Memory for visuospatial patterns in Alzheimer's disease

D. Grossi, J. T. Becker, C. Smith, L. Trojano

Research output: Contribution to journalArticlepeer-review

Abstract

Immediate memory for visuospatial information was assessed in patients affected by Alzheimer-type dementia but with unimpaired visuo-perceptual functions. Patients were given two tasks: one was a traditional visuospatial memory task (Corsi's block tapping test), the second explored specifically immediate memory for visuospatial patterns. The experiment was conducted in two parallel groups of patients in Italy and the United States, each with its own appropriate sample of normal control subjects. Results showed a specific deficit of visual working memory in demented patients, even in a task in which control subjects achieved error-free performance. These data are interpreted in the light of the Working Memory Model, and suggest that in dementia the functions of the Visuospatial Scratchpad, unlike the functions of the verbal subsystems, may be impaired.

Original languageEnglish
Pages (from-to)65-70
Number of pages6
JournalPsychological Medicine
Volume23
Issue number1
Publication statusPublished - 1993

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Psychology(all)
  • Clinical Psychology

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