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[Speech changes in dementia].

T Benke1, B Andree, M Hittmair

  • 1Klinik für Neurologie Innsbruck.

Fortschritte Der Neurologie-Psychiatrie
|June 1, 1990
PubMed
Summary
This summary is machine-generated.

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Language deficits in dementia, particularly Alzheimer's disease, involve lexical, comprehension, and pragmatic decline. Differentiating dementia from aphasia requires comprehensive language and cognitive assessments.

Area of Science:

  • Neurolinguistics
  • Cognitive Neurology

Background:

  • Dementia, a neurodegenerative disease, significantly impacts communication abilities.
  • Alzheimer's disease (AD) and subcortical dementias present distinct language and speech profiles.

Observation:

  • Cortical dementia, like AD, shows progressive lexical, comprehension, and pragmatic deficits, preserving syntax and phonology.
  • Subcortical dementia often features dysarthria as a primary symptom, with linguistic impairments emerging later.

Findings:

  • The communication profile in AD resembles certain aphasias but affects a broader range of functions.
  • Impaired semantic memory is a key factor contributing to communication deficits in dementia.
  • Standard aphasia assessments are insufficient for evaluating dementia-related language impairments.

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Implications:

  • Comprehensive language assessments, including spontaneous speech, naming, and metalinguistic tasks, are crucial for diagnosing dementia.
  • Early language assessment can be vital for the early detection of dementia.
  • Distinguishing between dementia and aphasia necessitates thorough neuropsychological evaluation.