Sunday, December 20, 2009

Autism as a dual disorder

Autism is a complex neurological disorder of varying degrees of severity. Among its characteristics is a difficulty in social interaction and in reading the minds and intentions of others.

But social interaction involves at least two people, and in thinking about autism I wonder whether we should not also consider the way in which apparently normal people are also “impaired” in interacting with frankly autistic people.

I was very frustrated over a year ago when dealing with a lady who seemed remarkably ill equipped at social interaction, and seemed to lack all intuition. Communication with her was very difficult and other, apparently normal, individuals who came into contact with her shared my experience. I wondered, as did others, whether she is autistic.

It gradually dawned on me that the difficulty was two-way, that I in return was very ill-equipped to communicate with her, because I had no mental representation of a person from whom one could elicit no anger, or sadness, or joy or approval, or disapproval, or indeed any emotion, whatever one said or did.

Hence I suggest that, if we consider autism spectrum disorder to be, in part at least, a social disorder, we must envisage the possibility that the “disorder” is shared and that it is partly also a "disorder" in the individual with whom the interaction is occurring, and who has no mental framework to deal with this apparent difficulty of reading the mind of an autistic individual or interacting with them. It may be worth considering whether, in dealing with autism, we should not also try to generate rules that will make our interaction with autistic individuals more easy. This may even have the beneficial effect of easing their problems.

It is of course possible to argue that we would be able to learn how to deal with this lack of social interaction more readily than individuals with an autistic spectrum disorder. My experience with this lady has taught me otherwise. I found it very difficult to read into her mind and thus interact with her constructively even in spite of the long time during which I had to interact with her.

Hence I think that autism spectrum disorder should not be considered as confined to individuals but to social interactions in which both sides, the autistic and the apparently normal, are deficient in communicative skills, with each side lacking the mental representation of how to interact with the other.

At any rate, this is something worth thinking about.

How reliable is Wikipedia?

Wikipedia is a splendid idea. I often consult it, as do millions of others. But it seems that reliance on it alone can be dangerous.

I recently consulted Wikipedia about the phenomenon known as “Blindsight”. This is a condition in which subjects who become blind through damage to their primary visual cortex can apparently discriminate with high accuracy objects presented to their blind fields but are totally unaware that anything has been presented there. They are just able to discriminate, for example, whether a visual stimulus moves to the left or to the right but deny having seen anything.

That, at any rate is one version.

There are some, amongst whom I include myself, who have doubts about the phenomenon. I will not detail here the articles that I and others have written to express these doubts. But anyone consulting the article on “Blindsight” in Wikipedia would not even realize that this is a very controversial topic. They would instead have the impression that it is a well established and agreed-upon phenomenon.

But that is far from being so. It is a very controversial phenomenon. But the Wikipedia article doesn't give any hint that it is, or refer to any articles that have questioned the phenomenon. I hasten to add that I do not know who has written the article and have not bothered to look it up.

I suppose, and hope, that no scholar relies exclusively on Wikipedia or indeed on any single source. The danger comes more from, and to, those who, not being conversant with the literature on the subject, assume the validity of what is written and propagate it unquestioningly.

Blindsight is not the only article in Wikipedia that is misleading. There are others, some of them self-serving articles. It is of course the essence of good scholarship to allude to other findings or interpretations, even ones with which the author may disagree. Apparently, when some people think they can get away with it, they will not do so.This is perhaps less likely to happen in peer-reviewed articles.

On the other hand, unlike articles published in peer-reviewed journals, Wikipedia gives us the opportunity of modifying the articles and eradicating the errors. I am myself dis-inclined to do so. It would be too time consuming. It is sufficient to be aware of the danger in order to avoid the consequences. So I will continue to use and enjoy Wikipedia while being aware of its shortcomings.

The Acropolis Museum and the Parthenon Marbles

I recently visited the new museum at the Acropolis in Athens.

One reason for building a museum at the Acropolis is to house the Parthenon Marbles, which Lord Elgin, British Ambassador to the Ottoman Empire, bought from the Turks when Greece was under Ottoman rule and transported to England. They are now on beautiful display in the Duveen Galleries at the British Museum in London. Greece wants these marbles back because they constitute a very important heritage for the Greeks – as indeed they do for all of humanity.

I want here to comment on only one aspect, which is the way these marbles are intended to be displayed in the new Athens museum, should they every be returned.

It is very poorly thought out and an utter failure.

We would find it intolerable if, when listening to music, another piece of music were to be played.

It is similarly true that, in vision, too many distractors (in the form of too many other visual stimuli) interfere with our ability to appreciate what we are looking at. There are indeed studies of the phenomenon of “visual crowding”, which show a degraded ability to perceive visual stimuli when they are surrounded by other stimuli. This phenomenon has been more usually studied with peripheral vision but it is applicable to central vision as well.

