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From Sound to Movement: Mapping the Neural Mechanisms of Auditory-Motor Entrainment and Synchronization
Marija Pranjić1,2, Thenille Braun Janzen3, Nikolina Vukšić4
1Music and Health Science Research Collaboratory, University of Toronto, Toronto, ON M5S 1C5, Canada.
Brain Sciences
|November 27, 2024
Summary
Auditory-motor synchronization involves widespread brain networks, including the supplementary motor area and basal ganglia for timing, and the cerebellum for complex rhythms. These insights aid rhythm-based therapies for neurological disorders.
Area of Science:
- Neuroscience
- Motor Control
- Auditory Processing
Background:
- Humans naturally synchronize actions to auditory stimuli via rhythmic entrainment.
- Rhythmic entrainment benefits adults with neurological movement disorders.
- Neural mechanisms of auditory-motor synchronization require further elucidation.
Purpose of the Study:
- To systematically map and synthesize research on the neural correlates of auditory-motor entrainment and synchronization.
Main Methods:
- Scoping review following PRISMA-ScR guidelines.
- Systematic search across MEDLINE, Embase, PsycInfo, and Scopus databases.
- Inclusion of studies published between 2013 and 2023.
Main Results:
- Synthesized 22 studies based on neuroimaging modality.
- Converging evidence implicates bilateral cortical and subcortical networks (SMA, premotor cortex, VLPFC, basal ganglia, cerebellum).
- SMA and basal ganglia are crucial for beat-based timing; cerebellum for complex rhythm processing and external beat synchronization.
- Self-paced tapping involves additional prefrontal cortex and basal ganglia activation.
- Movement rate and music type modulate EEG alpha and beta bands.
Conclusions:
- Findings highlight the neural basis of auditory-motor synchronization.
- Discussion includes clinical implications for rhythm-based therapies.
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