Coherent versus Component Motion Perception in Autism Spectrum Disorder |
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| Authors: | Myriam W G Vandenbroucke H Steven Scholte Herman van Engeland Victor A F Lamme Chantal Kemner |
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| Institution: | (1) Department of Child and Adolescent Psychiatry, Rudolf Magnus Institute of Neuroscience, University Medical Centre Utrecht, B01.201, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands;(2) Department of Psychology, University of Amsterdam, Amsterdam, The Netherlands;(3) The Netherlands Institute for Neuroscience (Royal Academy of Arts and Sciences KNAW), Amsterdam, The Netherlands;(4) Department of Neurocognition, Faculty of Psychology, Maastricht University, Maastricht, The Netherlands |
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| Abstract: | Research on visual perception in Autism Spectrum Disorder (ASD) tries to reveal the underlying mechanisms of aberrant local
and global processing. Global motion perception is one way to study this aspect of ASD. We used plaid motion stimuli, which
can be perceived as a coherently moving pattern, requiring feature integration, or as two transparent gratings sliding over
each other. If global motion detection is impaired in ASD, this would lead to a decrease of the total time that a coherent
pattern is perceived. However, in contrast to other studies in the literature, our results gave no evidence of impaired global
motion perception in people with ASD. A reconciliation of the different outcomes is proposed based on spatial frequency processing
in ASD. |
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| Keywords: | Asperger Integration Synchronization Global Stimulus rivalry |
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