CAJ | 학술논문

闪光滞后效应（flash—lag effect）是指在与运动物体一致的位置上呈现闪光（flash），知觉上闪光落后于运动物体的视错觉。延迟差异理论认为，产生该现象的原因是视觉系统加工闪光的速度比加工运动物体慢。根据该理论，作者预测：如采用知觉加工速度更快（或更慢）的客体替代闪光，应能相应地产生更小（或更大）的闪光滞后效应。为了检验该预测，作者以“客体突现”（onset）和“客体消失”（offset）替代闪光滞后实验中的闪光，结果发现，“突现”的知觉滞后大于“消失”，但时序判断任务表明“突现”的知觉延迟比“消失”短。该结果并不支持延迟差异理论。
섬광체후효응（flash—lag effect）시지재여운동물체일치적위치상정현섬광（flash），지각상섬광락후우운동물체적시착각。연지차이이론인위，산생해현상적원인시시각계통가공섬광적속도비가공운동물체만。근거해이론，작자예측：여채용지각가공속도경쾌（혹경만）적객체체대섬광，응능상응지산생경소（혹경대）적섬광체후효응。위료검험해예측，작자이“객체돌현”（onset）화“객체소실”（offset）체대섬광체후실험중적섬광，결과발현，“돌현”적지각체후대우“소실”，단시서판단임무표명“돌현”적지각연지비“소실”단。해결과병불지지연지차이이론。
The flash-lag effect is a robust visual illusion in which a flash appears to spatially lag a continuously moving stimulus, even though actually both stimuli are precisely aligned. The differential latency model suggests that the flash-lag effect occurs because the flash is processed slower than the moving object. Ac- cordingly it should be predicted that using another visual event with shorter/longer perceptual latency to replace the flash could induce a smaller/larger illu- sory lag. Three experiments were conducted to test this prediction utilizing onset/offset instead of flash in the classical flash-lag paradigm. The results indi- cated that the onset-lag was significantly larger than the flash-lag and the offset-lag, though the perceptual latency of onset was shorter than offset in the subjec- tive simultaneity judgment. The findings were incon- sistent with the prediction of the differential latency model, or of other models which suggest that the flash-lag effect reflects the perceptual mechanism of compensating perceptual latency.