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Related Experiment Videos

Neurologic function in the optimally healthy oldest old. Neuropsychological evaluation

D B Howieson1, L A Holm, J A Kaye

  • 1Portland Veterans Affairs Medical Center, OR 97207.

Neurology
|October 1, 1993
PubMed
Summary

Cognitive aging impacts visual-perceptual and constructional abilities more than memory in healthy older adults. Many cognitive functions remain well-preserved even in the oldest old, demonstrating resilience.

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Area of Science:

  • Gerontology
  • Neuropsychology
  • Cognitive Aging

Background:

  • Aging is associated with cognitive decline, but the extent varies among individuals.
  • Optimally healthy elderly individuals may exhibit preserved cognitive function.
  • Understanding cognitive changes in advanced age is crucial for maintaining quality of life.

Purpose of the Study:

  • To investigate the impact of aging on various cognitive functions in healthy elderly individuals.
  • To compare cognitive performance between very old (84+ years) and younger elderly groups.

Main Methods:

  • Utilized a battery of standardized neuropsychological tests.
  • Compared two groups of optimally healthy, functionally independent elderly volunteers.
  • One group aged 84 years and older, the other approximately 20 years younger.

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Main Results:

  • The most significant effects of aging were observed in visual-perceptual and constructional tasks.
  • Memory-related cognitive functions showed less decline compared to visual-perceptual and constructional abilities.
  • Many cognitive functions were found to be relatively well-preserved in the oldest old group.

Conclusions:

  • Cognitive aging disproportionately affects certain domains, particularly visual-perceptual and constructional abilities.
  • Healthy aging in the oldest old is characterized by remarkable preservation of many cognitive functions.
  • These findings highlight the heterogeneity of cognitive aging and the potential for resilience.