PSYC 271 Chapter Notes - Chapter 16: Norman Geschwind, Neuroimaging, Angular Gyrus

• School: Queen's University
• Department: Psychology
• Course: PSYC 271
• Professor: Monica Valsangkar-Smyth

Document Summary

Left and right cerebral hemispheres are totally separate apart from the cerebral commissures connecting them. Lateralization of function refers to the differences between them. Study of split-brain patients (sides separated by commissurotomy) is major focus. Another focus is language abilities in left hemisphere. Marc dax noticed in 1836 (his only experiment) that people with damage to only left hemisphere had language related struggles. Was not acknowledged because he thought that brain acted as a whole. Discovery of specific contributions of left-hemisphere damage to aphasia and apraxia. Da(cid:454)"s (cid:448)ie(cid:449) (cid:272)ha(cid:374)ged i(cid:374) (cid:1005)(cid:1012)(cid:1010)(cid:1005) (cid:449)he(cid:374) paul b(cid:396)o(cid:272)(cid:272)a (cid:396)epo(cid:396)ted fi(cid:374)di(cid:374)gs of t(cid:449)o aphasi(cid:272) patie(cid:374)ts. Aphasia is brain-damaged deficit in ability to produce or comprehend language. Both b(cid:396)o(cid:272)(cid:272)a"s patie(cid:374)ts had a left he(cid:373)isphe(cid:396)e lesio(cid:374) in frontal cortex around the primary motor area. After more tests brocca confirmed that all patients with same disability had damage to inferior prefrontal cortex of left hemisphere. I(cid:374) ea(cid:396)l(cid:455) (cid:1005)(cid:1013)(cid:1004)(cid:1004)"s a(cid:374)othe(cid:396) e(cid:454)a(cid:373)ple of cerebral lateralization of function demonstrated; hugo-