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  3. Task-dependent Cortico-spinal Coupling In The Delta Band During Movement Execution And Inhibitory Control.
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  3. Task-dependent Cortico-spinal Coupling In The Delta Band During Movement Execution And Inhibitory Control.

Related Experiment Video

Intracortical Inhibition Within the Primary Motor Cortex Can Be Modulated by Changing the Focus of Attention
09:48

Intracortical Inhibition Within the Primary Motor Cortex Can Be Modulated by Changing the Focus of Attention

Published on: September 11, 2017

Task-Dependent Cortico-Spinal Coupling in the Delta Band During Movement Execution and Inhibitory Control.

Huan Wen, Yucun Zhong, Mingyu Wang

    IEEE Transactions on Bio-Medical Engineering
    |June 17, 2026

    View abstract on PubMed

    Summary
    This summary is machine-generated.

    Delta-band cortico-spinal coupling is crucial for rapid movement execution, unlike high-frequency activity which relates to force maintenance. This finding offers a new neurophysiological indicator for motor control assessment.

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    Corticospinal Excitability Modulation During Action Observation

    Published on: December 31, 2013

    Related Experiment Videos

    Intracortical Inhibition Within the Primary Motor Cortex Can Be Modulated by Changing the Focus of Attention
    09:48

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    Published on: September 11, 2017

    Online Transcranial Magnetic Stimulation Protocol for Measuring Cortical Physiology Associated with Response Inhibition
    08:55

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    Published on: February 8, 2018

    Corticospinal Excitability Modulation During Action Observation
    12:33

    Corticospinal Excitability Modulation During Action Observation

    Published on: December 31, 2013

    Area of Science:

    • Neuroscience
    • Motor Control
    • Human Physiology

    Background:

    • Cortico-spinal interactions are fundamental to voluntary movement.
    • Understanding frequency-specific brain-muscle communication is key to deciphering motor control mechanisms.

    Purpose of the Study:

    • To investigate cortico-spinal interactions during movement execution ('Go') and inhibition ('NoGo').
    • To examine frequency-specific coupling between cortical activity (EEG) and spinal motor neuron discharges (CST).

    Main Methods:

    • Recorded high-density surface electromyography (HD-sEMG) from forearm muscles in 16 healthy adults.
    • Estimated cumulative spike trains (CST) using spatial spike detection (SSD) from HD-sEMG.
    • Analyzed EEG and CST signals in the time-frequency domain, assessing couplings via coherence and cross-correlation during task phases.

    Main Results:

    • A significant δ-band coupling between EEG and CST was observed during movement execution ('Go'), but not during inhibition ('NoGo').
    • This δ-band effect was most prominent during movement execution and localized to the contralateral sensorimotor cortex.
    • High-frequency coherence showed lateralization but no significant differences between 'Go' and 'NoGo' conditions across time windows.

    Conclusions:

    • δ-band cortico-spinal coupling is specifically associated with rapid movement execution.
    • High-frequency activities primarily reflect force maintenance rather than movement execution or inhibition.
    • Combining EEG and SSD-based CST estimation provides a neurophysiological marker for assessing cortico-spinal tract integrity in motor tasks.