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laterality


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The asymmetry in functions between the two cerebral hemispheres, including handedness (1) and language functions, the left hemisphere being dominant for language in approximately 90 per cent of people—over 95 per cent of right-handers and about 70 per cent of left-handers. Laterality of functions has been studied via cognitive deficits in people with unilateral brain damage and electrical brain stimulation, and through other specialized research techniques: dichotic listening studies, dichhaptic techniques, divided visual field studies, split-brain preparations, EEG studies, examinations of evoked potentials, and brain imaging techniques. See also Broca's area, Wada test, Wernicke's area.

Subjects: Psychology.


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