Adaptive Strategies in Expertise: Optimizing Movement Trajectory for Perception Accuracy

This study examines the traces of movement trajectories for perception accuracy in expert performance, focusing on table tennis. Twenty participants (10 experts and 10 novices) performed self-generated movements for extended haptic accuracy tasks, and their performance was analyzed for absolute error and movement trajectory. The results reveal that the expert participants exhibited more movement entropy than novices, strategically sacrificing trajectory predictability to enhance haptic perception accuracy. These findings reveal the adaptive strategies used by experts to optimize performance and provide insights into the balance between movement entropy and perception accuracy in skilled motor control.