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Full Access Moods alter audiovisual integration

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Moods alter audiovisual integration

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For more content, see Multisensory Research and Spatial Vision.

Multisensory integration depends on the temporal proximity of events in different modalities. Recent studies have shown that multisensory temporal binding may be related to individual traits (Foss-Feig et al., 2010; Stevenson et al., 2012). Here we show that positive moods in observers enhance the temporal binding of audiovisual multisensory integration. Twenty-five healthy participants observed two identical visual disks moving toward each other, coinciding, and moving away. The two disks were perceived as either streaming through or bouncing off each other (stream/bounce display), and a belief sound around the visual coincidence facilitated bouncing perception (Sekuler et al., 1997; Watanabe and Shimojo, 2001). We asked the participants to report whether the two disks appeared to stream through or bounce off while listening to either exhilarating music of their own choice or a neutral pink noise. The results showed that the participants listening to exhilarating music reported bouncing percept more frequently. The proportion of bouncing percepts was correlated with the valence rating rather than the arousal rating during the experiment. These results suggest that positive moods enhance the temporal binding process in audiovisual integration.

Affiliations: 1: 1Research Center for Advanced Science and Technology, The University of Tokyo, JP; 2: 2NTT Communication Science Laboratories, NTT Corporation, JP

Multisensory integration depends on the temporal proximity of events in different modalities. Recent studies have shown that multisensory temporal binding may be related to individual traits (Foss-Feig et al., 2010; Stevenson et al., 2012). Here we show that positive moods in observers enhance the temporal binding of audiovisual multisensory integration. Twenty-five healthy participants observed two identical visual disks moving toward each other, coinciding, and moving away. The two disks were perceived as either streaming through or bouncing off each other (stream/bounce display), and a belief sound around the visual coincidence facilitated bouncing perception (Sekuler et al., 1997; Watanabe and Shimojo, 2001). We asked the participants to report whether the two disks appeared to stream through or bounce off while listening to either exhilarating music of their own choice or a neutral pink noise. The results showed that the participants listening to exhilarating music reported bouncing percept more frequently. The proportion of bouncing percepts was correlated with the valence rating rather than the arousal rating during the experiment. These results suggest that positive moods enhance the temporal binding process in audiovisual integration.

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1. Foss-Feig J. H. , Kwakye L. D. , Cascio C. J. , Burnette C. P. , Kadivar H. , Stone W. L. , Wallace M. T. ( 2010). "An extended multisensory temporal binding window in autism spectrum disorders", Experimental Brain Research Vol 203, 381389. http://dx.doi.org/10.1007/s00221-010-2240-4
2. Sekuler R. , Sekuler A. B. , Lau R. ( 1997). "Sound alters visual motion perception", Nature Vol 385, 308. http://dx.doi.org/10.1038/385308a0
3. Stevenson R. A. , Zemtsov R. K. , Wallace M. T. ( 2012). "Individual differences in the multisensory temporal binding window predict susceptibility to audiovisual illusions", Journal of Experimental Psychology: Human Perception and Performance [Epub ahead of print].
4. Watanabe K. , Shimojo S. ( 2001). "Postcoincidence trajectory duration affects motion event perception", Perception & Psychophysics Vol 63, 1628. http://dx.doi.org/10.3758/BF03200498
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/content/journals/10.1163/187847612x647621
2012-01-01
2016-12-10

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