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split-brain

[ split-breyn ]

adjective

  1. having, involving, or pertaining to a severed corpus callosum.


split brain

noun

  1. a brain in which the tracts connecting the two halves of the cerebral cortex have been surgically split or are missing from birth
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of split-brain1

First recorded in 1955–60
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Example Sentences

Although it gives a good conceptual footing for Erickson’s split-brain mystery, the whole severance thing doesn’t bear much inspection.

Last, consider what we know from split-brain work.

From Nature

Much of this knowledge is thanks to the work Gazzaniga did in the 1960s with Roger Sperry on split-brain patients who had their cerebral hemispheres surgically disconnected, leading to, among other discoveries, the revelation that the two sides are able to function independently, like two autonomous minds.

Though split-brain research is closer to consciousness research than is genomics, coming up with a theory of consciousness would be the greatest challenge Gazzaniga ever faced.

So this means that, for split-brain patients, the right and left hemispheres can be shown entirely different stimuli and make wholly independent responses.

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splitsplit cane