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13 Cards in this Set
- Front
- Back
Episodic memory: Good recognition
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Information has been retained and can be accessed if retrieval mechanisms are supported
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Episodic memory: Poor recognition
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impaired retention of information, external prompts do not facilitate retrieval
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Wernickes aphasia
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structure is correct but no content words
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Brocas aphasia
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highly meaningful but syntax (grammar) is lost
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Semantic dementia
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Progressive disease, generalised impairment throughout the brain. - Bilateral degeneration of the inferlateral and anterior TLs (brain regions housing semantic mem). Relative sparing of MTL structures. -Early spread to ventromedial frontal lobes.
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Strengths of Semantic dementia
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-Normal WM (verb & noverb) -Preserved antergrade ep mem (verb & noverb) - May have poor retro ep mem. -Phonology and syntax intact. - No topographical disorientations (sont loose way in fam setting) - No visuo-spatial deficits - Intact org and planning skills
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Deficits in Semantic dementia
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Anomia (most common-intitial) unable to remember correct word for an object. Followed by impaired c=word comprehension; semantic paraphasias (chair 4 table), circumlocutions (helicopter; 'thing that spins in air'). omissions (I don't know)
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Semantic memory: category dissociation
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patients can have a loss of knowledge within a discrete category of semantic mem.
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Modality dissociation
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Intact sem in the verbal modality but impaired sem in vis mod (n vice versa)
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Ribotshaw argues for a t........ g............... in amnestic patients . That is ..........past remembered better than .........past.
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temporal, gradient, distant, recent
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MTL lesions- impairment in auto memory w/ ............. temporal gradient
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reverse
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FL lesions- impairment in ....... men without ............ ...........
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auto, temporal, gradient
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Assessment of semantic memory
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word definitions, pictures and drawings & naming words, famous faces test, category fluency (animals), colour selection, sorting words.
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