Characteristics of Evoked Potentials in Chinese Deaflympic Table Tennis Players

SUN Qianyun; ZHAO Jingguo; Zhao Qingyi; Yuan Feng; Zhang Ailing

Abstract：To explore the characteristics of visual evoked potentials (VEP)P100 and event-related potentials P300 in Chinese ta-ble tennis players who participated in the Deaflympic Games,and provide a reference for the athletes selecting and function evaluation. The visual evoked potentials and the event-related potentials of subjects were recorded and analyzed by NDI-200 neural electricity tester (Poseidon).The subjects of Olympic athletes group were eight Chinese table tennis players who engaged in the 22th Summer Deaflympic Games in Bulgarian,July 2013.The control group was composed of seventy four general college students.The amplitude and latency of visual evoked potentials P100 has no significant differences between the two groups (P>0.05).Compared with the con-trol group,the amplitude of P300 was found to be very significantly increased at Cz site (P<0.01 )and significantly increased at Fz site (P<0.01),and there was also some increase at Pz site (P=0.061)in the Olympic athletes group.The latency of P300 was very significant reduction at Pz site in the Olympic athletes group (P<0.01).The reaction times of P300 were very significantly reduced at all the site (Fz、Pz、Cz)(P<0.01).The amplitude and latency of visual evoked potentials P100 has no significant differences between the Deaflympic Games athletes and general college students.However,the visual event-related potentials P300 show that amplitude increase,latency reduce and reaction time shorten in Deaflympic Games athletes.