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The "Motor" in Implicit Motor Sequence Learning: A Foot-stepping Serial Reaction Time Task

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Published on: May 3, 2018

Motor Imagery Task Alters Dynamics of Human Body Posture.

Fatemeh Delavari¹, Seyyed Mohammad Reza Hashemi Golpayegani¹, Mohammad Ali Ahmadi-Pajouh¹

¹Biomedical Engineering Department, Amirkabir University of Technology, Tehran, Iran.

Physiotherapy Research International : the Journal for Researchers and Clinicians in Physical Therapy

|July 28, 2025

Summary

Imagining movements (motor imagery) significantly alters postural control by affecting center of pressure dynamics. This supports its use in rehabilitation for enhancing motor circuits and stability.

Keywords:

balance center of pressure motor imagery nonlinear dynamics postural control

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Last Updated: May 7, 2026

The "Motor" in Implicit Motor Sequence Learning: A Foot-stepping Serial Reaction Time Task

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Published on: May 3, 2018

Experimental Methods to Study Human Postural Control

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Published on: September 11, 2019

Author Spotlight: Enhancing Neurorehabilitation Through EEG, Motor Imagery, and Virtual Reality

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Published on: May 10, 2024

Area of Science:

Neuroscience
Biomechanics
Rehabilitation Science

Background:

Motor imagery (MI) is increasingly recognized for its potential in rehabilitation and sports.
Understanding MI's impact on postural control mechanisms is crucial for optimizing its application.

Purpose of the Study:

Investigate the immediate effects of MI on center of pressure (COP) dynamics.
Develop a mathematical model to characterize MI-induced changes in postural stability.

Main Methods:

Twenty-four healthy adults underwent four standing conditions: eyes open, eyes closed, kinesthetic mediolateral MI, and anteroposterior MI.
Center of pressure (COP) data were recorded and analyzed.
A mathematical model was employed to describe nonlinear COP dynamics during MI.

Main Results:

Motor imagery tasks significantly altered COP path length compared to normal standing.
COP changes aligned directionally with the imagined movements.
Specific directional changes in COP Root Mean Square (RMS) were observed during mediolateral MI.

Conclusions:

Findings support the psycho-neuromuscular theory, suggesting MI activates motor circuits at low intensity.
MI can induce specific postural adjustments, highlighting its therapeutic potential for improving postural control.
Further research is needed to explore mechanisms and validate findings across diverse populations.