Research On The Characteristics Of Intuitive Decision-making In Expert-novice Tennis Players' Receiving And Serving Anticipation

This research adopts the research paradigm of "expert novice",selects 15 national tennis players as the expert group,15 ordinary freshmen as the novice group,and combines the eye movement instrument and event-related potential(ER P)technology to explore the behavior,EEG and eye movement characteristics of intuitive decision-making in the receiving and serving prediction of tennis players of different levels.The results are as follows:(1)there are significant differences between expert group and novice group in the ability of intuitive decision-making,reflecting the advantages of expert intuitive decision-making.(2)The accuracy rate of expert group is significantly higher than that of novice group,showing obvious behavioral advantages.(3)The expert group has advantages in visual search mode,The number of fix ation points in the area of interest of the expert group was significantly larger than that of the novice group;the source area of important information was mainly located in the "racket" and "trunk" from the perspective of fix ation time in the area of interest;the fixation track of the expert group was simple and clear,and the fixation track could obviously see that more parts of the same area of interest were scanned again;while the fixation track of the novice group was confused and unclear,and the fixation point ratio was higher It is scattered and distributed in all parts of the video.(4)The P 1 amplitude of expert group was significantly higher than that of novice group in FZ,F C2 and oz.The latency of N1 component induced by the expert group was lower than that of the novice group at FZ,FC2,C Z and CP 2,and the difference was significant;the amplitude of N1 component induced by the expert group was significantly higher than that of the novice group at the recording points of CP2 and oz electrodes.At FC2,C Z,CP1,CP 2 and PZ,the latency of P 3a induced by the expert group was smaller than that of the novice group,and the difference was significant;at FC 2 and CZ,the amplitude of P3 a induced by the expert group was significantly larger than that of the novice group.