Implicit and explicit memory in Alzheimer's disease and Parkinson's disease

M. W. Bondi, A. W. Kaszniak

Research output: Contribution to journalArticle

197 Scopus citations

Abstract

Several tasks examined implicit and explicit memory in demographically matched samples of Alzheimer's (AD) and Parkinson's disease (PD) patients, and healthy elderly subjects. A fragmented picture test, word stem-completion repetition priming, and a pursuit-rotor tracking task, followed by explicit memory tests, were given. AD patients were impaired on all explicit tests and on word stem-completion priming, but were intact on pursuit-rotor tracking and the skill learning (SL) component of the fragmented pictures test. PD patients were significantly better than AD patients on all explicit memory tests, but were selectively impaired on the SL component of the fragmented pictures test. Finally, a mirror-reading test was given to the PD patients and control subjects, with no significant differences found in performances between the two groups. Results are discussed in terms of hypothetical cognitive processes and brain circuits underlying different implicit and explicit memory domains.

Original languageEnglish (US)
Pages (from-to)339-358
Number of pages20
JournalJournal of Clinical and Experimental Neuropsychology
Volume13
Issue number2
DOIs
StatePublished - Jan 1 1991

ASJC Scopus subject areas

  • Clinical Psychology
  • Neurology
  • Clinical Neurology

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