The Study On The Brain Mechanism Of Executive Function Between Athletes And College Students

Executive function is an important brain function.At present,there are many explanations for the definition of executive function and the theory of executive function.In daily life,executive function affects our response,decision-making and other abilities,and plays a crucial role in our daily activities.The P300 component is one of the actively induced components of many event-related potentials,which are the special electrical activity of the brain generated by the stimulation of the nervous system of the human brain by a special stimulus in a specific mode.The time of its generation is related to the stimulation itself,and the distribution of its energy in specific brain regions is also significant.Compared with other bioelectrical signals,it is easier to detect and extract,so it is suitable for the detection of executive function and related brain mechanism research.At present,the detection of executive function is still mainly focused on the data analysis of some subjective scales and the analysis of EEG alone.There are still relatively few studies on the combination of EEG signals and behavioral data to detect executive function.The main problems to be solved are: How to obtain stable EEG components that can reflect executive function and how to combine EEG signals with behavioral data effectively? Therefore,this paper is to detect and explore the executive function of the brain of football and table tennis players as well as college students.The Flanker paradigm,1-back paradigm and More-odd rat race are designed to study the reaction time and accuracy of different populations when they are engaged in specific tasks.At the same time,EEG signals during the experiment were collected to compare the differences of response time and accuracy in the behavioral data with the latency and amplitude in the EEG data,and the differences in executive function between athletes and ordinary college students were judged by the P300 component of event-related potential.The results show that in all three experiments,when college students and high-level athletes perform the same task,there is no significant difference in reaction accuracy between ordinary college students and athletes,averaging 95.01% and 94.58%,respectively.In terms of response time,the task-related response speed of athletes is significantly faster than that of ordinary college students,with an average response time difference of about 100 ms.However,in the analysis of the difference value of P300 waveform induced by different stimuli,it is found that: There was no significant difference in the incubation period between ordinary college students and athletes,but there was significant difference in the amplitude(P <0.05).The analysis of the mean value showed that the difference in the amplitude of P300 of ordinary college students in the three experiments was 2.3μV,2.4μV,1.96μV on average.The average amplitude difference of athletes is 0.34μV,0.37μV and 0.15μV,which is obviously smaller than that of college students.Integrated behavioral data and EEG data:1.When performing the executive function task,the athletes’ performance in the three sub-function experiments not only guaranteed good accuracy,but also had a faster reaction speed.2.When performing tasks related to executive function,athletes have higher efficiency in resource allocation of related brain regions,and their executive function is better than that of ordinary college students.