title: Disturbed interplay between mid- and high-level vision in ASD? Evidence from a contour identification task with everyday objects.
abstract: Atypical visual processing in children with autism spectrum disorder (ASD) does not seem to reside in an isolated processing component, such as global or local processing. We therefore developed a paradigm that requires the interaction between different processes-an identification task with Gaborized object outlines-and applied this to two age groups of 6-to-10 and 10-to-14 year old children with and without ASD. Event history analyses demonstrated an identification disadvantage in the ASD group, which remained quite stable during the temporal unfolding of the outline. The typically developing group particularly outperformed the ASD group when more complex contours were shown. Together, our results suggest that the interplay between local and global processes and between bottom-up and top-down processes is disturbed in ASD.
authors.affiliation: Laboratory of Experimental Psychology, KU Leuven, Tiensestraat 102, box 3711, 3000, Leuven, Belgium, kris.evers@psy.kuleuven.be.
authors.forename: Kris
authors.initials: K
authors.lastname: Evers
authors.forename: Sven
authors.initials: S
authors.lastname: Panis
authors.forename: Katrien
authors.initials: K
authors.lastname: Torfs
authors.forename: Jean
authors.initials: J
authors.lastname: Steyaert
authors.forename: Ilse
authors.initials: I
authors.lastname: Noens
authors.forename: Johan
authors.initials: J
authors.lastname: Wagemans
mesh_terms: D000293:Adolescent; D002648:Child; D002659:Child Development Disorders, Pervasive / Q000503:physiopathology*; D015350:Contrast Sensitivity / Q000502:physiology; D005260:Female; D006801:Humans; D008297:Male; D010775:Photic Stimulation; D014796:Visual Perception / Q000502:physiology*
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