“Unlike other aspects of cognitive function, emotions have never been readily confinable to one hemisphere.”

— Roger Wolcott Sperry

Nobel lecture (1981)
Context: Unlike other aspects of cognitive function, emotions have never been readily confinable to one hemisphere. Though generated by lateralized input, the emotional effects tend to spread rapidly to involve both hemispheres, apparently through crossed fiber systems in the undivided brain stem.

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American neuroscientist 1913–1994

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