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Excerpts from A Brief Tour of Human Consciousness

Comments on Excerpts from A Brief Tour of Human Consciousness

libertygrl
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Posted 05/09/12 - 10:17 AM:
Subject: Excerpts from A Brief Tour of Human Consciousness
"First, prosopognosia, or face blindness. When a structure called the fusiform gyrus in the temporal lobes is damaged on both sides of the brain, the patient can no longer recognize people's faces. The patient can still read a book, so is not blind, and is not psychotic or mentally disturbed in any way but is simply no longer able to recognize people just by looking at the face."
libertygrl
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Posted 05/09/12 - 10:20 AM:

"The first step we must take toward understanding perception is to forget the idea of images in the brain and think instead of transforms or symbolic representations of objects and events in the external world. Just as little squiggles of ink called writing can symbolize or represent something they don't physically resemble, so the action of nerve cells in the brain, the patterns of firing, represent objects and events in the external world. Neuroscientists are like cryptographers trying to crack an alien code, in this case the code used by the nervous system to represent the external world."
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