Recent studies show that repeated exposure to an asynchrony between auditory and visual stimuli shifts the point of subjective simultaneity. Usually, the measurement stimuli used to assess this aftereffect are interleaved with short re-exposures to the asynchrony. In a first experiment, we show that the aftereffect declines during measurement in spite of the use of re-exposures. In a second experiment, we investigate whether the observed decline is either due to a dissipation of the aftereffect with the passage of time, or the result of using measurement stimuli with a distribution of asynchronies different from the exposure stimulus. To this end, we introduced a delay before measuring the aftereffects and we compared the magnitude of the aftereffect with and without delay. We find that the aftereffect does not dissipate during the delay but instead is stored until new sensory information in the form of measurement stimuli is presented as counterevidence (i.e., stimuli with an asynchrony that differs from the one used during exposure).

译文

最近的研究表明,反复暴露于听觉和视觉刺激之间的不同步状态会改变主观同时性。通常,用于评估这种后效的测量刺激与短暂的不同步再暴露交织在一起。在第一个实验中,我们表明尽管使用了再曝光,但在测量过程中后效会下降。在第二个实验中,我们研究观察到的下降是由于后效随着时间的流逝而消散,还是使用具有与暴露刺激不同的异步分布的测量刺激的结果。为此,我们在测量后效之前引入了一个延迟,并比较了有和没有延迟的后效的大小。我们发现,后效不会在延迟期间消散,而是被存储,直到以测量刺激形式的新感官信息被呈现为反证 (即,具有与暴露期间使用的不同步刺激不同的不同步刺激)。

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