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      • Faculty of Economics, Administrative And Social Sciences
      • Department of Psychology
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      Gloss and speed judgments yield different fine tuning of saccadic sampling in dynamic scenes

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      Author
      Toscani, M.
      Yücel, Ezgi I.
      Doerschner, Katja
      Date
      2019-12
      Source Title
      i-Perception
      Print ISSN
      2041-6695
      Electronic ISSN
      2041-6695
      Publisher
      Sage Publications
      Volume
      10
      Issue
      6
      Pages
      1 - 10
      Language
      English
      Type
      Article
      Item Usage Stats
      79
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      42
      downloads
      Abstract
      Image motion contains potential cues about the material properties of objects. In earlier work, we proposed motion cues that could predict whether a moving object would be perceived as shiny or matte. However, whether the visual system uses these cues is still uncertain. Herein, we use the tracking of eye movements as a tool to understand what visual information observers use when engaged in material perception. Observers judged either the gloss or the speed of moving blobby shapes in an eye tracking experiment. Results indicate that during glossiness judgments, participants tend to look at gloss-diagnostic dynamic features more than during speed judgments. This suggests a fine tuning of the visual system to properties of moving stimuli: Task relevant information is actively singled out and processed in a dynamically changing environment.
      Keywords
      Eye movements
      Motion
      Optic flow
      Surfaces/materials
      Permalink
      http://hdl.handle.net/11693/53430
      Published Version (Please cite this version)
      https://dx.doi.org/10.1177/2041669519889070
      Collections
      • Department of Psychology 170
      • National Magnetic Resonance Research Center (UMRAM) 197
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