a bonobo humanity?

‘Rise above yourself and grasp the world’ Archimedes – attribution

Posts Tagged ‘language

the language apes – how we differ from bonobos etc

leave a comment »

 

It seems that language is what separates us from every other species, and what has enabled us to dominate our planet. I suppose that’s stating the obvious, but how this language feature of ours evolved isn’t so obvious, as we can’t examine the brains of our more recent hominin ancestors, or listen to them talk, if they could, to connect all the dots. All we have to go on is an increasingly detailed knowledge of the neurological correlates to human language, and similar brain regions in chimps and bonobos. It’s an enormously complicated subject for the brain of a near 70-year-old ignoramus to dive into, so let’s do it.

What is ‘theory of mind’? It’s the ability to attribute mental states to others. We can do this with dogs and cats and other creatures we’re familiar with, in a vague way, but our fellow humans communicate this – not always accurately or honestly of course – with language. Certainly language is a tool that gives us an incalculably enormous advantage over other species, and we have created many thousands of them – languages, that is. It helps that we have brains some three times the size of our closest living relatives, but size isn’t everything, as we know, for example, from corvids and other smart species.

So we’ve been studying certain areas of the brain, such as Broca’s area, involved in language production, and Wernicke’s area (language reception) for many decades, and have found similar regions in other primates, though there are important differences. The human Broca’s area is larger in the left than in the right hemisphere, and there are similar but different enlargements for the left Wernicke’s area. The same asymmetry exists for their smaller, less developed analogues in other primates. Interestingly, left-handed types, like myself, have less asymmetry (or I’d prefer to say, more symmetry) than right-handers.

Sadly, we can’t study the brains of Neanderthals or any other extinct hominid in close relation to H sapiens to determine whether they had anything like our language skills, or indeed whether the first members of our species had them. According to AI (never lies), gathering info from such sources as the Australian Museum, Reddit, Wikipedia, Science Daily and Discover Magazine, ‘complex’ language (as opposed to complex language) was in operation among humans from 200,000 to 50,000 years ago, so it’s all a bit vague.

Exploring the issue by way of brain processes is more than problematic because I can’t see how we’ll ever have evidence outside of modern H sapiens, but what about the physical structures required to produce speech? There’s a difference, at least in my mind, between speech and language in that speech doesn’t necessarily involve grammar, it just starts with vocalisations representing objects, states (fear, pleasure, anger, warning etc). To produce these requires particular ‘hardware’. Here’s AI again:

The ability to speak required specialized “hardware” that differs significantly from other primates:
  • Lowered Larynx: In humans, the larynx (voice box) is positioned lower in the throat, creating a larger space (the pharynx) that allows for a wider range of resonant sounds.
  • Tongue and Mouth: Unlike other mammals, the human tongue is thick, muscular, and almost circular, allowing it to move vertically and horizontally to shape complex sounds like vowels.
  • Breath Control: Humans evolved finer control over the muscles used for breathing, which is necessary to sustain the long exhalations needed for sentences.

The third item mixes hardware with neural developments, no doubt, but our current and perhaps permanent inability to trace these developments back in time is teasingly frustrating.

One interesting finding has to do with the FOXP2 gene, aka ‘the speech gene’, which we share with Neanderthals. It’s so named because it encodes the FOXP2 protein (Foxhead box protein P2), which is found in many vertebrates, and is associated with vocalisation, including birdsong and echo-location.

References

https://med.stanford.edu/news/insights/2025/09/speech-gene-foxp2-huntingtons-wysocka.html

Written by stewart henderson

March 1, 2026 at 7:39 pm

a closer look at bonobos, enfin

leave a comment »

As this blog is called what it is, I’ve decided to read the entire, long, Wikipedia article on bonobos to get a more subtle and comprehensive feel for their society and how it shapes their individuality – though of course I’ll continue to write on completely different subjects. What I’m finding so far is that there are nuances, as you would expect, and as we find in human societies. And of course it would be the same with other social species – a member of the normally less dominant gender will, through proven capabilities or particular personality traits, be given a more prominent role than usual, and leadership of or status within the group is not solely based on gender. Ranking may have a degree of fluidity based on behaviour and alliances. Not all males are subordinate and not all females are bosses. Nevertheless, bonobos are definitely matriarchal – just as chimps are patriarchal, also with some fluidity.

It surprised me when I learned, some years ago, that bonobos have a ‘male philopatric’ society. The term conveys a gender distinction – the male stays ‘at home’ for mating and reproduction, while the female moves to another group for that purpose. This occurs in some human societies too. While visiting the Tiwi Islands just north of Darwin, I was told by our islander guide that he had just ‘lost’ his sister, who had moved to another tribal group to marry, meaning that their connection was permanently broken. His culture actually forbade him to have any more contact with her. So the early Catholic Church prohibitions against first, second, third and fourth cousins marrying, as described in Joseph Henrich’s historical account of the WEIRD world, as well as many long-held cultural traditions of Australasia and elsewhere, likely hark back to our hominid ancestors.

In any case, male philopatry doesn’t seem very matriarchal. There are of course good reasons for philopatry (male or female) in general, as well as good reasons for its opposite, male or female dispersal, which inevitably means that these behaviours, their causes and consequences, are widely disputed. I think I’ll return to this issue in another post.

A particularly interesting feature of bonobo culture, fairly recently recognised, is co-operation between two separate groups, or troupes. This was in the Congo’s Kokolopori Bonobo Reserve, which may, I think, represent a space between ‘the wild’ and ‘captivity’, and so may influence behaviour. From Wikipedia:

Over two years of observation, researchers witnessed 95 encounters between the groups. Contrary to expectations, these interactions resembled those within a single group. During these encounters, the bonobos engaged in behaviours such as grooming, food sharing, and collective defense against threats like snakes. Notably, the two groups, while displaying cooperative tendencies, maintained distinct identities, and there was no evidence of interbreeding or a blending of cultures. The cooperation observed was not arbitrary but evolved through individual bonds formed by exchanging favors and gifts. Some bonobos even formed alliances to target a third individual, demonstrating a nuanced social dynamic within the groups.

This contrasts importantly with the deadly clashes between groups of chimpanzees observed by Goodall and others.

Bonobos engage in tongue-kissing, the only non-human creatures observed to do so, at least thus far. And this brings us to sex, a difficult topic to write about, even in a blog nobody reads, given so many cultural and religious tabus swirling around it in human society. So, best just to be descriptive, without making comparisons to H sapiens. 

Bonobos aren’t monogamous, and they engage in sexual activity from an early age. It is mostly masturbatory, and indiscriminate, with the possible exception of mothers sexually engaging with adult sons. Heightened sexual activity often occurs when rich food sources are found, in which the masturbatory sex often occurs in large groups, increasing generalised bonding. Female masturbation is helped along by the fact that their clitorises ‘are larger and more externalised than in most mammals’. Well, here, comparison with humans is instructive:

… while the weight of a young adolescent female bonobo “is maybe half” that of a human teenager, she has a clitoris that is “three times bigger than the human equivalent, and visible enough to waggle unmistakably as she walks.

All quotes here are from Wikipedia, unless otherwise stated. The most common sexual combo is female-female. Their face-to-face, body-to-body interactions are referred to as genito-genital (G-G) rubbing, which is often accompanied by loud noises, hopefully of pleasure.

So, while female-female masturbation is the most practised sexual behaviour of the species, enhancing bonding against any male threats, male-male masturbation is also a regular thing:

The most common form of male–male mounting is similar to that of a heterosexual mounting: one of the males sits “passively on his back [with] the other male thrusting on him”, with the penises rubbing together because of both males’ erections

Clearly sexual activity is encouraged and valued as the most essential feature of bonobo society, and is practised in a variety of ways – penis-fencing, rump-rubbing, genital massaging, oral sex (among males) and, as mentioned, tongue-kissing. Adult-child sex is more common in males than females, though there’s no penetration. Is this because they’re avoiding pain, or because they know the connection with pregnancy? The general scientific consensus is that non-human species engage in sex based on instinct, hormones and such – that’s to say, more or less unconsciously without being aware of possible or likely consequences. I’m not entirely convinced, especially re our closest relatives, but how can this be tested? In any case, regardless of all this sex play, bonobo birth rates are no higher than those of chimps.

Unsurprisingly bonobo social relations are just as complex as those of chimps, and perhaps also humans, with personal animosities, rivalries and close friendships within and between genders, and the fact that infanticide in bonobo society hasn’t been observed isn’t proof that it hasn’t happened – after all, we’ve only known of the existence of bonobos for a little under a century. Still, bonobos are definitely different, and in what I would call an inspiring way. You could say that sex becomes a feel-good strategy, but also a way of diminishing any sense of male ownership of offspring. As Wikipedia puts it:

The strategy of bonobo females mating with many males may be a counterstrategy to infanticide because it confuses paternity. If male bonobos cannot distinguish their own offspring from others, the incentive for infanticide essentially disappears. This is a reproductive strategy that seems specific to bonobos; infanticide is observed in all other great apes except orangutans. Bonobos engage in sexual activity numerous times a day.

