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Updated: Jun 22, 2026

A Modified Lean and Release Technique to Emphasize Response Inhibition and Action Selection in Reactive Balance

A Modified Lean and Release Technique to Emphasize Response Inhibition and Action Selection in Reactive Balance

Published on: March 19, 2020

Examining prepotent response suppression in aging: a kinematic analysis.

Kevin M Trewartha¹, Alejandro Endo, Karen Z H Li

¹Center for Research in Human Development, and Center for Studies in Behavioral Neurobiology, Department of Psychology, Concordia University, Montreal, Quebec, Canada. ktrewartha81@gmail.com

Psychology and Aging

|June 3, 2009

Summary

Older adults show impaired conflict detection, leading to slower motor responses and inability to adjust movement plans. This age-related cognitive inefficiency impacts motor control.

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Area of Science:

Cognitive Neuroscience
Motor Control
Human Aging

Background:

Age-related decline in executive functions, including conflict detection, is well-documented.
Understanding how cognitive changes affect motor performance is crucial for healthy aging.

Purpose of the Study:

To investigate the relationship between age-related differences in conflict detection and motor performance.
To examine how older adults' ability to detect and respond to cognitive conflicts impacts their motor planning and execution.

Main Methods:

Two experiments involving young adults (YAs) and older adults (OAs) performing a finger sequencing task.
Manipulation of critical and violation transitions to assess conflict detection.
Analysis of accuracy, reaction time, and kinematic data (movement planning and execution phases).

Main Results:

Older adults were significantly slower in responding to violations compared to young adults.
Young adults adjusted movement speed based on response predictability; older adults did not.
Older adults exhibited increased movement planning time and failed to modify execution speed.

Conclusions:

Older adults' difficulty in reprogramming movement plans contributes to poorer motor performance in cognitively demanding situations.
Age-related cognitive inefficiency, particularly in conflict detection and response inhibition, significantly impacts motor control.
Findings highlight the interplay between cognitive aging and motor execution deficits.