Naming consistency in Alzheimer's disease
Victor W. et al. Henderson
Bok Engelsk 1990
| Utgitt | 1990
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| Omfang | 9 s.
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| Utgave | Kopi
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| Opplysninger | Although lexical semantic deficits are postulated to play a prominent role in the anomia of Alzheimer's disease, it is unclear whether the primary disturbance is one of lexical access or one of lexical semantic loss. response consistency on a naming task is one means of evaluating the underlying source of naming impairment. Access dysfunction usually implies variable word-finding difficulty, while a theory of lexical losspredicts that many word names would be consistently unvailable. Noineteen Alzheimer's disease patients were administered a visual confrontation naming task (The Boston Naming Test) on two occasions 6 months apart. Eighty percent of errors occured consistently at both times; only 20% of errors occured on only one occasion. response consistency occured significantly more often than expected under the assumption of no response consistency. Findings support the hypothesis that anomia in Alzheimer's disease is in part due to loss of lexical semantic information.
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| Emner |