Anyway, enough of sex, let’s explore violence. Chimps, as mentioned, tend to be hostile to those not in their own troupe, and even patrol their own borders, looking for trouble. Very West Side Story. And yet, to my surprise, bonobos, are more violent in general.

In the wild, among males, bonobos are more aggressive than chimpanzees, having higher rates of aggressive acts, about three times as much. Although, male chimpanzees are more likely to be aggressive to a lethal degree than male bonobos which are more likely to engage in more frequent, yet less intense squabbling. There is also more female to male aggression with bonobos than there is with chimpanzees. Female bonobos are also more aggressive than female chimpanzees, in general. Both bonobos and chimpanzees exhibit physical aggression more than 100 times as often as humans do.

All of this sounds interesting, but ‘aggression’ might be a little more difficult to define than we think. In humans, for example, accusatory or bullying language, or the sharing of images, can be used aggressively without anything physical occurring. It has even been known to cause the victim to commit suicide. We have subtler and often more effective ways to make others suffer, and ‘non-physical’ aggression may have a physical, even deadly, impact. It is also a way of getting around laws prohibiting physical violence.

In any case, surely a major reason for the supposed greater physical aggression of chimps and bonobos, and doubtless other apes, compared to humans, is how we ‘count’ aggression. Is carpet-bombing physical aggression? Nuclear warfare? The wholesale slaughter of the Jews and the Congolese? The massacres of the ‘Crusades’? How can we not count remote, push-button slaughter, or starving people to death behind walls, or burning them to death in buildings, as physical aggression? Methinks there’s need for a rethink.

So let’s turn to something less controversial. Like all the great apes, bonobos pass the self-awareness mirror test, and it’s clear that the variations in their vocalisations have meaning, though whether they rise to the standard of a proto-language is a matter of definition. They also use many meaningful hand gestures.

A famous example of a bonobo being taught to communicate using a keyboard, and to respond effectively to whole sentences, is that of Kanzi:

Kanzi’s vocabulary consisted of more than 500 English words, and he had comprehension of around 3,000 spoken English words… Kanzi is also known for learning by observing people trying to teach his mother; Kanzi started doing the tasks that his mother was taught just by watching, some of which his mother had failed to learn….

Kanzi was also taught how to make simple stone tools, though he found a method of making them in his own bonoboesque way. There seems no doubt that effective rapport between bonobos and humans will benefit both species.

Finally, there’s the ecological importance of bonobos. They’re essentially one of the two apex species of their region, the other being elephants. Both species are frugivorous, and their ecological role is vital:

It is estimated that during its life, each bonobo will ingest and disperse nine tons of seeds, from more than 91 species of lianas, grass, trees and shrubs. These seeds travel for about 24 hours in the bonobo digestive tract, which can transfer them over several kilometers (mean 1.3 km; max: 4.5 km), far from their parents, where they will be deposited intact in their faeces. These dispersed seeds remain viable, germinating better and more quickly than unpassed seeds. For those seeds, diplochory with dung-beetles (Scarabaeidae) improves post-dispersal survival.

Diplochory means two-phase seed dispersal, using more than one vector or carrier.

Anyway, I think that’s more than enough info for one post. The Wikipedia article on bonobos makes for a very solid book chapter, with 178 references, so far. And it ends nicely with informing us all of the annual World Bonobo Day, established in 2017. No prizes should be given for guessing the date!

References

https://en.wikipedia.org/wiki/Bonobo

Joseph Henrich, The WEIRDest people in the world: how the West became psychologically peculiar and particularly prosperous, 2021

https://onlinelibrary.wiley.com/doi/10.1111/j.1365-294X.2011.05232.x#:~:text=Abstract,contrasts%20between%20and%20within%20species.

Written by stewart henderson

November 27, 2025 at 7:37 pm

on the origin of language – nature over culture?

leave a comment »

what think??

So, as someone who has been a language teacher for a fair proportion of my working life, I’m naturally interested in exploring this remarkable activity and ability that separates us from other primates, and indeed from all other species, certainly in terms of range, variety and flexibility.

First, there are structural and anatomical developments, in brain and body, that have enabled us to turn sound into speech. The hyoid bone, a sort of free-floating (well, not quite) horse-shoe shaped bone that sits near the top of the throat, above the larynx (aka the voice-box) and below the tongue, is one of many structural elements facilitating speech, though it serves other functions and is present in many other mammals. The pyramid-shaped larynx… well I’ll quote Wikipedia:

The larynx houses the vocal cords, and manipulates pitch and volume, which is essential for phonation. It is situated just below where the tract of the pharynx splits into the trachea and the esophagus.

The human larynx, hyoid bone and lower jawbone are apparently morphologically unique in the way they ‘move apart together and are interlocked via the muscles, while pulled into a vertical position from the cranium’. I’m guessing – I should say hypothesising, much more impressive that these morphological developments came in tandem with neurological developments connecting sounds to meanings, if you’ll excuse  my amateurish way of putting things. But before exploring language in terms of neurology, it’s important to be very clear about the anatomical differences between humans and other primates re these structures. Here’s a summary from a hopefully reliable website, linked below:

In adult primates the hyoid is a horseshoe shaped bone, located in the neck, just below the mandible and above the thyroid cartilage. In humans, the hyoid body is flat and bar-shaped and lies below the inferior margin of the mandibular body, just below the tongue root. However, in great apes the hyoid is placed superior to the inferior margin of the mandibular body and lies behind the tongue root.

In chimpanzees, bonobos, and gorillas there is a cup-shaped extension of the hyoid bone called the hyoid bulla, which is believed to keep open the connection between the vocal tract and pharyngeal air sacs. Modern humans lack this hyoid bulla. Fossil evidence tracks the loss to somewhere between Australopithecus afarensis (~3.3 million years old), which shares the Great ape hyoid bulla morphology, and a ~530 thousand year old Homo species ancestral to Neanderthals (sometimes included in Homo heidelbergensis) which shares the modern human hyoid shape. This loss is proposed to be adaptive for human speech development due to pharyngeal air sac impediment of forming easily perceptible speech sounds.

Much of this is still speculative I think, but the extraordinary range of human speech sounds, together with our ability to connect that variety of sounds to meanings, whether linguistic or paralinguistic, suggests that neurological and anatomical developments are interconnected in giving birth to speech and language.

 Speech sounds are one thing, but the varieties of language and meaning, the complex structures and connections that we appear to effortlessly form into the thousands of languages that we know to exist, that’s something else. Over the years there’s been a lot of argument about whether this seemingly endless variety of languages can be explained in terms of one particular type of neurologically determined, evolutionarily developed, ordering system. Noam Chomsky was one of the first to propose that there are common and unifying characteristics to all languages, and it seems to me that the fascinating evidence of how new creole languages can develop out of pidgin languages really strikes a blow for a natural selection basis to all human language. To be definitionally clear: ‘A creole is a pidgin language that has become the native language of the children of adult pidgin speakers’. While pidgin is a makeshift, make-do language, with limited fixity, creole, the creation of which takes a mere generation or two, is as fully-fledged as any other established language. 

Most languages have no written form, but there is no culture that we know of, either today or throughout the history that we can be clear about, going back some thousands of years, that lacks language. The Australian Institute of Aboriginal and Torres Strait Islander Studies (AIATSIS) recognises more than 250 indigenous languages, including around 800 dialects, and it’s impossible to pinpoint their origins in time. Most children have learned much of their native language by the age of three, with almost no tuition. Clearly there’s something going on here at the ‘unconscious’, that’s to say, neurological, level. 

Daniel Everett, and many others, make the claim that Homo Erectus was the first user of full-fledged language, but we certainly can’t prove this via neurology, and we lack clear evidence of the above-mentioned anatomical structures required for modern speech. So, if Homo Erectus had ‘language’, did she have it in much the same way as H Sapiens? Does the term ‘proto-language’ have any clear meaning?  This is a problem, as natural selection is generally seen as a gradual process. An opponent of this gradualist theory of language development, the linguist Liz Bates, puts this objection:

What protoform can we possibly envision that could have given birth to constraints on the extraction of noun phrases from an embedded clause? What could it conceivably mean for an organism to possess half a symbol, or three quarters of a rule? … monadic symbols, absolute rules and modular systems must be acquired as a whole, on a yes or no basis – a process that cries out for a Creationist explanation.

(in Gazzaniga, p80)

I’m presuming she doesn’t mean Creationist in the religious sense, but who knows? But just as the human brain, including its regions for processing language, evolved slowly – and this is hardly a controversial claim – it surely follows that language too, evolved in complexity over time.

Today we know of a number of brain regions that are key to language production, such as Broca’s area and Wernicke’s area, as well as language reception – the primary and secondary auditory areas. We also know that, after surgically dividing the two brain hemispheres, ‘only the left hemisphere is capable of using syntax to aid comprehension’ (Gazzaniga). Syntax and word order, and case markers such as genitive, nominative and accusative, are all expressed and or implied in different ways in different languages, but Chomsky and others have argued for an underlying or deep structure which is neurologically determined. Whether this is entirely provable – or has in fact been proven – is still a burning question, but it seems to me that the emergence of creoles – fully fledged languages – without deliberation, and the development, in regions like Australia and New Guinea, of hundreds of individual, essentially untaught languages separated by vast distances or impenetrable mountains and jungles, supports the claim for nature over culture. 

