PSYC 311 Lecture Notes - Lecture 6: Middle Cerebral Artery, Insular Cortex, Intermediate Area
15 Jun 2016
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Document Summary
Broca"s apahsia is caused by blockage of the upper division of the left middle cerebral artery seems to produce much milder language de cit initially mutism. Patient then appear to have croca"s aphasia but recovers quite rapidly to have simply an apraxia of speech (prob of articulation, coordination of orofacial musculature to produce words suggest that broca"s area is a higher motor control. Wada test (esam) exames common lesion in patients w speech apraxia. Nds damage to anterior insula in dominant hem (important for speech production) Rh: 96% are left hem dominant, 4% right hem dominant (the 96% is biased because ppl selected for the test are only atypical rh patients, actually percentage could be 98-99%) Dr. scoville removed mtls bilaterally of patient h. m. and he couldnt form new memory. Pen eld sent dr. brenda milner to work w h. m. This started the study of neural basis of memory. Phd of donald hebb (psyc professor) tested pen eld s patients.
