The Research On Eye-movement, Reaction Time And Anticipation During The Judgement Of Table Tennis Stroke Route

Successful performance in interceptive tasks depends upon the acquisition of visual information about the approaching object. An athlete in table tennis who looks in the right place at the correct time is more likely to predict accurately the ball's future trajectory and time of arrival.Based on "expert-novice" paradigm, this study analyzed the anticipation, reaction time and eye-movement during the execution of table tennis forehand stroke. And do statistical testing on reaction time, veracity and eye-movement between the 16 experts (undergraduate student which has national level II in table tennis) and 30 novice (undergraduate student) participants.Connecting an additional reaction box to the eye-movement system, we measured eye-movement and reaction time simultaneously. During the experiment, when the two group participants saw the different videos and judged the stroke direction, we recorded their reaction time, veracity, duration and location of fixation and analyzed the discrepancy.The results indicated:1. The stroke direction has impacts on the reaction time and veracity. The reaction time is shortest and the veracity is highest when the participants see the video of stroke toward the left of the table on the participant's side. The reaction time is longest and the veracity is lowest for the video of stroke toward the right of the table.2. The skilled participant has higher veracity of judgment on the direction of the stroke than less skilled. But their reaction times do not have significant difference. The skilled participant has shorter reaction time and higher veracity on the video with more visual information and has longer reaction time and still higher veracity on the video with less visual information. They prefer the higher veracity with the loss of reaction time when facing the video of less information.3. The within-treatments variability of the professional participants is smaller than the non-professional participants.4. There are significant differences of duration and location of fixation between the two group participants. The professional participants pay more attention on the information of stroke direction. The professional participants care more about the position of competitor's chest (shoulder), wrist, and racket. The professional participants can search more useful visual information than non-professional participants.