When the amnestic mild cognitive impairment disappears: Characterisation of the memory profile

Research output: Contribution to journalArticle

Abstract

Background/Objectives: Subjects affected by mild cognitive impairment (MCI) may improve during the observation period. This is the first study investigating qualitative features of memory deficits in subjects affected by reversible MCI [reversible cognitive impairment (RCI)]. Methods: Baseline cognitive and memory performances of 18 subjects affected by amnestic MCI who had normalized cognitive performances at follow-ups were compared with those of 76 amnestic MCI subjects who still showed impaired cognitive performances at the 24-month follow-up (MCI) and with those of a group of 87 matched control subjects (normal controls). Results: Compared with normal controls the memory deficit in the MCI group affected all aspects of explicit long-term memory functioning; in the RCI group, instead, the memory deficit only affected the free recall of verbal material, particularly when the encoding could be improved by the use of semantic strategies. Conclusions: These results are consistent with the view that the memory deficit in the MCI group is due to a very early degenerative pathology; in the RCI group, instead, a transitory reduction of processing resources, resulting a poor encoding of incoming material, is likely at the origin of the reversible memory disorder.

Original languageEnglish
Pages (from-to)109-116
Number of pages8
JournalCognitive and Behavioral Neurology
Volume22
Issue number2
DOIs
Publication statusPublished - Jun 2009

Keywords

  • Alzheimer disease
  • Memory
  • Mild cognitive impairment
  • Neuropsychology
  • Preclinical dementia

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Psychiatry and Mental health
  • Cognitive Neuroscience
  • Medicine(all)

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