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dc.contributor.supervisor Marotta, Jonathan (Psychology) en_US
dc.contributor.author Lazar, Tiffany
dc.date.accessioned 2015-01-09T19:44:56Z
dc.date.available 2015-01-09T19:44:56Z
dc.date.issued 2015-01-09
dc.identifier.uri http://hdl.handle.net/1993/30186
dc.description.abstract Individuals with autism spectrum disorder (ASD) often have difficulty “seeing the big picture” and tend to process objects by their parts. This study used a perceptual grouping task (Experiment 1) involving the Ponzo illusion to determine if individuals with ASD show a local processing bias due to difficulties grouping stimuli preattentively. Individuals with ASD were less likely than TD individuals to report an illusion-based response. The percentage of responses consistent with the illusion indicated at chance performance in the ASD group, suggesting that they experience deficits preattentively when grouping stimuli. This study also used a viewing window paradigm (Experiment 2) to evaluate the parts-based processing strategies used by individuals with ASD when allowed to either actively or passively view blurry objects using a restricted viewing aperture. For both conditions performance was similar across groups, suggesting that individuals with ASD use similar parts-based processing strategies as TD individuals to identify objects. en_US
dc.subject Vision en_US
dc.subject Autism en_US
dc.title Parts-based processing in autism en_US
dc.degree.discipline Psychology en_US
dc.contributor.examiningcommittee Lawrence-Dewar, Jane (Psychology) Glazebrook, Cheryl (Kinesiology and Recreation Management) en_US
dc.degree.level Master of Arts (M.A.) en_US
dc.description.note February 2015 en_US


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