Analysis of the Simon effect using Amplitude of RTA-ERP and Response time
김혜진 ; 유선국
전자공학회논문지, Vol.50(9) : 179~186, 2013
In this paper, the RTA-ERP(Response Time Aligned-Evoked Relative Potential) was modelled to analyze the effect of motor activation pattern in response to visual sensory stimuli. Simon effect was analysed using the amplitude response of RTA-ERP and measured response time. The "odd number" experiments, which identify an odd number mixed with same numbers, was performed with 15 healthy adult participants(9 males and 6 females, whose mean age of 31) for 7 minutes for each participant. Throughout experimentation, we observed that the proposed RTA-ERP can compensate the timing variation due to different neural processing procedures in the brain, and shows enhanced LRP(Lateralized Readiness Potential) and Pe(Error Related Positivity). Regarding to "congruence" and "incongruence" testing patterns, the amplitude of RTA-ERP and the response time for the "congruence" are 0.03 μV larger, and 43 ms faster than those for the "incongruence", respectively. The amplitude characteristics of RTA-ERP, obtained by synchronizing the onset times with respect to response time, corresponds more likely to that of P300 in the ERP pattern (the characteristics of the Simon effect).