The Event-Related Potential Study On Information Autonomic Processing Between Archers And Basketball Players

The purpose of this experiment is to prove information automatic processing differences of athletes participate in open or closed sport event by using MMN (mismatch negativity) component to discuss reasons of these differences and to find out appropriate paradigm which can testify these differences more accurately. In experiment 1, we introduced classical oddball paradigm and compared the area and latency of MMN of athletes participate in open and closed sport event with the purpose of proving information automatic processing differences of the two groups. In experiment 2, in order to remove the interruption of N1 component and induce purer MMN, we introduced controlled oddball paradigm and compared the area and latency of MMN of classical and controlled paradigm.Method16 healthy right-handed sportsmen (8 basketball players, 8 archers, age 16-24, 8 females)were paid to participate in the experiment. Audio stimuli were designed by Neuroscan Stim2 software. Electroencephalogram (EEG) was continuously recorded (band pass 0.05-100Hz, sampling rate 500Hz) with Neuroscan Synamp2 Amplifier and the data were analysed by Neuroscan Scan 4.3 software system. Results1. In experiment 1, there are clear area and latency differences of MMN between basketball players (opensport event group) and archers (closed sport event group) within classical oddball paradigm and controlled oddball paradigm. And the differences are clearer under controlled oddball paradigm.2. In experiment 2, compared with classical oddball paradigm, controlled oddball paradigm can remove the interruption of N1 component and induce purer MMN.