The Brain: Structures and Functions

AP Psychology· difficulty 4/5

In split-brain patients (corpus callosum severed), an object flashed only to the left visual field is

  • A

    Processed by the left hemisphere; the patient names it normally

  • B

    Processed by both hemispheres equally

  • C

    Processed by the right hemisphere; the patient cannot verbally name it

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  • D

    Not processed at all

Explanation

Sperry/Gazzaniga: left visual field projects to right hemisphere. With callosum cut, the right hemisphere can point/select but cannot transfer to the language-dominant left hemisphere → no verbal report.

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