Auditory Stimulus Timing Influences Perceived duration of Co-Occurring Visual Stimuli.
Auditory Stimulus Timing Influences Perceived duration of Co-Occurring Visual Stimuli.
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DOI：
10.3389/fpsyg.2011.00215
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发表时间：
2011
影响因子：
3.8
通讯作者：
Driver J
中科院分区：
文献类型：
--
作者：
Romei V;De Haas B;Mok RM;Driver J
人们越来越关注多感官对特定感官判断的影响，例如听觉刺激影响视觉感知。在这里，我们研究了听觉事件的持续时间是否可以客观地影响同时发生的视觉事件的感知持续时间。在每次试验中，参与者都会看到两次连续的闪光，并必须判断第一次或第二次是否更长。闪光灯发出两声蜂鸣声。短刺激和长刺激的顺序在听觉和视觉上可以相同（视听一致），也可以相反，这样较长的闪光伴随着较短的蜂鸣声，反之亦然（视听不一致）；或者两声蜂鸣声的持续时间可以相同。蜂鸣声和闪烁可以同步或异步发生。在进一步的控制实验中，蜂鸣持续时间比闪烁持续时间长得多（三倍）。结果表明，相对于仅视觉呈现，一致的视听同步组合的视觉持续时间辨别敏感性（d′）显着较高（而不一致的视听同步组合则显着较低）。当听觉和视觉刺激异步呈现时，或者当声音持续时间是闪光的三倍时，这种效应就被消除了。我们得出的结论是，同时发生的听觉刺激的时间特性影响视觉刺激的感知持续时间，这可以反映视觉敏感性的真正变化，而不仅仅是反应偏差。
There is increasing interest in multisensory influences upon sensory-specific judgments, such as when auditory stimuli affect visual perception. Here we studied whether the duration of an auditory event can objectively affect the perceived duration of a co-occurring visual event. On each trial, participants were presented with a pair of successive flashes and had to judge whether the first or second was longer. Two beeps were presented with the flashes. The order of short and long stimuli could be the same across audition and vision (audio–visual congruent) or reversed, so that the longer flash was accompanied by the shorter beep and vice versa (audio–visual incongruent); or the two beeps could have the same duration as each other. Beeps and flashes could onset synchronously or asynchronously. In a further control experiment, the beep durations were much longer (tripled) than the flashes. Results showed that visual duration discrimination sensitivity (d′) was significantly higher for congruent (and significantly lower for incongruent) audio–visual synchronous combinations, relative to the visual-only presentation. This effect was abolished when auditory and visual stimuli were presented asynchronously, or when sound durations tripled those of flashes. We conclude that the temporal properties of co-occurring auditory stimuli influence the perceived duration of visual stimuli and that this can reflect genuine changes in visual sensitivity rather than mere response bias.
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