Ideomotor apraxia in early Alzheimer's disease: time and accuracy measures

Brain Cogn. 1998 Nov;38(2):220-33. doi: 10.1006/brcg.1998.1029.

Abstract

Twenty-six Alzheimer's disease (AD) and 42 healthy control (NC) subjects were evaluated with neuropsychological and apraxia batteries. ADs produced a greater range of error types, but did not differ from NCs in their most frequent error types. Hand sequencing ability contributed significantly to AD praxis with no predictors for NCs. Although groups did not differ in gesture time, the AD group had significantly longer response latencies for periods prior to gesture execution and the effect was prominent for transitive tasks and nondominant hand use. Results illustrate the sensitivity of timing measures in identifying abnormal praxis in early stages of AD.

Publication types

  • Comparative Study

MeSH terms

  • Alzheimer Disease / complications*
  • Apraxias / diagnosis
  • Apraxias / etiology*
  • Gestures*
  • Humans
  • Neuropsychological Tests
  • Time Factors