Abstract
This study aimed to explore the effect of human hand touch on motor learning. Participants pushed a ball toward
a target distance by elbow flexion. Thirty-eight healthy participants attempted the task as pre-test using a dominant
and non-dominant arm, and then the non-dominant arm was trained. The following day, a post-test was performed
using both arms. Participants were randomly divided into three groups based on training conditions: one group
received knowledge of results (KR group), Touch group received KR and the non-dominant ventral upper arm was
touched by another person, and Control group received no additional conditions. Performance progressively improved
during training session in the KR and Touch groups; however, only the Touch group showed post-test improvement.
This result suggested that a human hand touch facilitates motor learning.