References

When we first talked,  PBS Eons video

Click to access 241_247.pdf

https://carta.anthropogeny.org/moca/topics/hyoid-bulla#:~:text=In%20chimpanzees%2C%20bonobos%2C%20and%20gorillas,lack%20this%20this%20hyoid%20bulla.

https://en.wikipedia.org/wiki/Creole_language

Michael Gazzaniga, Nature’s Mind (esp. Chapter 4 ‘Language and selection theory’), 1992

https://aiatsis.gov.au/explore/languages-alive#:~:text=Many%20languages-,In%20Australia%20there%20are%20more%20than%20250%20Indigenous%20languages%20including,of%20one%20language%20are%20spoken.

https://aeon.co/essays/tools-and-voyages-suggest-that-homo-erectus-invented-language

Written by stewart henderson

September 18, 2024 at 6:08 pm

olde worlde arguments on free will and determinism – MacIntyre, Bradley etc

leave a comment »

when you’re at the centre of your universe…

I’m struggling my way through some of the olde worlde philosophical discussions on the free will/determinism theme, which seem so abstruse and beside the point that I’m not quite sure why I’m bothering, and I actually find it more fun to look up these boffins on Wikipedia, etc… e.g.

Abraham I Melden – (1910- 1991) Canadian-born, associated with California and Washington Universities, essays on ethics and human rights, action theory

Donald Davidson – (1917-2003) US philosopher, taught at Uni of California, Berkley, also  at Stanford, Princeton, etc, analytic philosophy, philosophy of mind, philosophy of language, action theory. I actually read a book of his decades ago.

Alasdair Macintyre – (1929 – ) Scottish-US philosopher, has taught at Essex and Oxford Unis in England, and at Wellesley College, Notre Dame, Yale and many other Unis in the US; Aristotelian philosophy, history of philosophy, virtue ethics, converted to Catholicism in the 80s (!!). 

Again we find these philosophers getting stuck on the definition of terms – rationality, entailment, and many other irrelevancies. Take this passage by Macintyre and do what you want with it:

The logically unsophisticated determinist may seek to put his views beyond refutation by asking how we can be certain in any given case that some one of these features [the ‘indefinitely long’ set of determinative features set out by Aristotle et al, and added to by Freud and ‘future neurologists’ etc etc] will not be discovered or does not go undiscovered. But this question only has force, so long as we use the word ‘certain’ in such a way that we mean by ‘a certain proposition’ a proposition that we can have no reason to doubt; whereas in empirical discourse we mean, or ought to mean, by ‘a certain proposition’, not one that we can have no reason to doubt, but one that we do have no reason to doubt. This kind of determinist then can be answered by saying that a given act is free, if on reasonable inspection we find that none of the relevant features are present….

Got that? This is high-quality philosophical gobbledygook, which has no relevance whatever to the real matter of determinism, which has to do with your parents and ancestors, the culture and language you were born into, your genetics and the epigenetic effects upon them, your developmental experiences, your diet, how much sleep you’ve been getting lately and a multitude of other impacts upon your life, which ultimately determine whether you become a university professor in the USA or a Dogon hunter in Mali or Burkino Fasso, out of billions of possibilities…

But of course not billions of possibilities. If indeed you were born into the Dogon community of the Sahel in the early twentieth century, you would never have become a  prominent Anglo-American philosopher fifty years later. If you were born Jewish in Germany or Eastern Europe in the early 20th century, you would have been lucky to survive the holocaust. If you were born in rural China in the same period, you’d have been lucky not to starve to death as a result of ‘The Great Leap Forward’. And so on – think of Palestinians today in Gaza, or the Sudanese in Darfur and Khartoum. In short, the issue of determinism is no game, no amusing thought-bauble for undergraduates to cut their philosophical teeth on, it’s in fact what’s behind much of human inequality and suffering – as well as success.  

So, though I’m committed to finishing the collection of essays edited by Berofsky, for deterministic reasons (though hardly reasons, more like neurotic neural impulses), I’m just doing it to clear the way for the brighter light of Sapolsky.

Some of these philosophers debate or deliberate over whether reasons are causes, presumably preliminary to being able to claim that reasons emanate from the reasoning mind, which is free to reason as it wills. But of course this is BS, we reason according to all the influences that have contributed to our reasoning style and skills, and most of those influences occurred early on, which is why the Dunedin longitudinal study of personality types has found what it has found – that our ‘type’ is fixed at an early age. But the philosophers in the Berofsky volume don’t take the long view at all, They’re constantly reflecting on the moment – of deliberating, of deciding, of choosing etc, while employing some abstract agent in the process (always ‘he’), and tying themselves in knots, so it seems to me, about the conditions for and constraints against so-called deliberative or rational action. Something about cloistered academics debating each other…

I’ve read further into the Berofsky volume, including essays by:

Richard Taylor – (1919-2003) US philosopher, mostly associated with Brown University, author of Metaphyics (1963) and Virtue Ethics (1991), and many other works. 

John L Austin – (1911-1960) British philosopher with the standard credentials, educated and taught at Oxford, with teaching visits to Harvard and Berkley, etc. Worked mostly in philosophy of language, principal work, How to do things with words (1955/62)

Both of these philosophers’ essays miss the point horribly, it seems to me. Taylor spends a lot of time on the meaning of ‘deliberation’, as if this could clarify the free will/determinism issue in any way, though I was struck by one brief remark at the end of a fairly cogent paragraph :

… philosophers, no less than the vulgar, are perfectly capable of holding speculative opinions that are inconsistent with some of their own beliefs of common sense.

As a compleat vulgarian myself I want to protest, but then ‘speculative opinions’ can be anything, really, so I’m not sure what point is being made, other than that philosophers are generally considered to be superior beings. Well, if this volume is anything to go by….

But Taylor’s contribution is beaten hands down in terms of erudite vacuity by that of Austin, whose essay ‘Ifs and cans’ took me precisely nowhere. To me, it seems boringly obvious that analysing the meanings of words won’t much help us in clarifying the determining factors in the lives of people (or birds, trees, or bacteria). We, like all living things, live and continue to live, or not, due to preceding factors, such as a mix of gases creating what we call an atmosphere, and the still-mysterious formation of self-sustaining and replicating cells, which over millions of years form much more complex organisms which yet cannot but operate under determined conditions. It’s certainly true that we owe our sense of free will to that complexity, but a little close thought, and a knowledge of our deep history, should clarify the matter for us. It’s a bit like we think we’re free to think ‘for ourselves’ because we can’t see our neurons firing, our hormones and other electrochemical processes streaming, our specifics neural regions signalling to or suppressing other regions. So we think it’s ‘us’ that’s doing all this of ‘our own accord’. Do we ever think of bacteria, or even one of our more recent ancestors (e.g Juramaia, a rat-like creature that flourished 145 million years ago) choosing how to survive and thrive? Evolution, apart from anything else, should convince us that ‘free will’ is a myth. When did this free will come about? Gradually, some have said. Dogs and cats, etc have ‘limited’ free will, while we have the whole shebang. How? Uhh, complexity explains it, somehow. The more complexity, the more freedom. Bullshit, I say – it’s just that the determining factors are more complex. 

I need to read more of Sapolsky’s Determined as an antidote to all this philosophasting, but his previous book, Behave, also does the job. The whole book deals with the determining factors that go into any piece of behaviour, from a split-second before it occurs, right back to human ancestry. What more evidence do we need? 

Anyway, since these philosophers, arguing among themselves about ifs and cans, as if clarifying these terms might prove or disprove free will, use tennis as an example, i.e ‘he could have smashed that lob’, I’ve been thinking about all the determining factors that might affect the outcome of a pro tennis match.

First, one is seeded well above the other. This will clearly have a psychological effect on both, which will translate into physiological effects, e.g  one will play more aggressively, the other more conservatively. But one is coming back from injury and isn’t sure if she’s feeling ‘100%’, and so doesn’t go all out. Also one is playing before her home crowd, which can have subtle pyscho/physiological effects. One is feeling she’s past her best as a player, the other is an up-and-comer. The court surface is perhaps not to the liking of one of them, but a favourite surface for the other. The (perhaps changing) head-to-head record of these two players plays its psychological part. One is on a roll, the other has suffered surprising defeats recently. The crowd noise, the wind factor, the umpire’s previous decisions, the pep talk or strategy talk given by their couch before their match, a nasty argument with their girlfriend earlier in the day, a breakfast that didn’t agree with them and so on, all may play a greater or lesser part, and so in combination determine an outcome which nobody, least of all the players themselves, could have predicted with certainty beforehand. Determining factors are complex, and real – they’re not about the language you use for them. 