Back to the Acropolis Museum. The background against which they intend to display the Parthenon Marbles, if they are returned, is so cluttered with other displays as to be totally distracting. Somehow, our visual field is invaded by so much else that it cannot concentrate on one item.

And this distracts from, and diminishes, the beauty and the inspiration that the Parthenon marbles provide.

This cluttering is actually a problem with many museums, especially ones that do not have enough space for all they want to exhibit.

The recently refurbished Museum of Modern Art in New York is splendid not only for its rich collection, but for the remarkable way in which they are displayed, with enough space around most paintings to enable the viewer to concentrate on each without the crowding that distracts.

Perhaps there is a minimum distance that should separate one exhibit from another. Perhaps it is worth establishing some general principles regarding this through psychophysical studies in vision. Indeed those specialized in psychophysics have actually come up with some rules. Perhaps architects and interior designers should have the humility to learn a little about visual science and visual psychophysics before they embark on such grandiose schemes.

I do not know who designed the Acropolis Museum. And I do not know who the curator is. All I know is that these precious marbles, which, though born in Greece, belong to all of us, are a huge inspiration and deserve to stand in isolation, without the distracting effects of other stones, as indeed they currently are in the British Museum.

Whether the marbles should be returned to Greece or remain in Britain will, ultimately, be a political decision. There is no doubt that a large number of lawyers will be involved in deciding whether the terms under which Lord Elgin transported the marbles to England were legitimate or not. I am not able to comment on these.

But I can comment on the aesthetic side and say that, on aesthetic grounds alone, the marbles should stay in London where they can be freely viewed by all and where they continue to provide a dazzling inspiration for millions.

If a time comes when a better place for them can be found than their current house in the splendid Duveen Galleries in London, then the question of their re-patriation can be re-visited.

Sunday, November 15, 2009

Beauty without the brain?

This week-end, I watched a very interesting programme on BBC2 TV, entitled “What is Beauty”.

The question is naturally interesting, and it is a subject that I am very interested in. And I learned a great deal from watching this programme, which covered a vast expanse, from cave art, through Michelangelo, to Matisse and Gaugin, and contemporary art, to give just a few examples. Its presenter derived some 10 principles which define, according to him, the characteristics of what constitutes beauty – among them selection, surprise, spontaneity, animation, simplicity, surroundings, etc.

I am not in a position to comment on whether these are the characteristics of beauty or of the beautiful, though I strongly agree with him when he says that all art is abstraction. The presenter, beginning the programme by asking “what is beauty?”, ended it by saying that art is beautiful because of what it is and because of how it is done. But, in a programme addressing the question of what is beauty through the visual medium alone, there was not a word about the perceiving organ, the brain. Indeed, the word brain occurred only once throughout the programme, in a somewhat indifferent reference, when the presenter spoke about the idealization “simmering in Michelangelo’s brain”.

The flaw in the programme, for me, was the title: “What is Beauty?” I wonder: can one really answer or even approach such a question today without even the vaguest of references to the brain? I personally do not think so. When we speak of surprise, or pleasure, or surroundings, or unity, or abstraction, we can actually say quite a lot – even in our present state of imperfect knowledge – about brain activity in relation to these experiences. The programme would have been excellent had it not been for the title. Just as any discussion about what is beauty would be sterile without copious reference to the debates about this question in the humanities, so any discussion about what beauty is is very incomplete without at least a lip service to the brain. In that sense, what promised to be a powerful programme ended up being somewhat disappointing.

Cortical de-activation and ethics classes at business schools

On October 28, “The Financial Times” carried a column, apparently without any sense of irony, entitled “Is it possible to teach ethics to business school students?”

The answer is, of course, “Yes, it is”.

But the more important question is, “Will it influence their behaviour?”

I think not, especially where big money is involved.

Imagine a business school student, from one of the leading business schools and with a good background in ethics and moral philosophy, confronted with a situation in which he or she (more likely, he) can make billions, even if it entails suffering among hundreds of small savers? And why restrict ourselves to billions? The same would be true if the gains to be made are in the millions or the hundreds of thousands or the thousands, or even the hundreds. Will there be anything to stop him? Will his ethical education be of any value or practical use?



Evidence over the past two decades shows that it will not. I restrict myself to more recent evidence because it has been better exposed.

The question rather should be: “Is it possible for business school students, or better still those making money, to use any knowledge derived from their ethical studies to regulate their behaviour when confronted with the prospect of unheard of riches?”

I think not.

But why should this be so?

The reason lies, I have suggested in these columns, in the de-activation of judgmental areas of the cerebral cortex, including the frontal lobes, when greed holds sway. This is still conjectural and, to my knowledge, has not been properly studied by neurobiologists. But we have evidence from another brain system, the one regulating love. Evidence has shown that there is a strong cortical de-activation of judgmental areas when we are in love.

