In sports,athletes can infer their opponent’s intentions earlier and more accurately than novices.Numerous studies have validated that long-term sports experience promotes the ability of expert athletes to make the correct decisions within limited information.Whether it is due to the rapid accumulation of valid cues,an intuitive bias towards early decision making,or their more confident decision-making style,may be the underlying reasons for the athletes’ decision advantage.However,current behavioral research cannot answer this question,and computational models offer a possible way to understand athletes’ decision making.However,current behavioral studies cannot answer this question,and computational models provide a possible way to understand athletes’ decision making.Drift-diffusion model(DDM)is a computational model to explore the psychological mechanism.It holds that decision making is a process of collecting information in the noise.When the information collected exceeds a certain threshold,the decision comes into being.The model parameter estimation method is HDDM.In this experiment,the model is used to describe the cognitive processing of experts and novices to judge the ground point of table tennis under different cue conditions.The experimental design of experiment 1was a two-factor mixed experimental design of 2(group: expert,novice)×4(information content: T1,T2,T3,T4).51 subjects were divided into the novice group(N = 25)and the expert group(N = 26)according to their table tennis experience.In experiment 1,the table tennis serving video was blocked at different time points,that is,different information clues were given for decision-making.The results showed that the expert’s decision-making threshold was lower than that of the novice after a long period of special training and rich sports experience.The experimental design of experiment 2 was a two-factor mixed experimental design of2(group: expert and novice)× 2(consistency: consistent and inconsistent).The consistency degree of sensory and perceptual cues in the table tennis serving video was changed to the condition of kinematic information and ball flight information being consistent and inconsistent.The results showed that both experts and novices were affected by the ball flight information.In experiment 3,priori information was added on the basis of the previous two experiments,and the results showed that experts were more susceptible to priori information than novices.When presented with kinematic information,the experts were able to process the kinematic information more effectively than the novices to adjust their judgments and change their starting preferences.Through HDDM and EEG techniques,this study aims to explore how experts and novices use cues to make sports decisions,and whether there are differences in behavior and brain activity processing between groups in table tennis decision-making.The results showed that experts were better at using prior information and identifying kinematic information than novices,and induced the EEG components of CNV and CPP during the cue-locking and target-locking phases,respectively.In addition,after long-term special training and rich sports experience,experts have a lower decision-making threshold than novices,that is,less information can trigger decision-making,which has nothing to do with the processing speed of information. |