Audio-tactile superiority over visuo-tactile and audio-visual combinations in the temporal resolution of synchrony perception
Audio-tactile superiority over visuo-tactile and audio-visual combinations in the temporal resolution of synchrony perception
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DOI：
10.1007/s00221-009-1870-x
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发表时间：
2009-09-01
影响因子：
2
通讯作者：
Nishida, Shin'ya
中科院分区：
文献类型：
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作者：
Fujisaki, Waka;Nishida, Shin'ya
要查看音频视觉（AV），Visuo-Tactile（VT）和音频触觉（AT）组合之间的同步感知的时间分辨率是否存在差异，我们比较了人类参与者的同步 - 同步歧视歧视阈值。视觉和听觉刺激分别是亮度调节的高斯斑点和振幅调节的白噪声。触觉刺激是给食指呈现的机械振动。所有刺激均由单个脉冲或重复脉冲列车进行时间调节。结果表明，同步感知的时间分辨率在AV和VT（例如，重复脉冲刺激的4 Hz）相似，但AT（类似于10 Hz）明显更高。但是，除了具有较高的时间分辨率外，在同步感知时，与AV同步感知相似，因为参与者可以通过注意选择匹配功能，并且匹配功能属性的变化对时间分辨率的影响很小。时间分辨率的优越性不仅通过同步 - 同步歧视，而且通过同时判断来指示。与其他两个任务相比，时间顺序判断受模式组合的影响较小。
To see whether there is a difference in temporal resolution of synchrony perception between audio-visual (AV), visuo-tactile (VT), and audio-tactile (AT) combinations, we compared synchrony-asynchrony discrimination thresholds of human participants. Visual and auditory stimuli were, respectively, a luminance-modulated Gaussian blob and an amplitude-modulated white noise. Tactile stimuli were mechanical vibrations presented to the index finger. All the stimuli were temporally modulated by either single pulses or repetitive-pulse trains. The results show that the temporal resolution of synchrony perception was similar for AV and VT (e.g., similar to 4 Hz for repetitive-pulse stimuli), but significantly higher for AT (similar to 10 Hz). Apart from having a higher temporal resolution, however, AT synchrony perception was similar to AV synchrony perception in that participants could select matching features through attention, and a change in the matching-feature attribute had little effect on temporal resolution. The AT superiority in temporal resolution was indicated not only by synchrony-asynchrony discrimination but also by simultaneity judgments. Temporal order judgments were less affected by modality combination than the other two tasks.