PSYCH 330 Lecture Notes - Receptive Aphasia, Angular Gyrus, Visual Cortex
27 Nov 2013
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Document Summary
Species-specific birdsongs, sung only by males, are learned from tutors, imitated and crystalized in the brain. Morpheme: smallest meaningful unit of a language. Prosody: rhythm and tone of a language. Signal variability: within speakers (coarticulation, across speakers (accents) Spatially selective attention: select for speech at a given location. What about a single speaker: temporally selective speaker. Better attention is related to better language skills. Damage to lower portion of left frontal lobe. Damage to posterior portion of the left superior temporal gyrus. In the 1960s, geschwind revived and elaborated wernicke"s ideas and came up with the predominant theory of language localization: the wernicke-geschwind model. Deficits result from breaking interconnected network of components. Speaking a heard word: 1) primary-auditory cortex 2) wernicke"s area 3) arcuate fasciculus (below the surface) 4) broca"s area 5) motor cortex. Speaking a written word: 1) primary visual cortex 2) angular gyrus 3) arcuate fasciculus 4) broca"s area 5) motor cortex.
