Motor Timing and Covariation with Time Perception: Investigating the Role of Handedness

Area of Science:

• Neuroscience
• Cognitive Psychology
• Human Motor Control

Background:

• Time is integral to human behavior, influencing actions from predicting collisions to enjoying music.
• Motor timing and time perception are distinct yet interconnected cognitive functions.
• Handedness is associated with differing brain processing mechanisms for cognitive-motor control.

Purpose of the Study:

• To investigate the regulation and covariation of motor timing and time perception.
• To examine these functions in both left- and right-handers.
• To understand the role of individual variations in time experience and behavior.

Main Methods:

• Utilized a combination of tasks assessing timed motor responses and time interval perception.
• Compared performance between left- and right-handed individuals.
• Analyzed the relationship between movement-driven timing and perceived time intervals.

Main Results:

• A positive association was found between movement-driven timing and perceived interval duration when individuals adopted a preferred tempo.
• This suggests a cross-domain coupling of motor timing and time perception when an intrinsic timescale is present.
• Handedness modulated motor timing under externally-driven conditions requiring cognitive input.

Conclusions:

• Individual variations in domain-general and domain-specific cognitive organization significantly influence time prediction, perception, and experience.
• Action expertise is relevant for performing time-based motor activities.
• These findings impact our understanding of cognition and behavior through the lens of time processing.