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15 Cards in this Set

  • Front
  • Back
Characteristics of Aphasia
word retrieval failues
errors in word selection
impaired language production
impaired language comprehension
Left perisylvian region is
region critical for comprehension and production of language
damage to extrasylvian region
may isolate perisylvian language areas from other brain regions critical for semantics and volitional speech production
word finding difficulties
evidence: pauses, hesitation, self correction, circumloucation, errors in word choice
errors of word choice and sound substitution errors
semantic paraphasias
error of word selection (also called verbal paraphasias) ex. girl for boy
phonemic paraphasias
errors in sound selection
single sound error - boap for boat
multiple sound errors may result in a nonword
aphasia is NOT
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
apahsia may be accompanied by
cognitive impairment and reduced ability to learn new information
what determines characteristics of aphasia
location and extent of lesion
aphasia syndromes are based on or characterized by
naming, fluency, auditory comprehension, and repetition
Nonfluent aphasia
impaired speech prosody, halting speech
reduced utterance length
articulatory struggle
reduced grammatical complexity (mostly nouns, lacking functors)
fluent aphasias
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
Frontal lesion results in what type of aphasia
nonfluent - associated with anterior lesons, may or may not extend into posterior language areas
Posterior lesions results in what type of aphasia