Related Experiment Video
Updated: May 14, 2026
08:16
Movement Retraining using Real-time Feedback of Performance
Published on: January 17, 2013
Both movement-end and task-end are critical for error feedback in visuomotor adaptation: a behavioral experiment
Takumi Ishikawa1, Yutaka Sakaguchi
1Department of Information Media Systems, University of Electro-Communications, Tokyo, Japan. g.burafuma@gmail.com
Plos One
|February 9, 2013
Summary
The brain efficiently uses error feedback for motor learning at both movement and task completion. This suggests distinct neural mechanisms support visuomotor adaptation at different stages of action.
Area of Science:
- Neuroscience
- Motor Learning
- Human Movement Science
Background:
- Understanding how the brain processes error information is crucial for motor learning and adaptation in dynamic environments.
- Previous studies suggest delayed visual feedback slows adaptation, implying error feedback is most effective at movement's end.
Purpose of the Study:
- To investigate whether error acceptance in visuomotor adaptation is tied to the end of a task or the end of an individual movement.
- To explore the neural mechanisms underlying error signal processing during motor adaptation.
Main Methods:
- A virtual shooting task was employed, requiring subjects to control wrist movements for accurate target acquisition.
- Visual feedback timing for impact position was manipulated to occur before or after the actual impact, with an additional cue condition.
Main Results:
- The magnitude of the aftereffect significantly differed based on feedback timing (p < 0.05).
- Two peaks in aftereffect were observed around movement-end and task-end, independent of a timing cue.
- A sharper task-end peak emerged when a timing cue was provided.
Conclusions:
- The brain effectively accepts error information at both movement-end and task-end.
- These findings suggest the existence of two distinct learning mechanisms contributing to visuomotor transformation.
