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Related Experiment Videos

Differences in performance of young and old monkeys on a visuospatial memory task

J R Anderson1, M Anthouard, M de Monte

  • 1Laboratoire de Psychophysiologie, Université Louis Pasteur, Strasbourg, France.

The Quarterly Journal of Experimental Psychology. B, Comparative and Physiological Psychology
|November 1, 1993
PubMed
Summary

Older stumptailed macaques (Macaca arctoides) exhibit impaired visuospatial working memory, making more errors and showing less diverse strategies than younger macaques on a memory task.

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Area of Science:

  • Primatology
  • Cognitive Neuroscience
  • Animal Behavior

Background:

  • Visuospatial working memory is crucial for navigating environments and making decisions.
  • Age-related cognitive decline is observed across many species, but specific impacts on memory strategies require further investigation.

Purpose of the Study:

  • To compare the visuospatial working memory performance between young and old stumptailed macaques (Macaca arctoides).
  • To identify age-related differences in error patterns and response strategies during a memory task.

Main Methods:

  • Two groups of stumptailed macaques (young and old) were assessed on a task involving a 15-door array with hidden food rewards.
  • Performance was measured by the number of errors (revisiting previously opened doors) and error diversity across sessions.

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Main Results:

  • Both age groups improved performance over sessions and successfully retrieved most rewards.
  • Older macaques consistently made significantly more errors than younger macaques, particularly later in each session.
  • Older macaques demonstrated less diverse error patterns, suggesting distinct cognitive strategies.

Conclusions:

  • Aging in stumptailed macaques is associated with deficits in visuospatial working memory.
  • Older individuals employ different, potentially less flexible, error-correction strategies compared to younger counterparts.