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Motor apraxia in dementia

R Taylor1

  • 1Department of Clinical Neurosciences, Western General Hospital, Edinburgh, UK.

Perceptual and Motor Skills
|August 1, 1994
PubMed
Summary

Motor apraxia, a condition affecting movement, is common but mild in Alzheimer's and multi-infarct dementia. In Alzheimer's disease, it strongly relates to language issues, unlike in multi-infarct dementia.

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Area of Science:

  • Neurology
  • Neuropsychology

Background:

  • Motor apraxia is a frequently observed deficit in dementia.
  • Understanding apraxia patterns aids differential diagnosis in dementia subtypes.

Purpose of the Study:

  • To compare motor apraxia characteristics in Alzheimer's disease (AD) versus multi-infarct dementia (MID).
  • To explore correlations between motor apraxia and other cognitive impairments in AD and MID.

Main Methods:

  • Assessed motor apraxia in 25 patients with presumed AD and 23 with presumed MID.
  • Correlated apraxia severity with language and constructional praxis performance, and age.

Main Results:

  • Motor apraxia was common and typically mild in both AD and MID groups.
  • In AD, motor apraxia strongly correlated with language impairments.
  • In MID, the correlation pattern between motor apraxia and other impairments was less distinct.

Conclusions:

  • Motor apraxia patterns may offer insights into differentiating AD from MID.
  • Clinical assessment of dementia should consider motor apraxia, particularly its link to language deficits in AD.

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