The Research On Characteristics Of Eye-movement Of Different Level Tennis Player In Process Of Serving Placement Judgment

Tennis is a sport of complex reaction.The ball may coming by different ways. They must predict the ball’s future trajectory and time of arrival correctly if they want to make the right decision.look the right place at the correct time f the tennis plays want to make right decision, so it is important to get the information about competitor’s batting and the most information is depend on visual.An athlete in 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 buy experimental method.This study do statistical testing on reaction time, veracity and eye-movement betweenthel4experts(under graduate student which has national level Ⅱ in tennis)and14novice(undergraduate student)participants. The results indicated:1Veracity and reaction timeFrom the result of accuracy and reaction time we can found that the professional standards impacts on the veracity but not impacts the reaction time. The high-level groups is Significant difference with the low-level groups when see the video. The veracity of high-level groups is higher than the low-level groups but there is no difference between the two groups. The conclusion can illustrate that the information which high-level groups searched is more valuable and more accurate.2Time on lookzoneFrom the result of time in lookzone we can found that the high-level groups spend more time on observing competitor in order to collect more information. The low-level groups, however, spend more time on observing the scene.3Quantity and percentage of fixation in lookzoneFrom the result of quantity and percentage of fixation in lookzone we can found that quantity and percentage of fixation in competitor are significant difference between high-level groups and low-level groups. This conclusion can illustrate that high-level groups pay more attention to competitor and devote more cognitive resources.4Fixation TrackFrom the result of Fixation track we can found that the fixation track of high-level groups is focus on competitor while the fixation track of low-level groups is move with the ball when they watched tennis match.