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Related Experiment Video

Updated: Mar 22, 2026

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Aging affects postural tracking of complex visual motion cues.

H Sotirakis1, A Kyvelidou2, L Mademli3

  • 1Motor Control and Learning Laboratory, Department of Physical Education and Sport Science, Aristotle University of Thessaloniki, 546 24, Thessaloniki, Greece.

Experimental Brain Research
|April 30, 2016
PubMed
Summary
This summary is machine-generated.

Older adults show reduced ability to track complex visual motion with posture, impacting perception-action coupling. Gaze tracking remains stable, suggesting potential for visual motion training to improve motor integration in aging.

Keywords:
AgingComplexityGazePostureVisuo-motor integration

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Area of Science:

  • Neuroscience
  • Human Movement Science
  • Gerontology

Background:

  • Perception-action coupling is vital for daily activities.
  • Visual motion tracking is crucial for maintaining balance and coordination.
  • Aging can impair visuo-motor processing and postural control.

Purpose of the Study:

  • To compare how young and older adults track visual motion cues of varying complexity.
  • To investigate the impact of target complexity on postural and gaze tracking.
  • To assess age-related differences in visuo-motor integration during motion tracking.

Main Methods:

  • Participants (young and older adults) tracked simple, chaotic, and random visual motion patterns.
  • Postural sway and gaze movements were recorded during 120-second trials.
  • Measures included spectral coherence, gain, phase, and cross-approximate entropy (cross-ApEn).

Main Results:

  • Postural tracking coherence decreased with increasing target complexity.
  • Older adults exhibited lower postural coherence than young adults when tracking chaotic motion.
  • Gaze tracking coherence was unaffected by complexity or age, but lower cross-ApEn indicated synchronous gaze-target relationships for chaotic motion.

Conclusions:

  • Visuo-motor processing of complex motion is limited, particularly in older adults.
  • Aging leads to less efficient use of body sway dynamics for motion tracking.
  • Complex visual motion stimuli may enhance visuo-motor integration and postural variability in older adults.