Separate temporal limits of cross-attribute processing revealed by binding and synchrony judgments

本研究比较了视听（AV）、视觉-触觉（VT）和听觉-触觉（AT）组合的同步-异步区分阈值和时间绑定上限。结果表明，同步感知的时间分辨率在AV和VT组（约4 Hz）相近，而AT组（约10 Hz）显著高于AV组（约10 Hz）。然而，对于任何视觉、听觉和触觉属性的组合，交叉属性时间绑定的上限惊人地相似（约2.5 Hz）。这些发现表明，跨属性时间绑定是由一个缓慢的中央过程介导的，该过程将单独处理的单个事件的“什么”和“什么时候”属性结合在一起。

This study compared synchrony-asynchrony discrimination thresholds and the upper limits of temporal binding between audio-visual (AV), visuo-tactile (VT), and audio-tactile (AT) combinations. The results show that the temporal resolution of synchrony perception was similar for AV and VT (approximately 4 Hz), but significantly higher for AT (approximately 10 Hz). However, the upper limits of cross-attribute temporal binding were surprisingly similar for any combination of visual, auditory and tactile attributes (approximately 2.5 Hz). These findings suggest that cross-attribute temporal binding is mediated by a slow central process that combines separately processed 'what' and 'when' properties of a single event.