It seems to me that these mid-century philosophers were too interested in competing with each other, finding fault with each others’ language-based analyses, to see that language in itself has nothing whatever to do with determinism (though of course the language world you operate within – Yoruba, Hebrew, Tigre or Gaelic – will have determining effects on your life’s course). I can’t help but think of Shakespeare’s ‘expense of spirit in a waste of shame’. These writings aren’t exactly shameful but they do seem to me a waste. Clearly these are highly intelligent men, and it’s clearly a shame that they wasted their energies on such fruitless activities. Sabine Hossenfelder put it very simply and emphatically. ‘It’s no good saying you could have done otherwise. You DIDN’T!’ And what you did was determined.

References

Bernard Berofsky, Free will and determinism, 1966. 

https://www.zmescience.com/science/news-science/rat-creature-ancestor-mammals-11082018/

Robert Sapolsky, Behave, 2016

Robert Sapolsky, Determined, 2023

Written by stewart henderson

January 20, 2024 at 12:01 pm

language origins: some reflections

leave a comment »

smartmouth

Jacinta: So a number of readings and listenings lately have caused us to think about how the advent of language would have brought about something of a revolution in human society – or any other society, here or on any other planet out there.

Canto: Yes, we heard about orangutan kiss-squeaks on a New Scientist podcast the other day, and we’re currently reading Rebecca Wragg Sykes’ extraordinary book Kindred, a thoroughly comprehensive account of Neanderthal culture, which we’ve clearly learned so much more about in recent decades. She hasn’t really mentioned language as yet (we’re a little over halfway through), but the complexity and sophistication she describes really brings the subject to mind. And of course there are cetacean and bird communications, inter alia. 

Jacinta: So how do we define a language?

Canto: Yeah, we need to define it in such a way that other creatures can’t have it, haha.

Jacinta: Obviously it evolved in a piece-meal way, hence the term proto-language. And since you mentioned orangutans, here’s a quote from a 2021 research paper on the subject:

Critically, bar humans, orangutans are the only known great ape to produce consonant-like and vowel-like calls combined into syllable-like combinations, therefore, presenting a privileged hominid model for this study.

And what was the study, you ask? Well, quoting from the abstract:

… we assessed information loss in proto-consonants and proto-vowels in human pre-linguistic ancestors as proxied by orangutan consonant-like and vowel-like calls that compose syllable-like combinations. We played back and re-recorded calls at increasing distances across a structurally complex habitat (i.e. adverse to sound transmission). Consonant-like and vowel-like calls degraded acoustically over distance, but no information loss was detected regarding three distinct classes of information (viz. individual ID, context and population ID). Our results refute prevailing mathematical predictions and herald a turning point in language evolution theory and heuristics.

Canto: So, big claim. So these were orangutan calls. I thought they were solitary creatures?

Jacinta: Well they can’t be too solitary, for ‘the world must be orangutan’d’, to paraphrase Shakespeare. And interestingly, orangutans are the most tree-dwelling of all the great apes (including us of course). And that means a ‘structurally complex habitat’, methinks.

Canto: So here’s an even more recent piece (December 2022)  from ScienceDaily:

Orangutans’ tree-dwelling nature means they use their mouth, lips and jaw as a ‘fifth hand’, unlike ground-dwelling African apes. Their sophisticated use of their mouths, mean orangutans communicate using a rich variety of consonant sounds.

Which is interesting in that they’re less close to us genetically than the African apes. So this research, from the University of Warwick, focused a lot on consonants, which until recently seemed quintessentially human productions. Researchers often wondered where these consonants came from, since African apes didn’t produce them. Their ‘discovery’ in orangutans has led, among other things, to a rethinking re our arboreal past.

Jacinta: Yes, there’s been a lot of focus recently on vowel and consonant formation, and the physicality of those formations, the muscles and structures involved.

Canto: Well in this article, Dr Adriano Lameira, a professor of psychology who has long been interested in language production, and has been studying orangutans in their natural habitat for 18 years, notes that their arboreal lifestyle and feeding habits have enabled, or in a sense forced, them to use their mouths as an extra appendage or tool. Here’s how Lameira puts it:

It is because of this limitation, that orangutans have developed greater control over their lips, tongue and jaw and can use their mouths as a fifth hand to hold food and manoeuvre tools. Orangutans are known for peeling an orange with just their lips so their fine oral neuro-motoric control is far superior to that of African apes, and it has evolved to be an integral part of their biology.

Jacinta: So they might be able to make more consonantal sounds, which adds to their repertoire perhaps, but that’s a long way from what humans do, putting strings of sounds together to make meaningful ‘statements’. You know, grammar and syntax.

Canto: Yes, well, that’s definitely going to the next level. But getting back to those kiss-squeaks I mentioned at the top, before we get onto grammar, we need to understand how we can make all the sounds, consonantal and vowel, fricative, plosive and all the rest. I’ve found the research mentioned in the New Scientist podcast just the other day, which compares orangutan sounds to human beatboxing (which up till now I’ve known nothing about, but I’m learning). Dr Lameira was also involved in this research, So I’ll quote him:

“It could be possible that early human language resembled something that sounded more like beatboxing, before evolution organised language into the consonant — vowel structure that we know today.”

Jacinta: Well that’s not uninteresting, and no doubt might fit somewhere in the origins of human speech, the details of which still remain very much a mystery. Presumably it will involve the development of distinctive sounds and the instruments and the musculature required to make them, as well as genes and neural networks – though that might be a technical term. Neural developments, anyway. Apparently there are ‘continuity theories’, favouring gradual development, probably over millennia, and ‘discontinuity theories’, arguing for a sudden breakthrough – but I would certainly favour the former, though it might have been primarily gestural, or a complex mixture of gestural and oral.

Canto: You’d think that gestural, or sign language – which we know can be extremely complex – would develop after bipedalism, or with it, and both would’ve evolved gradually. And, as we’re learning with Neanderthals, the development of a more intensive sociality could’ve really jump-started language processes.

Jacinta: Or maybe H sapiens had something going in the brain, or the genes, language-wise or proto-language-wise, that gave them the competitive advantage over Neanderthals? And yet, reading Kindred, I find it hard to believe that Neanderthals didn’t have any language. Anyway, let’s reflect on JuLingo’s video on language origins, in which she argues that language was never a goal in itself (how could it be), but a product of the complexity that went along with bipedalism, hunting, tool-making and greater hominin sociality. That’s to say, social evolution, reflected in neural and genetic changes, as well as subtle anatomical changes for the wider production and reception of sounds, perhaps starting with H ergaster around 1.5 million years ago. H heidelbergensis, with a larger brain size and wider spinal canal, may have taken language or proto-language to another level, and may have been ancestral to H sapiens. It’s all very speculative.

Canto: Yes, I don’t think I’m much qualified to add anything more – and I’m not sure if anyone is, but of course there’s no harm in speculating. Sykes speculates thusly about Neanderthals in Kindred:

Complementary evidence for language comes from the fact Neanderthals seem to have had similar rates of handedness. Tooth micro-scratches and patterns of knapping on cores [for stone tool-making] confirm they were dominated by right-handers, and this is also reflected in asymmetry in one side of their brains. But when we zoom in further to genetics, things get increasingly thorny. The FOXP2 gene is a case in point: humans have a mutation that changed just two amino acids from those in other animals, whether chimps or platypi. FOXP2 is definitely involved with cognitive and physical language capacity in living people, but it isn’t ‘the’ language gene; no such thing exists. Rather it affects multiple aspects of brain and central nervous system development. When it was confirmed that Neanderthals had the same FOXP2 gene as us, it was taken as strong evidence that they could ‘talk’. But another, subtler alteration has been found that happened after we’d split from them. It’s tiny – a single protein – and though the precise anatomical effect isn’t yet known, experiments show it does change how FOXP2 itself works. Small changes like this are fascinating, but we’re far from mapping out any kind of genetic recipe where adding this, or taking away that, would make Neanderthals loquacious or laconic.

Rebecca Wragg Sykes, Kindred: Neanderthal life, love, death and art, pp 248-9

Jacinta: Yes, these are good points, and could equally apply to early H sapiens, as well as H ergaster and heidelbergensis. Again we tend to think of language as the full-blown form we learn about in ‘grammar schools’, but most languages today have no written form, and so no fixed grammar – am I right?

Canto: Not sure, but I understand what you’re getting at. The first English grammar book, more like a pamphlet, was published in 1586, when Shakespeare was just starting out as a playwright, and, as with ‘correct’ spelling and pronunciation, would’ve been politically motivated – the King’s English and all.

Jacinta: Queen at that time. Onya Elizabeth. But the grammar, and the rest, would’ve been fixed enough for high and low to enjoy Shakespeare’s plays. And to make conversation pretty fluid.

Canto: Yes, and was handed down pretty naturally, I mean without formal schooling. It’s kids who create new languages – pidgins that become creoles – when necessity necessitates. I read that in a Scientific American magazine back in the early eighties.

Jacinta: Yes, so they had the genes and the neural equipment to form new hybrid languages, more or less unconsciously. So much still to learn about all this…

Canto: And so little time….

