PSYCH261 Lecture Notes - Lecture 10: Arcuate Fasciculus, Cerebrovascular Disease, Parietal Lobe
10 Dec 2018
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Document Summary
Language assessment: name, repeat, fluency, comprehension, grammar, reading/writing, gesture, inflection, fluency relates whether your speech has normal rise and falls of expression of normal language. Functional localization: more lateralized in one particular hemisphere left, audition temporal lobe, expressive language anterior/frontal part of brain, repeating info has to get from the comprehension component to expressive components of brain. Arcuate fasciculus is one of the pathways of white matter tracts. These regions are important for decoding sounds & encoding words and motor actions. (surrounded by ideational areas. Study of aphasia used to be the study of strokes: broca history of aphasia but also cerebral vascular disease (strokes), stroke in left posterior hemisphere is probably cause of aphasic syndrome, stroke are seldom, clean lesions. Disconnection syndromes: mri scans able to show strokes. Mri sensitive to water molecules: hypothesis: white matter tracts (have connections between different brain regions) the orientation of the nerve cells & nerve structures will be in one basic direction.
