Department of Psychology, University of Essex, Colchester, United Kingdom.
PLoS One. 2011 May 9;6(5):e19815. doi: 10.1371/journal.pone.0019815.
It has been suggested that repeated stimuli have shorter subjective duration than novel items, perhaps because of a reduction in the neural response to repeated presentations of the same object. Five experiments investigated the effects of repetition on time perception and found further evidence that immediate repetition reduces apparent duration, consistent with the idea that subjective duration is partly based on neural coding efficiency. In addition, the experiments found (a) no effect of repetition on the precision of temporal discrimination, (b) that the effects of repetition disappeared when there was a modest lag between presentations, (c) that, across participants, the size of the repetition effect correlated with temporal discrimination, and (d) that the effects of repetition suggested by a temporal production task were the opposite of those suggested by temporal judgments. The theoretical and practical implications of these results are discussed.
有人认为，重复刺激的主观持续时间比新刺激的主观持续时间短，这可能是因为对同一物体的重复呈现的神经反应减少了。五项实验研究了重复对时间感知的影响，进一步证明了即时重复会减少主观持续时间，这与主观持续时间部分基于神经编码效率的观点是一致的。此外，这些实验还发现：（a）重复对时间辨别精度没有影响；（b）当呈现之间有适度的滞后时，重复的影响消失了；（c）在参与者之间，重复效应的大小与时间辨别相关；（d）时间产生任务中重复的影响与时间判断中重复的影响相反。讨论了这些结果的理论和实际意义。