References

Kindred: Neanderthal life, love, death and art, by Rebecca Wragg Sykes, 2021

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8478518/

https://www.sciencedaily.com/releases/2022/12/221220112426.htm

https://www.sciencedaily.com/releases/2023/06/230627123117.htm

https://en.wikipedia.org/wiki/Origin_of_language

https://humanorigins.si.edu/evidence/human-fossils/species/homo-heidelbergensis

 

Written by stewart henderson

July 19, 2023 at 6:36 pm

dyslexia is not one thing 3: problems with automaticity

leave a comment »

Q Canto: So the next hypothesised  basic source of dyslexia is ‘a failure to achieve automaticity’, that’s to say the sort of rapid, more or less unconscious processing of sounds into letters and vice versa, which probably means effective connection between brain regions or structures.

Jacinta: Perhaps because one of the structures is somehow internally dysfunctional.

Canto: wYes, and it often begins with vision. Researchers have found that many dyslexic individuals couldn’t separate two rapidly succeeding visual flickers as clearly as other individuals – an apparent processing problem. Similar research with dyslexic children found that, though they could identify stimuli initially as well as the non-dyslexic, they fell behind with added complexity and speed. This occurred more or less equally whether the stimuli were aural or visual. The connections just didn’t come ‘naturally’ to them.

Jacinta: So what about the connection between language – I mean speech, which is tens of thousands of years old – and reading and writing, a much newer development for our brains to deal with? Do dyslexic people have problems with processing good old speech? Are they slower to learn to talk?

Canto: Yes, a good question. Wolf describes research in which children with dyslexia in a number of languages, including English, ‘were less sensitive to the rhythm in natural speech, which is partly determined by how the sounds in words change through stress and ‘beat patterns’’ (Wolf, p177). Others have found breakdowns in processing in various motor tasks involving hearing and seeing. That’s to say, in the automaticity of such tasks. One psychologist who studies dyslexic children found an extensive range of problems with processing speed, especially a time gap or asynchrony between visual and auditory processing, and this observation has become commonplace.

Jacinta: But does this relate specifically to learning to speak? I’ve heard that Einstein was slow at that as a child.

Canto: Yes it’s said that he didn’t learn to speak full sentences before the age of five. But here we’re just talking about ‘naming speed’, and how it appears to use the same neurological structures as reading, as problems with one is predictive of problems with the other.

Jacinta: And the problem isn’t so much with naming per se, but the speed, the gap.

Canto: Yes, the lack of automaticity. Neurologists working in this field have developed ‘rapid automised naming’ (RAN) tasks which have become the most effective predictors of reading performance, regardless of language. Wolf herself has developed a refinement, rapid alternating stimulus (RAS), which, as the name suggests, gives more weight to attention-switching automaticity. Here’s an interesting quote from Wolf:

If you consider that the whole development of reading is directed toward the ability to decode so rapidly that the brain has time to think about incoming information, you will understand the deep significance of those naming speed findings. In many cases of dyslexia, the brain never reaches the highest stages of reading development, because it takes too long to connect the earliest parts of the process. Many children with dyslexia literally do not have time to think in the medium of print.

Jacinta: It makes me think of the unconscious, but not the Freudian one. A processing that you don’t have to think about. So that you can think about the info, not the form that encapsulates it.

Canto: Yes, and none of this explains why some have these problems with automaticity – which brings us back to neurology. Are dyslexic individuals using a different circuit from the rest of us, and does this explain their skills and abilities in other areas?  Remember the names – Einstein, da Vinci, Gaudi, Picasso… not that dyslexia guarantees genius or anything…

Jacinta: Yes, far from it, I’d say, but it’s a fascinating conundrum.

Canto: So, neurology. And this takes us to how the ‘reading brain’, a very new phenomenon, evolutionarily speaking, came into being. fMRI images appear to confirm hypotheses that the brain ‘uses older object recognition pathways in the occipital-temporal zone (area 37) to name both letters and objects’ (Wolf, p179). It’s a process described as ‘neuronal recycling’. And it takes us to brain regions associated with particular tasks. For example, the left occipital-temporal area is apparently more associated with object naming, a much older task, evolutionarily speaking, than letter naming, and one that takes up more cortical space. The more streamlined, specialised use of this region for letters, and the development of automaticity for that purpose, is a prime example of our much-vaunted neuroplasticity.

Jacinta: What they’ve called RAN is always faster for letters than objects – that’s perhaps because letters are a small, even quite tiny subset of the near-infinite set of objects.

Canto: Yes, and here I’m going to quote a difficult passage by Wolf at  some length, and then try, with your help, to make sense of it:

…culturally invented letters elicit more activation than objects in each of the other ‘older structures’ (especially temporal-parietal language areas) used for reading in the universal reading brain. This is why measures of naming speed like RAN and RAS predict reading across all known languages. It is also why, side-by-side, the brain images of the object- and letter-naming tasks are like comparative evolutionary photos of a pre-reading and post reading brain (Wolf, p181).

Jacinta: So this is a bit confusing. Culturally invented letters are new, evolutionarily speaking. And there are older language structures used for reading. Repurposed? Added onto? A bit of renovation? And what exactly is ‘the universal reading brain’?

Canto: Good question, and a quick internet research reveals much talk of a ‘universal reading network’. Here’s a fascinating abstract from a 2020 study, some ten years after the publication of Wolf’s book. It’s entitled “A universal reading network and its modulation by writing system and reading ability in French and Chinese children”:

Are the brain mechanisms of reading acquisition similar across writing systems? And do similar brain anomalies underlie reading difficulties in alphabetic and ideographic reading systems? In a cross-cultural paradigm, we measured the fMRI responses to words, faces, and houses in 96 Chinese and French 10-year-old children, half of whom were struggling with reading. We observed a reading circuit which was strikingly similar across languages and consisting of the left fusiform gyrus, superior temporal gyrus/sulcus, precentral and middle frontal gyri. Activations in some of these areas were modulated either by language or by reading ability, but without interaction between those factors. In various regions previously associated with dyslexia, reading difficulty affected activation similarly in Chinese and French readers, including the middle frontal gyrus, a region previously described as specifically altered in Chinese. Our analyses reveal a large degree of cross-cultural invariance in the neural correlates of reading acquisition and reading impairment.

So this research, like no doubt previous research, identifies various brain regions associated with reading ability and impairment, and finds that the same automacity, or lack thereof, is associated with the same regions, such as the middle frontal gyrus, in both alphabetic and ideographic reading systems. I think this is further confirmation of the research work Wolf is citing. Of course, I don’t know much about these brain regions. A course in neurology is required.

Jacinta: But what Wolf appears to be saying in that earlier quote is that you can get brain images (via fMRI) of object naming (older brain) tasks and put them side by side with images of letter naming tasks (younger brain), and it’s like seeing the results of evolution. Sounds a bit much to me. I suppose you can see a different pattern. Isn’t fMRI based on the magnetism of iron in the blood?

Canto: Yes yes. This is complex, but of course it’s true that the neural networking required for reading and writing is much more recent than that for language – and remember that of the 7000 or so languages we know of, only about 300 have a written form, which suggests that the Aborigines, before whities arrived, and the Papua-New Guineans, who have about 700 different languages on their island, were unable to even be dyslexic, or were all dyslexic without knowing it, or giving a flying fuck about it, because they had no writing, and no wiring for reading it.

Jacinta: So it would be interesting, then, to scan the brains of those language users – and there are no humans who aren’t language users – who don’t have writing. Take for example the Australian Aborigines, who became swamped by white Christian missionaries determined to ‘civilise’ them, more or less overnight in evolutionary terms, through teaching them to read and write. And then would’ve been characterised as backward for not picking up those skills.

Canto: That’s an interesting point, but it’s the same even in ‘cradles of civilisation’ such as Britain, where the vast majority were illiterate, and encouraged to be so, 500 years ago. At that time the printing press was a new-fangled device, church services were mostly conducted in Latin, and it was convenient to keep the peasantry in ignorance and in line. And yet, when it became more convenient to have a literate population, the change appears to have been relatively seamless, dyslexia notwithstanding. So it seems that, from a neurological perspective, little change was required.

Jacinta: Yes, that’s a good point, and it points to brain plasticity. Curiouser and curiouser – so it’s not so much about evolution and genes, but relatively rapid neural developments…. to be continued…

References

M Wolf, Proust and the squid, 2010

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7082242/

https://elifesciences.org/articles/54591

Written by stewart henderson

April 21, 2023 at 5:02 pm

dyslexia is not one thing 2: structural deficits

leave a comment »

the human brain- a very very rough guide

Jacinta: So we’re going to look at earlier ideas about dyslexia, before the recent revolution in neurology, if that’s not being too hyperbolic. These ideas tended to focus on known systems, before there were well-identified or detailed neural correlates. ‘Word-blindness’ was an early term for dyslexia, highlighting the visual system. This was partly based on the 19th century case of a French businessman and musician who, after a stroke, could no longer read words or musical notes or name colours. A second stroke worsened the situation considerably, eventually causing his death.

