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Guy, Jacalyn; Mottron, Laurent; Berthiaume, Claude; Bertone, Armando – Journal of Autism and Developmental Disorders, 2019
Individuals with autism spectrum disorder (ASD) demonstrate superior performances on visuo-spatial tasks emphasizing local information processing; however, findings from studies involving hierarchical stimuli are inconsistent. Wide age ranges and group means complicate their interpretability. Children and adolescents with and without ASD completed…
Descriptors: Visual Perception, Autism, Pervasive Developmental Disorders, Children
Herrington, John D.; Riley, Meghan E.; Grupe, Daniel W.; Schultz, Robert T. – Journal of Autism and Developmental Disorders, 2015
This study examines whether deficits in visual information processing in autism-spectrum disorder (ASD) can be offset by the recruitment of brain structures involved in selective attention. During functional MRI, 12 children with ASD and 19 control participants completed a selective attention one-back task in which images of faces and houses were…
Descriptors: Visual Perception, Cognitive Processes, Autism, Pervasive Developmental Disorders
Dillen, Claudia; Steyaert, Jean; Op de Beeck, Hans P.; Boets, Bart – Journal of Autism and Developmental Disorders, 2015
The embedded figures test has often been used to reveal weak central coherence in individuals with autism spectrum disorder (ASD). Here, we administered a more standardized automated version of the embedded figures test in combination with the configural superiority task, to investigate the effect of contextual modulation on local feature…
Descriptors: Autism, Pervasive Developmental Disorders, Adolescents, Comparative Analysis
Williams, Diane L.; Goldstein, Gerald; Minshew, Nancy J. – Journal of Autism and Developmental Disorders, 2013
This study used the modality shift experiment, a relatively simple reaction time measure to visual and auditory stimuli, to examine attentional shifting within and across modalities in 33 children and 42 adults with high-functioning autism as compared to matched numbers of age- and ability-matched typical controls. An exaggerated "modality shift…
Descriptors: Auditory Stimuli, Autism, Cognitive Processes, Reaction Time
David, Nicole; Aumann, Carolin; Bewernick, Bettina H.; Santos, Natacha S.; Lehnhardt, Fritz-G.; Vogeley, Kai – Journal of Autism and Developmental Disorders, 2010
Mentalizing refers to making inferences about other people's mental states, whereas visuospatial perspective taking refers to inferring other people's viewpoints. Both abilities seem vital for social functioning; yet, their exact relationship is unclear. We directly compared mentalizing and visuospatial perspective taking in nineteen adults with…
Descriptors: Cues, Asperger Syndrome, Perspective Taking, Inferences
Cognitive Differences in Pictorial Reasoning between High-Functioning Autism and Asperger's Syndrome
Sahyoun, Cherif P.; Soulieres, Isabelle; Belliveau, John W.; Mottron, Laurent; Mody, Maria – Journal of Autism and Developmental Disorders, 2009
We investigated linguistic and visuospatial processing during pictorial reasoning in high-functioning autism (HFA), Asperger's syndrome (ASP), and age and IQ-matched typically developing participants (CTRL), using three conditions designed to differentially engage linguistic mediation or visuospatial processing (visuospatial, V; semantic, S;…
Descriptors: Reaction Time, Semantics, Autism, Asperger Syndrome
Keehn, Brandon; Brenner, Laurie A.; Ramos, Aurora I.; Lincoln, Alan J.; Marshall, Sandra P.; Muller, Ralph-Axel – Journal of Autism and Developmental Disorders, 2009
The present study examined fixation frequency and duration during an Embedded Figures Test (EFT) in an effort to better understand the attentional and perceptual processes by which individuals with autism spectrum disorder (ASD) achieve accelerated EFT performance. In particular, we aimed to elucidate differences in the patterns of eye-movement in…
Descriptors: Reaction Time, Autism, Eye Movements, Pervasive Developmental Disorders