title: Spatial Frequency Priming of Scene Perception in Adolescents With and Without ASD.
abstract: While most typically developing (TD) participants have a coarse-to-fine processing style, people with autism spectrum disorder (ASD) seem to be less globally and more locally biased when processing visual information. The stimulus-specific spatial frequency content might be directly relevant to determine this temporal hierarchy of visual information processing in people with and without ASD. We implemented a semantic priming task in which (in)congruent coarse and/or fine spatial information preceded target categorization. Our results indicated that adolescents with ASD made more categorization errors than TD adolescents and needed more time to process the prime stimuli. Simultaneously, however, our findings argued for a processing advantage in ASD, when the prime stimulus contains detailed spatial information and presentation time permits explicit visual processing.
authors.affiliation: Brain and Cognition, University of Leuven (KU Leuven), 3000, Leuven, Belgium. steven.vanmarcke@kuleuven.be.|Leuven Autism Research (LAuRes), KU Leuven, Leuven, Belgium. steven.vanmarcke@kuleuven.be.
authors.forename: Steven
authors.identifier: 0000-0003-2181-7565
authors.initials: S
authors.lastname: Vanmarcke
authors.affiliation: Leuven Autism Research (LAuRes), KU Leuven, Leuven, Belgium.|Parenting and Special Education Research Unit, KU Leuven, Leuven, Belgium.
authors.forename: Ilse
authors.initials: I
authors.lastname: Noens
authors.affiliation: Leuven Autism Research (LAuRes), KU Leuven, Leuven, Belgium.|Department of Child Psychiatry, UPC-KU Leuven, Kortenberg, Belgium.
authors.forename: Jean
authors.initials: J
authors.lastname: Steyaert
authors.affiliation: Brain and Cognition, University of Leuven (KU Leuven), 3000, Leuven, Belgium.|Leuven Autism Research (LAuRes), KU Leuven, Leuven, Belgium.
authors.forename: Johan
authors.initials: J
authors.lastname: Wagemans
mesh_terms: D000293:Adolescent; D000067877:Autism Spectrum Disorder / Q000503:physiopathology*; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D008297:Male; D060865:Repetition Priming; D013028:Space Perception; D014796:Visual Perception
keywords: Autism spectrum disorders; Coarse-to-fine processing; Local–global information; Scene perception; Spatial frequency