Canto: An autopsy revealed that the first stroke had damaged the left visual area and part of the corpus callosum, which connects the two hemispheres. It appears that what the man was seeing with his right hemisphere was not able to be ‘backed up’ by the left visual area, and/or connected to the left language area. The second stroke struck mainly the angular gyrus, a complex and vital integrating and processing region towards the back of the brain.

Jacinta: Yes, and before we go on, what we’re doing here is looking in more detail at the four potential sources of dyslexia set down at the end of the previous post. So in this post we’re focusing on 1. a developmental, possibly genetic, flaw in the structures underlying language or vision. 

Canto: Right, so there’ll be three more dyslexia posts after this. So this ‘Monsieur X’ case was one of ‘classic alexia’ or acquired dyslexia, and marked an important step forward in mapping regions in relation to the visual and processing aspects of language. Norman Geschwind described it as ‘disconnection syndrome’, when two brain regions essential to a function, in this case written language, are cut off from each other.

Jacinta: The auditory cortex became an important focus in the twentieth century, as researchers noted a problem with forming ‘auditory images’ – which sounds like a problem everyone would have! More specifically it means not being able to translate the images made by letters and phonemes into sounds.

Canto: Yes, so that a word like ‘come’ (which is actually quite complex – the hard ‘k’ followed by an ‘o’ which, orally, is neither the typically short nor long version, followed finally by the silent ‘e’ which has some quite strange effect on the previous vowel) would be quite a challenge. Perhaps the real surprise is that we have no trouble with it.

Jacinta: Yes, I prefer cum myself, but that’s a bit off-topic. Anyway, psycholinguistics, much derived from the work of Noam Chomsky, which came into prominence from the 1970s, tended to treat dyslexia more as specifically language-based rather than audio-visual. Taking this perspective, researchers found that ‘reading depended more on the linguistically demanding skills of phonological analysis and awareness than on sensory-based auditory perception of speech sounds’ (Wolf, p173). This was evidenced by the way impaired-reading children treated ‘visual reversal’ in letters (e.g p and q, b and d). They were able to draw the letters accurately, but had great trouble saying them (sounding them). This appears to be a spoken language problem, which carries over to writing.

Canto: Indeed, it highlighted a problem, which apparently had nothing to do with intelligence, or basic perception, but was more of a specific perception-within-language thing:

These children cannot readily delete a phoneme from the beginning or end of a word, much less from the middle, and then pronounce it; and their awareness of rhyme patterns (to decide whether two words like ‘fat’ and ’rat’ rhyme or not) develops much more slowly. More significantly, we now know that these children experience the most difficulties learning to read when they are expected to induce the rules of correspondence between letters and sounds on their own.

Phonological explanations of dyslexia have resulted in a lot of effective remedial work in recent decades, and a library of research in the field of reading deficits.

Jacinta: Yes, these are called structural hypotheses, noting deficits in awareness of phonemic structure, and phoneme-grapheme correspondences. And these deficits presumably have their home in specific neural regions and wiring. The executive processes of the frontal lobes may be at play, in terms of organised attention, the fixing of memory and the monitoring of comprehension, but also the more ‘basic’ processes of the cerebellum, involving timing and motor coordination. And co-ordination between these regions may also be an issue.

Canto: And, as Wolf points out, these structural hypotheses have sheeted home problems to so many brain regions – the frontal executive function region, the speech region close by, the central auditory region, the language and language/visual integration regions, the posterior visual cortex and the cerebellum – that it would be fair to say that ‘many of the collective hypothesised sources of dyslexia mirror the major component structures of the reading brain’ (Wolf, p176).

Jacinta: Which sounds pretty serious. Why is it happening? And why not for others…?

References

M Wolf, Proust and the squid: the story and science of the reading brain

https://www.kenhub.com/en/library/anatomy/angular-gyrus

 

Written by stewart henderson

April 16, 2023 at 4:50 pm

dyslexia is not one thing, apparently

leave a comment »

Canto: So I’ve been reading Proust and the squid, by Maryanne Wolf, a book I bought back in 2010, when it was published, and apparently read at the time, though I remember very little about it. Did I really read it? I suspect I didn’t finish it. Anyway, it’s subtitled Science and the reading brain, and since we do a lot of reading, mostly still in the old-fashioned way (stuff written on paper), the subject is of obvious interest.

Jacinta: Yes, it’s interesting to reflect that though writing, of various types, came into being four to five thousand years ago, it’s only in the last few centuries that reading has become anything like universally adopted. And our brains have had to adapt to reading…

Canto: Yes, think of reading to ourselves, in a language that’s based on sound. Which not all languages are, if I’m not mistaken. So I imagine that non-phonological languages (is that a meaningful term?) use the brain in a different way…

Jacinta: It’s more complicated than that – for example, there’s a difference between phonetics and phonemics, in which the letter ‘t’ is sounded differently depending on its place within a word and what letters surround it, for example in ‘th’ words, and that phoneme is sounded differently, for example in ‘the’ and in ‘beneath’, if you listen carefully. We generally don’t notice these differences until they’re pointed out to us. And the English language is full of them. Phonemes can be divided into allophones, as they’re called. But getting back to dyslexia…

Canto: Well, first it needs to be made clear that dyslexia has nothing to do with lack of intelligence. Both Einstein and Leonardo da Vinci, the names most often trotted out as examples of genius, were likely dyslexic, or maybe I should say they suffered from some form of dyslexia – because it’s really really complex and multi-faceted, and seems to involve right-left brain differences. The last two chapters of Wolf’s book, ‘Dyslexia’s puzzle and the brain’s design’ and ‘Genes, gifts and dyslexia’, are fiendishly difficult for someone like me, with very little background in neurology, but fascinating, and I think it’ll take several posts to cover not only what’s in the book but the ongoing research since it was written.

Jacinta: Yes that reminds me of Sapolsky’s statement in Behave, that more neurological papers have been published in the 21st century than in all previous centuries combined – and that book was published five years ago.

Canto: Well, it’s not surprising, it’s a burgeoning area of research, looking for neural co-ordinates for various disabilities, proficiencies, tendencies… As well as genetic correlations. And epigenetic too, maybe. Anyway, to begin somewhere, Wolf describes a hypothesis that derives from the thinking of a famous and apparently prophetic 20th century neurologist, Norman Geschwind:

The genes that form the basis for a strengthened right hemisphere could have been highly productive in preliterate societies, but when these same genes are expressed within a literate society, they put structures in the right hemisphere in charge of the precise, time-based functions of reading. These functions would then be performed in the unique ways of the right hemisphere, rather than in the more precise, time-efficient ways of the left hemisphere. In the case of reading, that situation would lead inevitably to difficulties.

M Wolf, Proust & the squid: the story and science of the reading brain, pp205-6

Now, I had no idea that the left hemisphere was more precise and time-efficient than the right…

Jacinta: But this quote doesn’t quite make sense to me. We’re all descended from pre-literate societies after all, so with ‘highly productive right hemispheres’. And then, when literacy came along – what? The right hemisphere took on these ‘precise, time-based functions of reading’ in its ‘unique way’, when it would’ve been better to use the left hemisphere, which is better adapted for the purpose, apparently. Wouldn’t this make us all a bit dyslexic?

Canto: Yes, maybe that’s the point. But there’s also no doubt that the reading brain – which may one day become obsolete in the digital and post-digital world – has transformed our society more or less completely. So having serious reading/writing deficits can be a major problem, perhaps especially for highly intelligent people who might feel the disadvantage more.
So dyslexia, as the word suggests, is a broad and negative term which essentially covers all deficiencies in grasping and producing written text. Wolf presents, inter alia, the definition of The International Dyslexia Association:

Dyslexia is a specific learning disability that is neurological in origin. It is characterised by difficulties with accurate and/or fluent word recognition and by poor spelling and decoding abilities. These difficulties typically result from a deficit in the phonological component of language that is often unexpected in relation to other cognitive abilities and the provision of effective classroom instruction. Secondary consequences may include problems in reading comprehension and reduced reading experience that can impede growth of vocabulary and background knowledge.

Note that the only reference to causes here is that it’s ‘neurological in origin’.

Jacinta: Well mention has been made about right and left sides of the brain – does it get any more specific?

Canto: Of course – but as one researcher points out, dyslexia isn’t a reading disorder, as there are no reading centres in the brain. It’s rather a disorder in one or more regions of the brain that have been co-opted for reading and writing. Wolf describes a pyramid of nested connections regarding the disorder. First we observe a behavioural problem, in the act of getting words wrong in reading and writing, or an abnormal slowness and struggle in gaining proficiency in acquiring those skills. Next comes the observation of a pattern of disability, such as seeing/writing/speaking particular letters or phonemes incorrectly. Then there’s the connection between these deficits and neural structures. The next step is homing in on particular neurons and neural circuits, and finally taking this back to the level of particular genes.

Jacinta: But there aren’t any specific genes are there?

