Consciousness: not split in split-brain patients (General)

by David Turell @, Tuesday, September 26, 2017, 16:53 (272 days ago) @ David Turell

A comment by the research scientist who produced the result in the prior post:

https://aeon.co/ideas/when-you-split-the-brain-do-you-split-the-person?utm_source=Aeon+...

"In so-called ‘split-brain’ patients, the corpus callosum – the highway for communication between the left and the right cerebral hemispheres – is surgically severed to halt otherwise intractable epilepsy.

"The operation is effective in stopping epilepsy; if a neural firestorm starts in one hemisphere, the isolation ensures that it does not spread to the other half. But without the corpus callosum the hemispheres have virtually no means of exchanging information.

***

"We’ve got to admit that split-brain patients feel and behave normally. If a split-brain patient walks into the room, you would not notice anything unusual. And they themselves claim to be completely unchanged, other than being rid of terrible epileptic seizures. If the person was really split, this wouldn’t be true.

***

"Based on these findings, we have proposed a new model of the split-brain syndrome. When you split the brain, you still end up with only one person. However, this person experiences two streams of visual information, one for each visual field. And that person is unable to integrate the two streams. It is as if he watches an out-of-sync movie, but not with the audio and video out of sync. Rather, the two unsynced streams are both video.

"And there’s more. While the previous model provided strong evidence for materialism (split the brain, split the person), the current understanding seems to only deepen the mystery of consciousness. You split the brain into two halves, and yet you still have only one person.
How does a brain, consisting of many modules, create just one person? And, how do split-brainers operate as one when these parts are not even talking to each other?"

Comment: More proof that consciousness has no true basis in the idea that it is being produced by the brain. The brain receives the mechanism of consciousness and uses it.


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