Matching auditory and visual signals: Is sensory modality just another feature?
Matching auditory and visual signals: Is sensory modality just another feature?
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DOI：
10.1068/p5783
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发表时间：
2008-01-01
期刊：
影响因子：
1.7
通讯作者：
Verstraten, Frans A. J.
中科院分区：
文献类型：
--
作者：
Benjamins, Jeroen S.;van der Smagt, Maarten J.;Verstraten, Frans A. J.
为了连贯地感知世界，我们需要整合呈现给我们感官的物体和事件的特征。在这里，我们调查了整合的时间限制，在单通道的视觉和听觉以及跨通道的视觉条件。参与者被交替呈现视觉和听觉刺激，并被要求在模式内或模式之间进行匹配。在约4 Hz或更高的交替率下，参与者不再能够正确地匹配视觉和听觉刺激，而在任何一种模式内的匹配都显示出更高的时间限制。操纵不同的时间刺激特性（刺激偏移和/或视觉SOA）没有改变性能。有趣的是，交叉模态和单峰条件之间的时间限制的差异似乎惊人的相似单峰条件之间的时间限制的差异时，必须集成额外的功能。我们认为，增加一个通道，感觉输入集成有相同的效果，作为添加一个额外的功能集成在一个单一的方式。
In order to perceive the world coherently, we need to integrate features of objects and events that are presented to our senses. Here we investigated the temporal limit of integration in unimodal visual and auditory as well as crossmodal auditory-visual conditions. Participants were presented with alternating visual and auditory stimuli and were asked to match them either within or between modalities. At alternation rates of about 4 Hz and higher, participants were no longer able to match visual and auditory stimuli across modalities correctly, while matching within either modality showed higher temporal limits. Manipulating different temporal stimulus characteristics (stimulus offsets and/or auditory-visual SOAs) did not change performance. Interestingly, the difference in temporal limits between crossmodal and unimodal conditions appears strikingly similar to temporal limit differences between unimodal conditions when additional features have to be integrated. We suggest that adding a modality across which sensory input is integrated has the same effect as adding an extra feature to be integrated within a single modality.