Related Experiment Video
Updated: Sep 14, 2025
10:39
The "Motor" in Implicit Motor Sequence Learning: A Foot-stepping Serial Reaction Time Task
Published on: May 3, 2018
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Developmental trajectory of neural activity underlying motor control differs by sequence complexity and motor stage
Thomas W Ward1, Jackson Derby2, Jake J Son3
1Institute for Human Neuroscience, Boys Town National Research Hospital, Boys Town, NE, USA; Center for Pediatric Brain Health, Boys Town National Research Hospital, Boys Town, NE, USA; Department of Pharmacology & Neuroscience, Creighton University, Omaha, NE, USA.
Neuroimage
|July 24, 2025
Summary
Brain development refines motor control through adolescence. Older youth show distinct patterns in beta and gamma brain waves during movement planning, suggesting improved executive functions enhance complex motor skills.
Area of Science:
- Neuroscience
- Developmental Neuroscience
- Cognitive Neuroscience
Background:
- Primary motor areas mature early, but complex motor control refines through early adulthood.
- Adolescent refinement of neural oscillations in higher-order regions aids executive functions for motor control.
- Neural dynamics between higher-order regions and primary motor cortices in youth are not well understood.
Purpose of the Study:
- Investigate developmental changes in neural oscillations during motor sequencing in healthy youth.
- Examine how sequence complexity and motor stage (planning vs. execution) influence oscillatory activity.
- Understand the neural basis of improving complex motor control during adolescence.
Main Methods:
- Magnetoencephalography (MEG) recorded from 68 healthy youth (10-17 years old) during a motor sequencing task.
- Sensor-level oscillatory activity analyzed and source-reconstructed using a beamformer.
- Voxel-wise ANCOVAs applied to whole-brain beta and gamma oscillatory power maps to assess developmental effects.
Main Results:
- Beta activity decreased with age in prefrontal cortices during complex movement planning.
- Older youth exhibited stronger beta activity in posterior regions during planning across conditions.
- Gamma activity increased with age in occipital cortex and decreased in temporal cortex.
Conclusions:
- Functional refinement of association cortices underlies improvements in motor control.
- Enhanced attentional and inhibitory control during motor plan formulation contribute to skill development.
- Age-related changes in beta and gamma oscillations reflect maturation of neural networks supporting motor control.
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