Music, clicks, and their imaginations favor differently the event-based timing component for rhythmic movements

Area of Science:

• Neuroscience
• Motor Control
• Auditory Perception

Background:

• The distinction between event-based and emergent timing mechanisms is crucial for understanding neural processes.
• Previous research explored auditory stimuli's effect on rhythmic motor performance accuracy and precision.

Purpose of the Study:

• To investigate how simple (clicks) and complex (music) auditory stimuli, and their imagination, influence timing mechanisms in repetitive motor tasks.
• To expand on prior studies by including new data and analyzing the impact of auditory stimuli on rhythmic motor control.

Main Methods:

• Analysis of repetitive isochronous wrist's flexion-extensions (IWFEs) with minimized sensory input.
• Utilized windowed (lag one) autocorrelation (wγ(1)), a statistical method for distinguishing between event-based and emergent timing.

Main Results:

• Paced auditory information and its imagination promote the engagement of a clock-like neural process.
• Music, unlike clicks, does not elicit event-based timing.
• Music does not counteract the natural shift of wγ(1) towards positive values with increasing movement frequency.

Conclusions:

• Auditory stimuli and their mental representation influence the neural timing mechanisms underlying rhythmic movements.
• The type of auditory stimulus (music vs. clicks) differentially affects timing strategies, with music favoring emergent timing over event-based timing.