How might you feel with two separate brain hemispheres, both of which controlled your thought and action but o
How might you feel with two separate brain hemispheres, both of which controlled your thought and action but one of which dominated your consciousness and speech? How might that affect your sense of self, as one indivisible person?
I am trying to help a friend out... Its been a few years and I am trying to find my book to help here... any thought would be wonderful..
Megan and friend Sarah
Answer:
Actually, there is a surgical procedure for people with severe seizures that cuts the communicating fibers between the left and right hemispheres of the brain. It's called a corpus callosotomy.
After recovery from the surgery itself, as long as there were no complications, people function normally. Special testing can reveal that the right and left sides of the brain aren't "talking" to each other any more, but they appear and function quite well.
Here's a link - http://www.answers.com/topic/corpus-call...
..No one knows more about this subject than Michael S. Gazzaniga. He and Roger Sperry performed the first callosumotomy, Sperry receiving the Nobel Prize. Gazzaniga has written many fascinating books related to consciousness and how the hemispheres contribute to that. His text, The Cognitive Neurosciences III: Third Edition (2004) is the final word on this.
http://www.amazon.com/cognitive-neurosci...
People who have had the corpus callosum severed to treat epillesy are not completely normal. Yes, both sides of the brain still do their jobs, but they no longer inform each other about the results of their thinking. Both sides contribute to consciousness, but it's like experiencing two inputs instead of one coordinated input.
For example, blindfolded, if a person holds a familiar object in his left hand (which informs the right hemisphere), he feels he knows what it is and can describe it but he can't name it. If he holds an object in his right hand (which informs the left hemisphere) he can name it but he can't describe it. The same is true for objects perceived in the left visual field or right visual field.
In effect, the person has a limited mental disability. To find out more, read Gazzaniga's text.
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I am trying to help a friend out... Its been a few years and I am trying to find my book to help here... any thought would be wonderful..
Megan and friend Sarah
Answer:
Actually, there is a surgical procedure for people with severe seizures that cuts the communicating fibers between the left and right hemispheres of the brain. It's called a corpus callosotomy.
After recovery from the surgery itself, as long as there were no complications, people function normally. Special testing can reveal that the right and left sides of the brain aren't "talking" to each other any more, but they appear and function quite well.
Here's a link - http://www.answers.com/topic/corpus-call...
..No one knows more about this subject than Michael S. Gazzaniga. He and Roger Sperry performed the first callosumotomy, Sperry receiving the Nobel Prize. Gazzaniga has written many fascinating books related to consciousness and how the hemispheres contribute to that. His text, The Cognitive Neurosciences III: Third Edition (2004) is the final word on this.
http://www.amazon.com/cognitive-neurosci...
People who have had the corpus callosum severed to treat epillesy are not completely normal. Yes, both sides of the brain still do their jobs, but they no longer inform each other about the results of their thinking. Both sides contribute to consciousness, but it's like experiencing two inputs instead of one coordinated input.
For example, blindfolded, if a person holds a familiar object in his left hand (which informs the right hemisphere), he feels he knows what it is and can describe it but he can't name it. If he holds an object in his right hand (which informs the left hemisphere) he can name it but he can't describe it. The same is true for objects perceived in the left visual field or right visual field.
In effect, the person has a limited mental disability. To find out more, read Gazzaniga's text.
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