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15 Cards in this Set
- Front
- Back
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Characteristics of Aphasia
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word retrieval failues
errors in word selection impaired language production impaired language comprehension |
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Left perisylvian region is
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region critical for comprehension and production of language
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damage to extrasylvian region
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may isolate perisylvian language areas from other brain regions critical for semantics and volitional speech production
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Anomia
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word finding difficulties
evidence: pauses, hesitation, self correction, circumloucation, errors in word choice |
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paraphasias
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errors of word choice and sound substitution errors
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semantic paraphasias
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error of word selection (also called verbal paraphasias) ex. girl for boy
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phonemic paraphasias
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errors in sound selection
single sound error - boap for boat multiple sound errors may result in a nonword |
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aphasia is NOT
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impairment of intellect - processing of nonverbal info may be excellent, spatial skills may be quite good, sense of humor
memory impairment - personal memories and be unimpaired, new memories can be created |
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apahsia may be accompanied by
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cognitive impairment and reduced ability to learn new information
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what determines characteristics of aphasia
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location and extent of lesion
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aphasia syndromes are based on or characterized by
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naming, fluency, auditory comprehension, and repetition
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Nonfluent aphasia
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impaired speech prosody, halting speech
reduced utterance length articulatory struggle reduced grammatical complexity (mostly nouns, lacking functors) |
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fluent aphasias
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normal speech prosody (relative)
utterance length typically greater than 4 articulation relatively facile speech may sound empty - lack of content words, excess function words semantic and phonemic paraphasias are common |
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Frontal lesion results in what type of aphasia
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nonfluent - associated with anterior lesons, may or may not extend into posterior language areas
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Posterior lesions results in what type of aphasia
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fluent
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