I'm not guilty - but my brain is

A leading neuroscientist caused a sensation by claiming crimes are the result of brain abnormalities. Laura Spinney investigates a slanging match between scientists and philosophers Thursday August 12, 2004 The Guardian Last month, the case against Patrizia Reggiani was reopened in Italy. She is serving a 26-year jail sentence for having ordered the killing of her husband, the fashion supremo Maurizio Gucci. At the first trial in 1998, expert witnesses dismissed her lawyers' claims that surgery for a brain tumour had changed her personality. The new trial has been granted because her lawyers believe that brain imaging techniques developed since then will reveal damage that was previously undetectable, and strengthen their case for an acquittal.

The idea that someone should not be punished if their abnormal neural make-up leaves them no choice but to break the law is contentious but not new. However, one prominent neuroscientist has sparked a storm by picking it up and turning it round. Writing in the Frankfurter Allgemeine Zeitung, one of Germany's leading newspapers, Wolf Singer argued that crime itself should be taken as evidence of brain abnormality, even if no abnormality can be found, and criminals treated as incapable of having acted otherwise.

His claims have brought howls of outrage from academics across the sciences and humanities. But Singer counters that the idea is nothing but a natural extension of the thesis that free will is an illusion - a theory that he feels is supported by decades of work in neuroscience.
The head of the Max Planck Institute for Brain Research in Frankfurt, Singer is best known for his work on the so-called binding problem of perception. This is the conundrum of how we perceive an object as an integrated whole, when we know that the brain processes the various elements of it - colours, angles, and so on - separately. His group was among the first to suggest, and then demonstrate, that the answer lay in the synchronisation encoding the separate features. He has since extrapolated those ideas to the process by which we make decisions, which has led him to question whether we are really the free-acting agents we imagine ourselves to be.

His argument goes like this. Neurobiology tells us that there is no centre in the brain where actions are planned and decisions made. Decisions emerge from a collection of dynamic systems that run in parallel and are underpinned by nerve cells that talk to each other - the brain.
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He argues that the human brain has to be complex to compute all the myriad variables that influence each decision we make - genetic factors, socially learned factors, momentary triggers including commands and wishes, to name a few. And because it considers most of those variables at a subconscious level, we are not aware of all the factors that make us behave in a certain way, just as we are not aware of all the elements of an object that are processed separately by our visual brains. As humans, however, we are able to extract some of those factors and make them the focus of attention; that is, render them conscious. And with our behaviour, as with the world we see, we yearn to build a coherent picture. So we might justify our decisions in ways that have nothing to do with our real, subconscious motivations.
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In response to the accusation that he is rehashing old ideas, Singer points out that the German newspaper debate got under way without him, and he was merely responding. So the more interesting question, perhaps, is why the public is interested again now. One reason, he thinks, is that people look at their societies, see that the totalitarian ones failed, and realise that the most complex are self-organising and impossible to steer or control. "You free yourself from authorities, including the gods, but you find yourself part of an evolving system," he says. "Now you realise that you don't really have influence on the dynamics of the systems in which you are. I think this gives a feeling of helplessness."

OMG. This is seriously EXACTLY what I have had to battle with and thought over more than anything this past year.

Read the entire article at:

http://education.guardian.co.uk/higher/sciences/story/0,,1281010,00.html