PSYC 311 Lecture Notes - Lecture 9: Two-Streams Hypothesis, Angular Gyrus, Temporal Lobe

• School: McGill University
• Department: Psychology
• Course: PSYC 311
• Professor: Michalakis Petrides

Document Summary

There is no damage to the perisylvian areas. There is odd damage around the perisylvian which essentially isolates it from the rest of the. Patient described by geschwind had attempted suicide via carbon monoxide poisoning. Essentially the opposite of conduction aphasia: shows no evidence of comprehension of languages, repetition is intact patient automatically repeats what the person tells her. Having your language regions intact is therefore useless if they can"t communicate with the rest of the brain to make sense of what is being said. Connects frontal to temporal lobe and passes close to the extreme capsule (discovered in mcgill. Essential in ventral stream of language one can therefore say that wernike"s aphasia is damage to the ventral stream and broca"s aphasia is damage in the dorsal stream. Mostly studied by gazzaniga, sperry and penfield. Cutting the cc to isolate both hemispheres. Intellectual capacities are fine at first glance, and patients without any further lesions talk and act normally.