NOVA: Secrets of the Mind
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The DVD begins with "phantom limb syndrome" - pain and sensation in missing body areas. Ramachandran's reasoning, confirmed through a CAT-scan, is that the brain has a map of various body areas, and that eg. the right arm and right face areas of the brain are adjacent. Thus, missing body areas can lead to interference by those associated brain areas trying to cope with stimulus deprivation - eg. "cross-wiring."
However, we are still left with the problem of treating pain in a body-part that no longer exists. Dr. Ramachandran found that placing the remaining opposite body part (eg. hand) into a mirror-box fools the mind into receiving feedback from the missing part and no longer sending ever-increasing (and unmet) signals that cause the pain.
Visual activities take up almost half the human brain. Dr. Ramachandran is confronted with an individual who can "see" (detect) movement but not recognize what the object is. His explanation is that there are two pathways from the eye in humans: one to the visual cortex that recognizes the object, and other to the brain stem that simply senses movement. Thus, when the visual cortex link is severed, one would only be able to recognize movement of a fly, but not the fly itself - perhaps the way a lizard views the world. Similarly, he says to driving - most of the time it is done without consciousness while the conscious brain is taken up in talking of other thinking.
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Most Recent Customer Reviews
A good video that covers the major content of Ramachandran's books 'Phantoms of the Brain' and 'A Brief Tour Of Human Consciou5ness'. Read morePublished 12 months ago by Joe
Outstanding visual mock ups of the inside of the brain related to each function covered. Great information. I recommend it.Published 15 months ago by Golden Bears
My son loved his Christmas present. He is a big fan of Science!!Published 16 months ago by Mary anaya
Excellent all the way around. I would buy from them again. Very satisfied overall.Published 21 months ago by William Riddel
I ordered this for my daughter who teaches Psychology and Sociology to high school students. She was pleased to receive it.Published 22 months ago by Grandma D