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Updated: Nov 1, 2025
Intracortical Inhibition Within the Primary Motor Cortex Can Be Modulated by Changing the Focus of Attention
Published on: September 11, 2017
Electrophysiological correlates underlying interference control in motor tasks
L Sperl1, G G Ambrus2, J M Kaufmann3
1Department for the Psychology of Human Movement and Sport, Institute of Sports Science, Faculty of Social and Behavioural Sciences, Friedrich Schiller University Jena, Germany; Department of General Psychology and Cognitive Neuroscience, Institute of Psychology, Faculty of Social and Behavioural Sciences, Friedrich Schiller University Jena, Germany.
Modifying automatic motor skills needs interference control. This study found that response inhibition, crucial for controlling interference, shows a distinct brainwave pattern (enhanced P3 component) during motor skill changes.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Motor Control
Background:
- Modifying automated motor skills necessitates effective interference control.
- Prepotent response inhibition is a key component of interference control in motor skills.
- Distinct electroencephalography (EEG) patterns, specifically the P3 component, are associated with response inhibition.
Purpose of the Study:
- To investigate the electrophysiological correlates of overcoming interference from automated motor skills.
- To determine if response inhibition's characteristic ERP pattern is present when modifying motor skills.
- To explore the role of response inhibition in motor skill adaptation.
Main Methods:
- Utilized a typing paradigm with a letter switch manipulation to induce interference.
- Recorded stimulus-locked event-related potentials (ERPs) during the typing task.
- Analyzed ERP components, focusing on the P3 amplitude and distribution.
Main Results:
- Interference trials, requiring overcoming motor automatisms, elicited an enhanced P3 component.
- The enhanced P3 component was observed across frontal, central, and parietal electrode sites.
- These findings align with ERP patterns previously associated with response inhibition.
Conclusions:
- The study provides initial insights into the neural basis of motor skill change.
- The results support the significant role of response inhibition in managing interference during motor skill modification.
- This research highlights the electrophysiological link between response inhibition and motor skill adaptation.
