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Visuomotor control in continuous response time tasks across different age groups.

Guanmin Liu1, John S Y Chan, David D Chen

  • 11 Department of Psychology Tsinghua University, Beijing, China.

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Visuomotor control and choice response time (CRT) show distinct age-related changes. Computer experience impacts visuomotor control but not CRT, suggesting different underlying processes.

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Area of Science:

  • Cognitive Psychology
  • Human Development
  • Human-Computer Interaction

Background:

  • Age-related changes in cognitive functions are well-documented.
  • Understanding how visuomotor control and choice response time (CRT) evolve across the lifespan is crucial for human-computer interaction.
  • The influence of prior computer experience on these age-related trajectories requires further investigation.

Purpose of the Study:

  • To investigate shared age-related developmental trajectories of visuomotor control and choice response time (CRT).
  • To determine the role of prior computer experience in these control processes across different age groups.

Main Methods:

  • Participants across a wide age range (children, young adults, older adults) performed cursor pointing and CRT tasks using a computer mouse.
  • Visuomotor performance was assessed by accuracy and speed in cursor control tasks.
  • Choice response time (CRT) was measured by the time to respond to visual stimuli by clicking targets.

Main Results:

  • Visuomotor performance improved with age until young adulthood, then declined in older adults.
  • CRT performance positively correlated with age in children, plateauing in young adults.
  • Computer experience significantly influenced visuomotor control but not CRT.

Conclusions:

  • Visuomotor control and CRT exhibit different age-related developmental patterns.
  • Optimal CRT performance does not necessitate optimal visuomotor control.
  • Age-related cognitive and sensory declines may contribute to reduced CRT performance in older adults.