Vestibular signals enhance the temporal precision of predictive movements to musical rhythms
Humans exhibit head movements synchronized with musical rhythms, frequently observed during instrument playing or dancing (e.g., hip hop). We conjectured that vestibular input from head movements could aid motor execution anticipatory of musical rhythms, known as sensorimotor synchronization (SMS). To examine this, we applied subthreshold galvanic vestibular stimulation (GVS) simultaneously with…
Research suggests that vestibular signals from head movements may enhance the accuracy of anticipating and synchronizing movements with musical rhythms. Healthy adults performed motor tasks in sync with beats of syncopated auditory rhythms. During certain trials, researchers administered subthreshold galvanic vestibular stimulation (GVS) just before each beat onset, triggering intense vestibular afferent firing.
This intervention led to a significant reduction in timing variability between predicted and actual movements compared to trials without GVS. However, a control experiment using a different GVS waveform design did not produce the same effect. The findings provide causal evidence of the vestibular system's role in synchronized movement to music and indicate that specific GVS waveform parameters could influence predictive motor execution in anticipation of upcoming auditory events.
Written by urgent.news from bioRxiv's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
