예측타이밍 반응시의 시각적 정보처리과정과 제어기전 = Visual Information Processing and Control Mechanism for Coincident Timing Response

다국어 초록 (Multilingual Abstract)

The purpose of this study was to investigate visual information processing and control mechanism underlying coincident timing response by analyzing the effect of stimulus velocity and the range of stimulus presentation on the latency, amplitude, duration, velocity and frequency of saccadic eye movement pattern. Twelve subjects performed coincident timing response in diverse task conditions, and constant error, absolute error, and various eye movement variables were measured for each response. The accuracy of timing response was found to decrease with increasing stimulus velocity and decreasing stimulus presentation range. Eye movement patterns, however, were only sensitive to stimulus velocity, and were not different between ranges of stimulus presentation. With the increasing stimulus velocity, the latency and amplitude of the first saccade were reduced and increased respectively. The average velocity of overall saccades was also increased with increasing stimulus velocity, whereas the frequency of saccade was increased with decreasing stimulus velocity. These results suggest that the eye movement pattern emerging during coincident timing response may reflect control strategy selected by the control system for an effective information processing in a given task situation, and is directly related to the accuracy of required response.