Canto: Well, not in the sense of genes for height or eye colour, or even language, which may go back to the earliest Homo sapiens. Literacy is a cultural invention. To quote Wolf:

Across all written languages, reading development involves: a rearrangement of older structures to make new learning circuits; a capacity for specialisation in working groups of neurons within these structures for representing information; and automaticity – the capacity of these neuronal groups and learning circuits to retrieve and connect this information at nearly automatic rates.

M Wolf, Proust and the squid, p 170

Genes aren’t specifically mentioned here – but neurologists are understandably asking whether this ‘rearrangement of older structures’, and possible failures in this rearrangement, have a genetic basis, just as the development of language itself presumably has (though this development too is shrouded in mystery). Wolf goes on to outline four ‘potential basic sources for dyslexia’. I’m going to set them down here because, frankly, I barely understand them. See what you make of them.

  1. a developmental, possibly genetic, flaw in the structures underlying language or vision (e.g. a failure of working groups to learn to specialise within those structures)
  2. a problem achieving automaticity – in retrieving representations within given specialised working groups, or in the connections among structures in the circuits, or both
  3. an impediment in the circuit connections between and among these structures
  4. the rearrangement of a different circuit altogether from the conventional ones used for a particular writing system

Jacinta: Hmmm. I don’t know what she means by ‘working groups’ – of neurons? The fourth one is the only one that I half comprehend. That some forms of dyslexia have harnessed a different circuit which isn’t quite as effective but gets there in the end? Or not?

Canto: Yes, on reflection I half-comprehend the others, and see them as rather connected. For example, failure to achieve automaticity sounds similar to having an impediment in the connections. With some it feels seamless – or doesn’t feel anything at all. I can’t remember ever learning to read or having problems with it, and loved school spelling bees, being very good at them. Anyway, Wolf elaborates on each of these four principles, and I think we should try to follow them in the next blog post. We’ll be better human beings for the process, I’m sure. Because, difficult though it is, I’ve found this to be one of the most intriguing and stimulating books I’ve read for some time.

Jacinta: Okay, let’s go for it.

References

Maryanne Wolf, Proust & the squid: the story and science of the reading brain, 2010

Click to access memorialminute_geschwind_norman.pdf

https://en.wikipedia.org/wiki/Origin_of_language

 

Written by stewart henderson

April 11, 2023 at 9:13 pm

Posted in dyslexia

Tagged with ,

a bit about writing and reading origins

leave a comment »

We’ll perhaps never know – but I should never say never. We’re still a long way from knowing when we first developed language. After all, what exactly is language? How do we define it? Chimps and bonobos, and other apes and monkeys, not to mention cetaceans and perhaps other species, perhaps in the class of cephalopods, have more or less sophisticated ways of communicating which at least partially resemble language…

But that’s not what I wanted to focus on in this essay. I want to focus on the origin of writing, and its corollary, reading. I’m reading Maryanne Wolf’s 2010 book Proust and the squid for the second time, this time perhaps a little more carefully, while thinking on what constitutes a writing system and how writing and reading changed the human world. Terms such as logogram, syllabary, cuneiform, abecedary and hieroglyph, as well as peoples – the Sumerians, the Egyptians, the Akkadians and the Ugaritic people of the northern Levant – these are all floating around in my head like so much flotsam and jetsam at present, and I’m hoping that some writing of my own might make sense of it all.

There are questions, of course, about the first writing system. For example, when we find impressions on clay, or daubs on walls which appear to have some structure that we can’t decode, how can we know if it is writing? There appears to be some agreement – though it’s contested by some Egyptologists – that the first writing was Sumerian, from the lower Mesopotamian, which evolved into something called cuneiform about 5400 years ago. But it’s also generally agreed that writing was invented independently as many as four times. And there may yet be more early forms to discover. And there should be no reason to believe that these independently-created writing systems would resemble each other.

So let’s have a look at some of them. First, cuneiform, shown above:

The word ‘cuneiform derives from the Latin word cuneus, ‘nail’, which refers to the script’s wedge-like appearance. Using a pointed reed stylus on soft clay, our ancestors created a script that looks, to the untutored eye, a lot like bird tracks.

Maryanne Wolf, Proust and the squid, p32

Around 5000 of these clay tablets have been found, in temples and palaces but also in ancient warehouses, used mostly for accounting. What’s most important to note with these figures is that a sufficient number of people would need to know how to interpret – ‘read’ – them to make the process worthwhile. And that this writing-reading system would require new neurological connections, or the adaptation of existing ones. This would require time, a gradualism from a more painstaking pictorial representation to more abstract, easily constructed and comprehended forms. It’s been argued that many written languages retain the vestiges of pictorial forms, though clearly some more than others. Wolf makes this observation:

Soon after it originated, Sumerian cuneiform, mysteriously and rather astonishingly, became sophisticated. Symbols rapidly became less pictographic and more logographic and abstract. A logographic writing system directly conveys the concepts in the oral language, rather than the sounds in the words. Over time many of the Sumerian characters also began to represent some of the syllables in oral Sumerian. This double function in a writing system is classified by linguists as a logosyllabary, and it makes a great many more demands on the brain.

Ibid, pp33-34

It’s a difficult passage, for me at least. How do we know today the ‘syllables in oral Sumerian’, a language nobody has spoken for millennia? I understand that a logographic writing system, like Chinese, is conceptual, but a concept can also be pictorial in some sense. A website called WikiDiff puts it this way:

Strictly speaking, a “pictogram” represents by illustration, an ”ideogram” represents an idea, and a ”logogram” represents a word: Chinese characters are all logograms, but few are pictograms or ideograms. Casually, ”pictogram” is used to represent all of these: it is a picture representing some concept.

So, to put it, mildly, it’s complex. I’m not sure if there’s anything ‘strict’ about it – a piece of writing, in the alphabet I’m now using, is read as sounds, images and/or ideas, or none of these (if we don’t know the word). Do we think of ‘the’ and ‘and’ as sounds when we read them (as opposed to hearing them)? Perhaps, but so fleetingly… The word ‘and’ surely conveys an idea of continuation or plurality depending on context, and ‘the’ conveys the concept of definiteness as opposed to ‘a’ or ‘any’. But all of these are composed of sounds, or ‘sound representations’, of course, barely noticed due to their familiarity.

My own brain, and the brains of virtually all my acquaintance, is wired for the alphabet, derived from Ancient Greek. A Chinese reading brain is apparently quite different. Quoting Wolf again:

Unlike other writing systems (such as alphabets), Sumerian and Chinese show considerable involvement of the right hemisphere areas, known to contribute to the many spatial analysis requirements in logographic symbols and also to more global types of processing. The numerous, visually demanding logographic characters require much of both visual areas, as well as an important occipital-temporal region called area 37, which is involved in object recognition and which [the French cognitive neuroscientist Stanislaus Dehaene] hypothesises is the major seat of  ‘neuronal recycling’ in literacy.

Ibid, pp35-36

I have no memory whatever of leaning to read. It’s as if I could always do so, and grammar and spelling came very easily to me. I was never read to as far as I can recall, though our home, in one of Australia’s most working-class neighbourhoods, was always full of books. The Sumerians, of course, didn’t have books in our sense, and their writing systems, and those of today’s Chinese, took years to learn. The Sumerians – those of the upper class – learned their symbols off clay tablets, which they would copy on the reverse side. It took years of self-discipline, and harsh discipline from above, to learn long lists of words and how to convey them, phonetically and conceptually, in symbols.

I’m trying to understand this, to get it under my skin. What the Sumerians were doing wasn’t just learning a handed-down alphabetical, phonemic system, they were creating such a system – not alphabetic in our sense, but based on phonemic and morphological symbols that needed to be agreed upon and bedded down. Morphemes being those essential additives that indicate plurality or tense. And this, according to Wolf and many others, was a decisive breakthrough in our intellectual history:

For the first Sumerian teachers this resulted in a long-lasting set of linguistic principles that facilitated teaching and learning and also accelerated the development of cognitive and linguistic skills in literate Sumerians. Thus, with the Sumerians’ contribution to teaching our species to read and write, the story began of how the reading brain changed the way we all think. All of us…

Ibid, p39

But Sumerian died out, as languages do. By 1600 BCE no-one was left to speak it. By that time the Akkadian language was in the ascendant in Mesopotamia. The Sumerian writing system and teaching methods, though, had been incorporated in various forms by the early Persian and Hittite civilisations, among others, and the Akkadians continued the tradition, helping to  preserve something of that system over the next millennium.

Akkadian script, however, became increasingly syllabic, retaining only a few significant logographic (pictorial) elements. We have managed to uncover a lot of Akkadian texts, including the first great adventure story in literature, the Epic of Gilgamesh, which seems to have refined and greatly elaborated upon earlier Sumerian and Old Babylonian tales. It’s likely that it had a stylistic influence on the later Homeric tales – looking forward to reading it.

