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Updated: May 25, 2025

Corticospinal Excitability Modulation During Action Observation
Published on: December 31, 2013
Neurobiological mechanisms underlying coordinated actions in joint action
Wenting Yu1, Binn Zhang1, Yanan Li2
1School of Psychology, Shanghai University of Sport, Shanghai, China.
Joint action coordination relies on neural mechanisms. Brain imaging reveals motor cortex and dorsolateral prefrontal cortex activity during synchronized jumping, suggesting a role in action simulation.
Area of Science:
- Neuroscience
- Cognitive Science
- Human Motor Control
Background:
- Interpersonal action coordination is vital in daily life.
- Behavioral dynamics suggest action simulation influences joint actions.
- Functional near-infrared spectroscopy (fNIRS) is used to study neural mechanisms in joint action.
Purpose of the Study:
- To investigate the neural underpinnings of coordinated actions in joint action tasks.
- To explore the role of action simulation in interpersonal coordination.
Main Methods:
- A modified joint jumping task was employed.
- Participants jumped varying distances without direct observation of their partner.
- Cerebral hemodynamic data and behavioral parameters were collected using fNIRS.
Main Results:
- The motor-related cortex showed increased oxygenated hemoglobin when jump distances varied, compared to equal jumps.
- The dorsolateral prefrontal cortex exhibited higher oxygenated hemoglobin when a participant needed to jump shorter distances.
Conclusions:
- The motor-related cortex and dorsolateral prefrontal cortex are implicated in action simulation during joint action.
- These brain regions may play a direct role in coordinating actions with a partner.
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