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17_LanguageDisorders_6

17_LanguageDisorders_6 - First discussed by Carl Wernicke...

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Psychology 2: Introduction to Psychology Day 17 topics Finishing language (Monday) Broca’s aphasia Wernicke’s aphasia Common cause of aphasia Can non humans learn language? Nim Chimpsky Kanzi Can: Learn words and meanings Construct simple sentences Limited evidence for: Complex, generative sentences Some evidence for overlapping brain networks for language Neural structures for language Broca’s aphasia First discussed by Paul Broca 1861 – Society of Anthropology (Paris) Patient Leborgne (“Tan”) Broca’s aphasia Nina Dronkers CT imaging of Leborgne’s brain Broca’s aphasia: symptoms Non fluent output agrammatism speaking and writing Comprehension intact but complex syntax Impaired prosody videos
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Neural structures for language Wernicke’s aphasia
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Unformatted text preview: First discussed by Carl Wernicke Shortly after Broca’s discovery Not all language problems the same Wernicke’s aphasia: symptoms Poor comprehension Reading and writing impaired Fluent output “fluent but meaningless” “word salad” Prosody intact videos Blood flow in the brain 3 major cerebral arteries 80% of blood flows through Middle Cerebral Artery Stroke Three causes of stroke Thrombotic (build-up) Embolic (clot) Hemorrhagic (vessel ruptures) Summary Broca’s aphasia Non ‐ fluent speech Comprehension intact Wernicke’s aphasia Fluent but meaningless speech Impoverished comprehension Common cause of aphasia Stroke (3 types) Blockage of MCA...
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