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Language - Slide 1 Language and Communication Slide 2...

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Slide 1 Language and Communication ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 2 Speech production and comprehension Lateralization of language Speech production Speech comprehension ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 3 Lateralization of language Left hemisphere dominance – Majority of language production and comprehension – Damage to the left hemisphere results in severe language impairments ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________
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Slide 4 Lateralization of language Right hemisphere language functions – Right hemisphere is involved in: – Damage to the right hemisphere impairs: ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 5 Neural control of language Evidence from brain lesion patients Imaging studies ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 6 Speech production Posterior association areas - subject content of language – Current perception Memories of past experiences ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________
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Slide 7 Speech production Frontal lobe areas - conversion of thoughts into speech – Planning and motor production of speech – Left anterior insular cortex – Apraxia ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 8 Speech production Broca’s area – Specialized region of the inferior left motor association region – Broca’s aphasia ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 9 Broca’s aphasia Characterized by: – Labored and nonfluent language – Loss of function words – Reliance on content words Major disruptions of Broca’s aphasia: – Agrammatism – Anomia – Difficulty with articulation ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________
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Slide 10 Broca’s aphasia Language comprehension in Broca’s aphasia – Comprehension is better than production of speech – Comprehension is disrupted by impaired grammatical abilities ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 11 Speech comprehension Wernicke’s area & posterior language area – Left mid-posterior superior temporal gyrus & surrounding region – Wernicke’s area and PLA analyze spoken language ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ ___________________________________ Slide 12
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