The Brain Can Be Split, but Not the Mind | EvolutionNews

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https://evolutionnews.org/2025/06/new-bo...-the-mind/

Quote:The Brain Can Be Split, but Not the Mind
by Michael Egnor and Denyse O'Leary

For centuries, we have believed that the brain is the organ of the mind and that consciousness arises wholly from the brain. With the brain cut in half, how would one hemisphere of the brain know what was going on in the other hemisphere? How could a person really act as a unified individual with the two halves of the brain disconnected?

[...]

Despite his severed brain, he moved his arms and legs normally, his vision was normal, and so was his speech. In fact, the only thing different about Sam — aside from the bandage swathing his head — was that he was no longer having major seizures. And he certainly seemed like a single, unified person … He knew that surgery had permanently split his brain into two separate brains, but the only effect he actually noticed was that his seizures were gone…
“Everything that irritates us about others can lead us to an understanding of ourselves.”
~ Carl Jung


(This post was last modified: 2025-06-05, 12:16 PM by Valmar. Edited 3 times in total.)
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(2025-06-04, 08:24 AM)Valmar Wrote: https://evolutionnews.org/2025/06/new-bo...-the-mind/

The Brain Can Be Split, but Not the Mind
by Michael Egnor and Denyse O'Leary

Seems that even the most severe form of hemispherectomy - the actual removal of either the left side or the right side of the brain (but not the deeper structures) - leaving just one lone brain hemisphere, allows people to get on with their lives... quite bizarre considering such an insult to the brain.

https://doi.org/10.1016/j.celrep.2019.10.067
https://doi.org/10.1073/pnas.2212936119

One might think it's almost holographic in it's effect. In the sense that cutting a hologram in half loses definition, but not the overall structure

https://www.youtube.com/watch?v=S8OEiTe8_Dc
We shall not cease from exploration
And the end of all our exploring 
Will be to arrive where we started
And know the place for the first time.
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