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dc.contributor.authorOgulmus, C.en_US
dc.contributor.authorKaracaoglu, M.en_US
dc.contributor.authorKafaligonul, H.en_US
dc.date.accessioned2019-02-21T16:05:47Z
dc.date.available2019-02-21T16:05:47Z
dc.date.issued2018en_US
dc.identifier.issn0014-4819
dc.identifier.urihttp://hdl.handle.net/11693/50273
dc.description.abstractThe coordination of intramodal perceptual grouping and crossmodal interactions plays a critical role in constructing coherent multisensory percepts. However, the basic principles underlying such coordinating mechanisms still remain unclear. By taking advantage of an illusion called temporal ventriloquism and its influences on perceived speed, we investigated how audiovisual interactions in time are modulated by the spatial grouping principles of vision. In our experiments, we manipulated the spatial grouping principles of proximity, uniform connectedness, and similarity/common fate in apparent motion displays. Observers compared the speed of apparent motions across different sound timing conditions. Our results revealed that the effects of sound timing (i.e., temporal ventriloquism effects) on perceived speed also existed in visual displays containing more than one object and were modulated by different spatial grouping principles. In particular, uniform connectedness was found to modulate these audiovisual interactions in time. The effect of sound timing on perceived speed was smaller when horizontal connecting bars were introduced along the path of apparent motion. When the objects in each apparent motion frame were not connected or connected with vertical bars, the sound timing was more influential compared to the horizontal bar conditions. Overall, our findings here suggest that the effects of sound timing on perceived speed exist in different spatial configurations and can be modulated by certain intramodal spatial grouping principles such as uniform connectedness.
dc.description.sponsorshipAcknowledgements We thank Aaron Clarke and Jennifer Corbett for the discussions on this work and comments on the manuscript. This research was supported by the Scientific and Technological Research Council of Turkey (TUBITAK Grant 113K547).
dc.language.isoEnglish
dc.source.titleExperimental Brain Researchen_US
dc.relation.isversionofhttps://doi.org/10.1007/s00221-017-5159-1
dc.subjectApparent motionen_US
dc.subjectAudiovisual interactionsen_US
dc.subjectMultisensoryen_US
dc.subjectSpatial groupingen_US
dc.subjectSpeed perceptionen_US
dc.subjectTemporal ventriloquismen_US
dc.titleTemporal ventriloquism along the path of apparent motion: speed perception under different spatial grouping principlesen_US
dc.typeArticleen_US
dc.departmentUMRAM - National Magnetic Resonance Research Center
dc.departmentInterdisciplinary Program in Neuroscience
dc.departmentDepartment of Psychology
dc.citation.spage629en_US
dc.citation.epage643en_US
dc.citation.volumeNumber236en_US
dc.citation.issueNumber3en_US
dc.relation.project113K547 - Türkiye Bilimsel ve Teknolojik Araştirma Kurumu, TÜBITAK
dc.identifier.doi10.1007/s00221-017-5159-1
dc.publisherSpringer Verlag


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