It is well known that the perceived duration for a given time period decreases with the reduction of the number of perceived events. We examined whether target detection failures in viewing Rapid Serial Visual Presentation (RSVP) sequence, caused by attentional blink, affect this reduction of perceived duration. In two experiments, trials consisted of displays of two series of RSVP sequences; in the first sequence (the comparison), two, one, or no numerals were presented as targets embedded within the string of letters, while in the second sequence (the standard), only alphabetic letters were presented. In each trial, participants judged whether the duration of the comparison is perceived as longer than that of the standard (Experiment 1), or whether the number of frames in the comparison is perceived as more than that in the standard (Experiment 2). Results showed that perceived duration was inflated with target detection, but not with the increment of presented frames although number of perceived frames was inflated with both target detection and increment of presented frames. These results suggest that perceived duration in viewing RSVP sequences is determined by the cognitive load necessary to accomplish target detection rather than by the number of perceived frames.

众所周知，给定时间段的感知持续时间随着感知事件数量的减少而减少。我们检查了由注意眨眼引起的查看快速串行视觉呈现（RSVP）序列中的目标检测失败是否会影响感知持续时间的减少。在两个实验中，试验由两个RSVP序列序列的展示组成。在第一个序列（比较）中，出现了两个，一个或一个数字作为嵌入在字符串中的目标，而在第二个序列（标准）中，仅显示了字母。在每项试验中，参与者判断比较持续时间是否比标准持续时间更长（实验1），或者比较中的帧数是否大于标准中的帧数（实验2）。结果表明，感知持续时间随目标检测而增加，但不随呈现帧的增加而增加，尽管感知检测的数量随目标检测和呈现帧的增加而增加。这些结果表明，观看RSVP序列时的感知持续时间取决于完成目标检测所需的认知负荷，而不是感知帧的数量。