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Related Experiment Videos

Aging and the restructuring of precued movements.

G E Stelmach1, N L Goggin, P C Amrhein

  • 1Motor Behavior Laboratory, University of Wisconsin, Madison 53706.

Psychology and Aging
|June 1, 1988
PubMed
Summary

Elderly individuals exhibit slower motor response planning and execution compared to younger adults. Aging significantly impacts movement parameter adjustments, particularly for movement extent preparation.

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Area of Science:

  • Neuroscience
  • Human Movement Science
  • Gerontology

Background:

  • Motor response planning and execution are crucial for daily activities.
  • Aging is associated with changes in cognitive and motor functions.
  • Understanding age-related differences in motor control is important for interventions.

Purpose of the Study:

  • To investigate age-related differences in the time required to restructure a planned motor response.
  • To examine how aging affects the preparation of different movement parameters (e.g., arm, direction, extent).

Main Methods:

  • A precue paradigm was employed with young and elderly participants performing an aiming task.
  • Trials involved either no change or a required change in movement parameters.
  • Reaction times (RTs), movement times, and errors were measured.

Main Results:

  • Elderly subjects demonstrated slower RTs, movement times, and increased errors across conditions.
  • Aging proportionally increased overall RTs, independent of movement plan restructuring.
  • Elderly individuals showed slower preparation for short movements compared to long movements, unlike young adults.

Conclusions:

  • Advanced age alters processing rates for movement-plan restructuring concerning arm and direction.
  • Operations related to movement extent preparation are more significantly affected by aging.
  • These findings highlight specific age-related changes in motor control and planning.

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