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Sheppard, Elizabeth; Ropar, Danielle; Mitchell, Peter – Journal of Autism and Developmental Disorders, 2007
Weak Central Coherence (Frith, 1989) predicts that, in autism, perceptual processing is relatively unaffected by conceptual analysis. Enhanced Perceptual Functioning (Mottron & Burack, 2001) predicts that the perceptual processing of those with autism is less influenced by conceptual analysis only when higher-level processing is detrimental to…
Descriptors: Autism, Cognitive Development, Coping, Cognitive Processes
Christ, Shawn E.; Holt, Daniel D.; White, Desiree A.; Green, Leonard – Journal of Autism and Developmental Disorders, 2007
Impairments in executive abilities such as cognitive flexibility have been identified in individuals with autism spectrum disorder (ASD). It remains unclear, however, whether such individuals also experience impairments in another executive ability: inhibitory control. In the present study, we administered three inhibitory tasks to 18 children…
Descriptors: Cognitive Ability, Siblings, Autism, Cognitive Processes
Winsler, Adam; Abar, Beau; Feder, Michael A.; Schunn, Christian D.; Rubio, David Alarcon – Journal of Autism and Developmental Disorders, 2007
Private speech used by high-functioning children with autistic spectrum disorders (ASD) (n=33) during two executive functioning tasks was compared to that of typically developing children (n=28), and children with ADHD (n=21). Children with ASD were as likely as others to talk to themselves and their speech was similarly relevant and likely to…
Descriptors: Autism, Pervasive Developmental Disorders, Inner Speech (Subvocal), Cognitive Processes
Barbaro, Josephine; Dissanayake, Cheryl – Journal of Autism and Developmental Disorders, 2007
The use and understanding of self-presentational display rules (SPDRs) was investigated in 21 children with high-functioning autism (FHA), 18 children with Asperger's disorder (AspD) and 20 typically developing (TD) children (all male, aged 4- to 11-years, matched on mental age). Their behaviour was coded during a deception scenario to assess use…
Descriptors: Comparative Analysis, Mental Age, Asperger Syndrome, Autism
Schlooz, Wim A. J. M.; Hulstijn, Wouter; van den Broek, Pieter J. A.; van der Pijll, Angela C. A. M.; Gabreels, Fons; van der Gaag, Rutger J.; Rotteveel, Jan J. – Journal of Autism and Developmental Disorders, 2006
Children diagnosed with Pervasive Developmental Disorder Not Otherwise Specified (PDD-NOS) and Asperger Syndrome (AS) may be characterised by a similar perceptual focus on details as children with autistic disorder (AD). This was tested by analysing their performance in a visuoperceptual task [the Children's Embedded Figure Test (CEFT)] and a…
Descriptors: Asperger Syndrome, Autism, Spatial Ability, Visual Perception
Verte, Sylvie; Geurts, Hilde M.; Roeyers, Herbert; Oosterlaan, Jaap; Sergeant, Joseph A. – Journal of Autism and Developmental Disorders, 2006
The aim of this study was to investigate whether children with high-functioning autism (HFA), Asperger's syndrome (AS), and pervasive developmental disorder not otherwise specified (PDDNOS) can be differentiated from each other and from normal controls on their neurocognitive executive functioning (EF) profile. Children with HFA and AS showed the…
Descriptors: Children, Pervasive Developmental Disorders, Control Groups, Comparative Analysis
Koyama, Tomonori; Tachimori, Hisateru; Osada, Hirokazu; Kurita, Hiroshi – Journal of Autism and Developmental Disorders, 2006
Age- and IQ-balanced 27 children with high-functioning (IQ greater than or equal to 70) pervasive developmental disorder not otherwise specified (HPDDNOS) and 27 children with attention-deficit/hyperactivity disorder (ADHD) were compared on the Japanese version of Wechsler Intelligence Scale for Children Third Edition (WISC-III) and the Childhood…
Descriptors: Cognitive Processes, Symptoms (Individual Disorders), Pervasive Developmental Disorders, Attention Deficit Disorders
Goldberg, M. C.; Mostofsky, S. H.; Cutting, L. E.; Mahone, E. M.; Astor, B. C.; Denckla, M. B.; Landa, R. J. – Journal of Autism and Developmental Disorders, 2005
Background: The executive functions of inhibition, planning, flexible shifting of actions, and working memory are commonly reported to be impaired in neurodevelopmental disorders. Method: We compared these abilities in children (8?12 years) with high functioning autism (HFA, n = 17), attention deficit-hyperactivity disorder (ADHD, n = 21) and…
Descriptors: Children, Autism, Attention Deficit Disorders, Hyperactivity
Peterson, Candida C. – Journal of Autism and Developmental Disorders, 2005
This study examined theory of mind (ToM) and concepts of human biology (eyes, heart, brain, lungs and mind) in a sample of 67 children, including 25 high functioning children with autism (age 6-13), plus age-matched and preschool comparison groups. Contrary to Baron-Cohen [1989, "Journal of Autism and Developmental Disorders," 19(4),…
Descriptors: Physiology, Autism, Cognitive Processes, Biology
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Jarrold, Christopher; Russell, James – Journal of Autism and Developmental Disorders, 1997
Time taken to count stimuli was compared among three groups each composed of 22 elementary-aged children (with autism, with moderate learning difficulties, and normally developing). Results suggest that children with autism showed a tendency toward an analytic level of processing. While groups differed on measures of counting speeds, children…
Descriptors: Autism, Children, Cognitive Processes, Comparative Analysis
Iarocci, Grace; Burack, Jacob A. – Journal of Autism and Developmental Disorders, 2004
The focus of the present study was to examine covert orienting responses to peripheral flash cues among children with autism in a situation where attentional processes were taxed by the presence of distractors in the visual field. Fourteen children with autism (MA = 6-7 years) were compared to their MA-matched peers without autism on a forced…
Descriptors: Visual Perception, Cues, Children, Autism