Hence it is useless to tell a person in love that their lover is not worthy for one reason or another. Their de-activated cortex cannot accept that conclusion.

Likewise, it is useless telling someone about to make billions that their conduct is unethical. I conjecture that, faced with greed, their de-activated cortex cannot accept that conclusion. And so, all these ethical courses will be found to be totally useless.

Notice that, in both cases, the judgmental de-activation is highly selective. Those who are passionately in love can exercise judgment in matters not relating to their love affairs, and those who are greedy for money can nevertheless exercise their ethical standards in matters not relating to their greed.

It may indeed be interesting to conduct an experiment in which the extent of cortical de-activation is plotted against the extent of gains to be made from greedy behaviour. I wouldn't be surprised if there is a straightforward, proportional, relationship. There is, after all, such a relationship between extent of hate experience and activity in certain areas of the brain.

I myself do not consider greed as either bad or good, but only as a biological reality that we are faced with.

And it is with biological realities that economists and business schools, as well as government regulators, should deal.

Tuesday, November 10, 2009

Neurobiology of fictional characters in literature

The Egyptian writer, Alaa Al-Aswany, author of the very successful The Yacoubian Building, was interviewed in Harriet Gilbert’s World Book Club this morning on the World Service of the BBC. His answers to the questions were brief and succinct, indicating a man who has thought deeply about things and thus able to respond briefly and with assurance.

I was especially struck by his comment on the creation of fictional characters, which raises an interesting neurobiological problem, though I cannot figure out a good way to study it.

Al-Asnawy said that, in creating his fictional characters, a moment comes when they acquire their independence and he is no longer in control of them; he merely describes their actions. He put in brief and forceful words what I have often considered, in a somewhat vague way, to be true of some of the great characters in world literature, that the characters are independent of the author, though I never envisaged that there comes a moment, during the writing of the novel, when they acquire their independence. Think of Anna Karenina, or Emma Bovary, or of Julien Sorel in Scarlet and Black. Oddly enough, I have never thought in the same way of Shakespeare, because the power and beauty of his language somehow always reminds me that it is Shakespeare who is writing.

One of the fundamental operations of the brain leads to a capacity to distinguish between self and not self. Indeed, Immanuel Kant thought that this is an a priori with which we are born and into which all experienced is read. I presume that there must be a radical shift in the brain of an author when he or she realizes that the character is no longer their creation but has acquired an independence which they can only describe – a moment when the character becomes detached from the self and becomes the non-self, and when the author knows that the character he or she is creating is separate from them.

I am not sure that I am communicating this well; I am sure that Al-Asnawy would be able to describe it better than me. Nor have I figured out a good way of studying it. But that it must involve a potentially describable shift in neural activity seems very likely. And it shows the power of the arts to point the way to interesting experiments in neurobiology and neuroesthetics.

Friday, October 23, 2009

The day dreams of economic "scientists"

The early morning news today was full of cackle about how Britain will later in the day be deemed to be "technically" out of the economic recession. The economists thought that the figures, when released later in the day, would show that the economy had expanded. Not by much, mind you, just 0.2%. But to the ever optimistic economists, who actually seem to know very little, this meant that we could now see light at the end of the tunnel...

But, within hours the light at the end of the tunnel turned out to be a train coming in the opposite direction!!!

For when the figures were released a few hours later, it turned out that the UK economy had "unexpectedly" shrunk by 0.4% between July and September, making this recession the longest since records began!

It says it all.

The portentous ignorance of the economists and the financial advisers is crushing. And it goes well, as ignorance commonly does, with their optimism.

Every single move, whatever its nature, is hailed as a sign of recovery. When house prices do not fall at the rate they had been falling at previously, this is a sign - to the economists - that house prices are on the rise again! When the pound gains a cent against the dollar, this is a sign - to them - that the recession is over.

And they call themselves scientists. What a joke. What I fail to understand, is why they remain so arrogant.

The BBC carried an interesting report a few months back, about how, in India, people are consulting astrologers on where to put their money. They could actually do worse. They could consult economists!

The correspondent himself went to two astrologers. If my memory serves me right, one of them told him to put his money into something when some star was equidistant from another, while another told him exactly the reverse.

Our economic scientists do not fare much better. But I bet that they charge a good deal more than the astrologers.

Apart from making fools of themselves and giving us all the occasion to laugh at them, their optimism raises a serious neurobiological point.

Alan Greenspan predicted that there will be another economic recession, because humans have an extraordinary capacity for optimism when the going is good.

But it seems that humans, or at least economists, have an extraordinary capacity for optimism, period! Regardless of whether the going is good or bad.