The second in a series of Gifford Lectures by Professor Michael
Gazzaniga. Recorded 13 October, 2009 at the Playfair Library Hall, the
University of Edinburgh.
organised in such a fashion that very little of the processing, which is to say
neural work, goes on in our conscious minds.
Any simple act, such as pointing
to your nose, involves forming the desire to touch your nose, planning a motor
response, gathering information about the location of your nose, calculating in
a flash if you want to bring attention to your nose and so on.
information is gathered and processed and leads to the desired action, and yet
little or none of it is done consciously.
Even more daunting is the fact that
how the brain accomplishes such a simple task is utterly beyond scientific
understanding at this point in time.
While textbooks are full of knowledge
about the specific neurons involved - the areas in the brain that are active
during such specific actions and even areas known to be active with intention to
act - no one knows how it actually works.