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      • Department of Psychology
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      Audiovisual associations alter the perception of low-level visual motion

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      Author
      Kafaligonul H.
      Oluk, C.
      Date
      2015
      Source Title
      Frontiers in Integrative Neuroscience
      Print ISSN
      16625145
      Publisher
      Frontiers Research Foundation
      Volume
      9
      Issue
      MAR
      Language
      English
      Type
      Article
      Item Usage Stats
      124
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      Abstract
      Motion perception is a pervasive nature of vision and is affected by both immediate pattern of sensory inputs and prior experiences acquired through associations. Recently, several studies reported that an association can be established quickly between directions of visual motion and static sounds of distinct frequencies. After the association is formed, sounds are able to change the perceived direction of visual motion. To determine whether such rapidly acquired audiovisual associations and their subsequent influences on visual motion perception are dependent on the involvement of higherorder attentive tracking mechanisms, we designed psychophysical experiments using regular and reverse-phi random dot motions isolating low-level pre-attentive motion processing. Our results show that an association between the directions of low-level visual motion and static sounds can be formed and this audiovisual association alters the subsequent perception of low-level visual motion. These findings support the view that audiovisual associations are not restricted to high-level attention based motion system and early-level visual motion processing has some potential role. © 2015 Kafaligonul and Oluk.
      Keywords
      Audiovisual associations
      Direction discrimination
      Motion perception
      Multisensory
      Visual motion processing
      adult
      Article
      association
      attention
      audiovisual association
      auditory discrimination
      auditory stimulation
      female
      human
      human experiment
      male
      motion
      motion direction
      movement perception
      normal human
      sound
      static sound
      stimulus response
      visual motion perception
      visual stimulation
      Permalink
      http://hdl.handle.net/11693/22214
      Published Version (Please cite this version)
      http://dx.doi.org/10.3389/fnint.2015.00026
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      • Department of Psychology 157
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