Class3_Brain

Class3_Brain - Brain and Language Class 3, Week 1 S....

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Unformatted text preview: Brain and Language Class 3, Week 1 S. Shademan Housecleaning HW 1 is due in section this week Todays reading: chapter 2 Read chapter 3 in preparation of Tuesdays lecture PTE numbers will be available in section this week Human Brain Composed of cerebral hemispheres Contralateral Localization Different human cognitive abilities are localized in specific parts of the brain Lateralization (aka localization) Left Brain Right Brain Evidence for Lateralization Language disorders (e.g., aphasias) Brain imaging techniques (e.g., PET, fMRI) Surgical and experimental techniques Aphasia A language disorder Results from a focal lesion to the brain due to disease or trauma Generally involves a selective impairment language, i.e., not total language loss Different aspects of language are affected depending on the location of the damage Wernickes Aphasia Brocas Aphasia Brocas and Wernickes Areas Brocas Aphasia Mainly a syntactic disorder Speech is halted and labored Language is agrammatic: lacks function words & affixes Brocas Aphasia Word finding difficulties Comprehension: fine for simple structures impaired for complex sentences (e.g., passives, relative clauses) Reading: fine for content words (open class) impaired for function words (closed class) Brocas Aphasia PATIENT: Yes ... uh ... Monday ... Dad and Peter Hogan and Dad ... uh ... hospital ... and uh ... Wednesday ... Wednesday ... nine o'clock and uh Thursday ... ten o'clock uh doctors ... two two ... and doctors and uh ... teeth ... yeah. And a doctor ... and girl ... and girl and gums and I PSYCH: Could you tell me what you've been doing in the hospital? PATIENT: Yes, sure. Me go, er, uh, P.T. (physical therapy) nine o'cot, speech, ... two times ... read ... r ... ripe ... uh ... rike ... uh ... write ... practice ... get ... ting ... better The Cookie Thief Wernickes Aphasia Mainly a semantic disorder Also known as fluent aphasia Fluent speech with good intonation Wernickes Aphasia Difficulty in naming objects Language is semantically incoherent Lots of neologisms, i.e., made up words Wernickes Aphasia "Well, the only thing I can say is madder or modder fish, sudden fishing sewed into the accident to miss in the purdles "This is a very good beautiful day is a good day,...
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This note was uploaded on 10/07/2010 for the course POLI SCI 40 taught by Professor Sch during the Spring '10 term at UCLA.

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Class3_Brain - Brain and Language Class 3, Week 1 S....

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