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Neuropsychological functioning and sleep patterns in the elderly.

L B Hayward1, A Mant, E A Eyland

  • 1Neurosciences Unit, Selby Centre, Shenton Park, WA.

The Medical Journal of Australia
|July 6, 1992
PubMed
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Sleep disturbances in the elderly, specifically nocturnal awakenings and daytime naps, were investigated for links to cognitive function. Findings indicate that poor night sleep is not associated with neuropsychological deficits in this population.

Area of Science:

  • Gerontology
  • Neuropsychology
  • Sleep Medicine

Background:

  • Sleep-wake disturbances are common in the elderly, including increased nocturnal awakenings, earlier waking times, and more daytime naps.
  • The relationship between these sleep changes and cognitive function in older adults requires further investigation.

Purpose of the Study:

  • To determine if reported sleep-wake disturbances in the elderly are associated with neuropsychological dysfunction.
  • To explore correlations between specific sleep patterns and cognitive abilities.

Main Methods:

  • A sample of 124 retirement village residents underwent sleep pattern interviews and neuropsychological assessments.
  • Sleep variables (night sleep, day sleep, duration, waking time) were analyzed against neuropsychological factors (general ability, memory, motor, cerebral efficiency).

Related Experiment Videos

  • Correlation analysis included age, mood, and physical/passive activity participation.

    • Main Results:

    • No significant correlation was found between "night sleep" problems and neuropsychological factor scores.
    • "Day sleep" (daytime napping) showed a correlation only with "cerebral efficiency".
    • Age was correlated with "memory" and "motor" functions, with physical activity also linked to motor function.

    Conclusions:

    • Reported difficulties with night sleep are not associated with neuropsychological deficits in a non-clinic elderly population.
    • Daytime napping may be linked to cerebral efficiency, warranting further research.