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Related Experiment Videos

Memory function in normal aging.

R C Petersen1, G Smith, E Kokmen

  • 1Department of Neurology, Mayo Clinic, Rochester, MN 55905.

Neurology
|February 1, 1992
PubMed
Summary

Memory learning declines with age in healthy older adults, but the ability to recall information after a delay remains stable. This research provides a baseline for assessing normal memory function and identifying potential cognitive decline.

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Area of Science:

  • Neuroscience
  • Gerontology
  • Cognitive Psychology

Background:

  • Aging affects cognitive functions, including memory.
  • Distinguishing normal age-related memory changes from early dementia is crucial for timely intervention.
  • Understanding memory performance in cognitively normal older adults is essential for establishing normative data.

Purpose of the Study:

  • To evaluate memory function, specifically learning and delayed recall, in a cohort of cognitively normal older adults.
  • To determine the impact of age on different components of memory.
  • To establish a baseline for assessing memory performance in clinical settings.

Main Methods:

  • Recruited 161 community-dwelling, cognitively normal individuals aged 62-100 years.
  • Administered the Free and Cued Selective Reminding Test and Rey Auditory Verbal Learning Test.

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  • Assessed learning (acquisition) and delayed recall (forgetting) as measures of memory function.

    • Main Results:

    • Learning or acquisition performance showed a uniform decline with increasing age, independent of education level.
    • Delayed recall or forgetting remained stable across age groups when accounting for initial learning.
    • These findings differentiate age-related memory changes from potential early signs of dementia.

    Conclusions:

    • Memory acquisition declines linearly with age in healthy older adults.
    • Delayed recall is relatively preserved in aging, suggesting resilience in certain memory processes.
    • These results provide a clinical benchmark for evaluating memory function and identifying potential cognitive impairment.