As to how different reading and writing systems affect the brain, and associated thought processes, I recall when I obtained my first computer in the 1990s. I’d been writing regularly, in diaries, since the late 70s, crabbed non-cursive writing in foolscap books, about 14 in all. Changing to a computer slowed things down as I’d never learned to type and I still can’t touch-type. It’s hard to say how this change affected the content and style of my writing, but I know it did. Editing, of course, became much easier, though I sometimes felt guilty, or a cheat, for so easily erasing my first thoughts for more ‘improved’ ones.

But that’s another story. How did the alphabet we use today come about? One of the first alphabetic or proto-alphabetic systems was the north Semitic alphabet from the region of what is now northern Syria. The term ‘Semitic’, often these days associated with Jewishness, actually refers more accurately to a language group widespread throughout Western Asia and Northern Africa. The north Semitic alphabet is the first known alphabetic writing system, ancestral to the Phoenician and later Greek alphabets. The term ‘north Semitic’ now seems questionable, as the oldest inscriptions in the language were recently found at Wadi el-Hol, a site near the Nile in Egypt. The topic of early or earliest alphabetical scripts anyhow seems very tangled and contested, and no doubt mixed up with national and regional pride as well as scholarly reputation. Still, I might have a go at at in a future post…

References

Maryanne Wolf, Proust and the squid, 2010

https://www.britannica.com/topic/Sumerian-language

https://en.wikipedia.org/wiki/Akkadian_language

https://en.wikipedia.org/wiki/Semitic_languages

 

Written by stewart henderson

March 2, 2023 at 4:21 pm

me and Montaigne

leave a comment »

Montaigne’s better half

 

I have no more made my book than my book has made me

Michel de Montaigne 

Before I start on Montaigne, some remarks on the title of this essay. Many English teachers are wont to correct it to ‘Montaigne and I’, hohum, but as an English teacher myself and an iconoclast of minuscule proportions, I beg to differ. The idea is that ‘me’ is an object pronoun, and that using it as a subject pronoun (as in ‘me and Montaigne is good mates’) is simply incorrect. This is bullshit, technically speaking. There’s no such thing as correct English, or correct any other language. I’ve had run-ins with fellow teachers on this, and it’s very headache-inducing. One argument is ‘How can you call yourself an English teacher if you don’t believe in the rules?’ But the rules of grammar aren’t delivered from on high, by lofty teachers or grammarians. They emerge in a community of like-minded souls who want to communicate effectively. There are some 7000 languages (and falling) in the world, setting aside dialects within particular languages. Less than half of these have a written form that’s utilised regularly by the language-users. So they don’t have grammar books telling them what the rules are. The first English grammar book, which was little more than a pamphlet, was published in 1586, obviously long after the language started on the evolutionary path that it’s still on.

All of this is not to say that language teachers are redundant. Sticking with English, what we teach is standard English, the English that’s found in current grammar books and written in works of fiction and non-fiction currently. It has two slightly divergent forms – British and United Stater English. Now anyone who’s an avid reader of English literature, going back to Shakespeare, Chaucer and so on, and forward to Milton, Austen and Eliot (George or T S), will notice subtle and not-so-subtle shifts in the language – in orthography as well as syntax. And with the spoken form we’re less structure-driven, we change our language depending on who we’re talking to, and we accompany our speech with a variety of paralinguistic features. Language is as alive as we are, it grows and changes, and in ye olde days grammar texts and dictionaries had to be renewed regularly to keep up, but now we have the magic of the internet…

But getting back to ‘me and Montaigne’, this is now acceptable in speech, and mostly in writing, because it involves no ambiguity whatsoever, and, more importantly, because it has become common usage. On the contrary, to say ‘me went for a swim’ also involves no ambiguity, but it sounds wrong, for the sole reason that it hasn’t become common usage, though it might, sometime in the future. To argue that ‘me went for a swim’ is simply wrong because me is always an object pronoun is just a statement about current usage. ‘You’ is currently used as both a subject and and object pronoun, why not ‘me’? Of course, saying ‘me and…’ is more plebeian, while saying ‘…. and I’ means you’re more likely to have a six-figure income and live in a gated community (not a gaol), but unfortunately ‘speaking the King’s English’ won’t guarantee you a place at court, so don’t worry about it.

So, getting back to Montaigne and me, I first read a selection of his essays in my early twenties, and he’s been a touchstone for me ever since. I need to thank him for encouraging me to become a writer. His mixture of me me me together with reflections on history, politics, science (insofar as there was much decent science in his time) and human behaviour really struck chords with me. I think he once wrote something like ‘I write not just to explore myself but to create myself’, though I can’t now find the reference – but the epigraph to this essay comes close enough. Anyway, I think he also wrote something like ‘whenever I learn of another’s good or bad behaviour, I think ‘how is it with me?”, and if he didn’t write that, it’s clear from his writings that this ‘egoism’ is a major focus. It’s what inspired me – a positive egoism – and I’ve followed him in trying to create a better self through reading, learning, and writing about it all.

There’s a vas deferens, of course, between me and him. He inherited a castle and a whole lotta land from his dad, who was clearly the dominant parent for him. My dad once bought me a motorbike, and to my shame I never thanked him for it. By that time my parents had separated. My mother was the head of our household, the breadwinner, the disciplinarian and influencer, and sadly for me, very much the enemy. To use the phrase of the day, I came from a broken home. The major result of the various minor traumas I experienced at home and school was an excessive hatred of being told what to do. My mother, sensing that I needed some ‘male discipline’, and with a mortal fear that I might be homosexual, tried to interest me in a manly career in the military, or the police perhaps. I would have preferred a quick, painless death. Sometimes mine, sometimes hers. All the same she was a hard-working, successful woman, who turned her children into feminists without ever saying a word on the subject.

Anyway, I read, and lived in the different countries of the past. And so it continues, though over time I’ve moved from the worlds of Hardy, Austen and Stendhal (fond memories) to the Big Issues of politics, science and How We Are to Live, and I started to write, and to like myself as a writer, while always being a bit ashamed of my hubris.

And I encountered Montaigne. Thoroughly egoistic and yet kind of self-effacing. Que sais-je?, his Socratic motto, sort of summed it up, especially as it was worn as a medallion around his neck (but perhaps this was a conceit of the artist who painted his portrait). It made so much sense to me – I loved it. Now I’m trying to mine his essays for anything faintly bonoboesque, with little success so far. Montaigne, typically for his time, was absorbed in the affairs of men, and in his essay-writing retirement he loved to consult the ancient classics, all written by men. Montaigne did marry and have children, but we know little more than that. His father seems to have been a much more significant influence on him, at least as far as he understood it, than his mother, whom he barely mentions – but then, he seems to have been the subject of his super-rich dad’s humanist experiments. He was literally farmed out as a baby to one of the peasant families his father owned, presumably to experience the sweated labour of the indigent, but it’s doubtful that he learned much since he was back in the castle by age three. Another of his dad’s brilliant ideas was to force the lad to learn Latin by having all his servants and teachers speak to him solely in that language. Then at age six he was shuffled off to a boarding school headed by the leading Latin scholar of the day. He apparently performed well in his studies, perhaps on pain of death, albeit a very humane one. So with his aptitude, and especially his connections, he became a rising star in the legal and administrative world of his day, and was a member of the French king Charles IX’s court before he was thirty. He hob-nobbed with the aristocracy, finessing the then-toxic Catholic-Protestant skirmishes, and earned the respect of Charles’ successor, Henry III, as well as the future Henry IV, France’s greatest monarch.

Now when I look at Montaigne’s life and achievements, I think ‘how has it been with me?’ But seriously, what has always attracted me in Montaigne’s writing and outlook (exemplified also in Rousseau’s Reveries of a Solitary Walker – I had considered using a variant of Rousseau’s title for these essays, just altering one letter in the word ‘walker’), mutatis mutandis, is its discursiveness, its apparent willingness to follow a thought into all sorts of by-ways, so that you look up from the screen – in my case – and wonder, Jeez, how did I get here?

In any case, Montaigne’s marriage is a bit of a black box, and he has little to say of women in general. The upper aristocracy in those days tended not to marry for love of course, and his relations with his wife appear to have been cordial – if overly diluted cordial. There is at least one extant letter to her (Françoise de la Chassaigne by name, of doubtless unimpeachable pedigree), a short piece enclosing, for her own consolation, Plutarch’s consolatory epistle to his wife upon the death of their young daughter (Françoise ultimately gave birth to six daughters from two marriages, but only one lived to adulthood, and none outlived her). It’s a friendly if rather formal letter, and includes the line ‘Let us live, my wife, you and I, in the old French method’. I believe the French method may refer to cunnilingus, but perhaps not in this instance.

But this merry thought brings me back to bonobos. We’re emerging from millennia of patriarchy, in which men have been instructing their female inferiors how to behave. Plutarch, in the above-mentioned epistle, praises his wife for her womanly restraint in attending to her baby’s funeral – no over-the-top female caterwauling, an obvious sign of vainglorious insincerity etc etc. For some reason it all made me think of those bonobo females biting the penises of uppity males. And of the SCUM manifesto….

Written by stewart henderson

October 13, 2021 at 6:20 pm