Accessible Requires Authentication Published by De Gruyter March 1, 2013

Analysis of tremor in motor learning task

Piotr Walecki, Wojciech Lasoń, Marek Kunc and Edward J. Gorzelańczyk


Hand-eye coordination is required in many skilled tasks. Individual differences affect the performance of people at work and leisure, for example, during assembly jobs or sports. The aim of this study was to determine whether motor learning can change the physiological action of hand tremor. Tremor is a repetitive and stereotyped movement, with regular frequency and amplitude, but there are different types of tremors with pattern variation. The results were calculated by participants’ time-on and time-off the target, the average distance from the center of the target, and the frequency of oscillatory movement of a cursor (tremor). The results of this study indicate a statistically significant (p<0.05) influence of effect of task repetition on improvement of motor control and reduction of a high-amplitude tremor and an increase of a low-amplitude tremor. The assessed individuals achieved more than 50% better outcomes of a hand-eye coordination task in the final trials when compared with the initial trials. The dynamics of motor learning tend to rise, with a steady level of a 1-h interval between trials.

Corresponding author: Piotr Walecki, Jagiellonian University Medical College, Krakow, Poland

Received: 2012-12-18
Revised: 2013-1-25
Accepted: 2013-1-28
Published Online: 2013-03-01
Published in Print: 2013-03-01

©2013 by Walter de Gruyter Berlin Boston