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Miller, Haylie L.; Ragozzino, Michael E.; Cook, Edwin H.; Sweeney, John A.; Mosconi, Matthew W. – Journal of Autism and Developmental Disorders, 2015
The neurocognitive impairments associated with restricted and repetitive behaviors (RRBs) in autism spectrum disorder (ASD) are not yet clear. Prior studies indicate that individuals with ASD show reduced cognitive flexibility, which could reflect difficulty shifting from a previously learned response pattern or a failure to maintain a new…
Descriptors: Autism, Pervasive Developmental Disorders, Neurological Impairments, Cognitive Ability
Bowler, Dermot M.; Gaigg, Sebastian B.; Gardiner, John M. – Journal of Autism and Developmental Disorders, 2014
Diminished episodic memory and diminished use of semantic information to aid recall by individuals with autism spectrum disorder (ASD) are both thought to result from diminished relational binding of elements of complex stimuli. To test this hypothesis, we asked high-functioning adults with ASD and typical comparison participants to study grids in…
Descriptors: Adults, Autism, Pervasive Developmental Disorders, Memory
Chabani, Ellahe; Hommel, Bernhard – Journal of Autism and Developmental Disorders, 2014
Individuals with autism spectrum disorders (ASDs) have been assumed to show evidence of abnormal visuospatial processing, which has been attributed to a failure to integrate local features into coherent global Gestalts and/or to a bias towards local processing. As the available data are based on baseline performance only, which does not provide…
Descriptors: Autism, Pervasive Developmental Disorders, Visual Perception, Spatial Ability
Meyer, Brenda J.; Gardiner, John M.; Bowler, Dermot M. – Journal of Autism and Developmental Disorders, 2014
Rehearsal strategies of adults with autism spectrum disorders (ASDs) and demographically matched typically developed (TD) adults were strategically manipulated by cueing participants to either learn, or forget each list word prior to a recognition task. Participants were also asked to distinguish between autonoetic and noetic states of awareness…
Descriptors: Adults, Comparative Analysis, Learning Strategies, Autism
Pillai, Dhanya; Sheppard, Elizabeth; Ropar, Danielle; Marsh, Lauren; Pearson, Amy; Mitchell, Peter – Journal of Autism and Developmental Disorders, 2014
It has been proposed that mentalising involves retrodicting as well as predicting behaviour, by inferring "previous" mental states of a target. This study investigated whether retrodiction is impaired in individuals with autism spectrum disorders (ASD). Participants watched videos of real people reacting to the researcher behaving in one…
Descriptors: Autism, Pervasive Developmental Disorders, Neurological Impairments, Video Technology
Speirs, Samantha J.; Rinehart, Nicole J.; Robinson, Stephen R.; Tonge, Bruce J.; Yelland, Gregory W. – Journal of Autism and Developmental Disorders, 2014
Autism spectrum disorders (ASD) are characterised by a unique pattern of preserved abilities and deficits within and across cognitive domains. The Complex Information Processing Theory proposes this pattern reflects an altered capacity to respond to cognitive demands. This study compared how complexity induced by time constraints on processing…
Descriptors: Autism, Pervasive Developmental Disorders, Cognitive Processes, Executive Function
McGonigle-Chalmers, Margaret; McSweeney, Meabh – Journal of Autism and Developmental Disorders, 2013
15 School-aged high functioning children on the autistic spectrum were compared with a neurotypical cohort on the WISC-III and the KABC-II, to determine the impact of the relatively more strict timing criteria of the former test on the evaluation of nonverbal intelligence. Significant group effects, showing lower performance by the ASD group were…
Descriptors: Autism, Nonverbal Ability, Intelligence Tests, Pervasive Developmental Disorders
Laine, France; Rauzy, Stephane; Tardif, Carole; Gepner, Bruno – Journal of Autism and Developmental Disorders, 2011
Imitation deficits observed among individuals with autism could be partly explained by the excessive speed of biological movements to be perceived and then reproduced. Along with this assumption, slowing down the speed of presentation of these movements might improve their imitative performances. To test this hypothesis, 19 children with autism,…
Descriptors: Autism, Imitation, Down Syndrome, Severe Disabilities
Rajendran, Gnanathusharan; Law, Anna S.; Logie, Robert H.; van der Meulen, Marian; Fraser, Diane; Corley, Martin – Journal of Autism and Developmental Disorders, 2011
Using a modified version of the Virtual Errands Task (VET; McGeorge et al. in "Presence-Teleop Virtual Environ" 10(4):375-383, 2001), we investigated the executive ability of multitasking in 18 high-functioning adolescents with ASD and 18 typically developing adolescents. The VET requires multitasking (Law et al. in "Acta Psychol" 122(1):27-44,…
Descriptors: Autism, Adolescents, Pervasive Developmental Disorders, Cognitive Ability
Lind, Sophie E.; Bowler, Dermot M. – Journal of Autism and Developmental Disorders, 2010
It is widely assumed that children with autism have a diminished understanding of the perception-knowledge relationship, as a specific manifestation of a theory of mind (ToM) impairment. However, such a conclusion may not be justified on the basis of previous studies, which have suffered from significant methodological weaknesses. The current…
Descriptors: Theory of Mind, Perceptual Development, Autism, Research Methodology
Dichter, Gabriel S.; Radonovich, Krestin J.; Turner-Brown, Lauren M.; Lam, Kristen S. L.; Holtzclaw, Tia N.; Bodfish, James W. – Journal of Autism and Developmental Disorders, 2010
Restricted and repetitive behaviors in autism spectrum disorders have been conceptualized to reflect impaired executive functions. In the present study, we investigated the performance of 6-17-year-old children with and without an autism spectrum disorder on a dimension-change card sort task that explicitly indicated sorting rules on every trial.…
Descriptors: Autism, Pervasive Developmental Disorders, Children, Adolescents
Samson, Andrea C.; Hegenloh, Michael – Journal of Autism and Developmental Disorders, 2010
The present paper aims to investigate whether individuals with Asperger syndrome (AS) show global humor processing deficits or whether humor comprehension and appreciation depends on stimulus characteristics. Non-verbal visual puns, semantic and Theory of Mind cartoons were rated on comprehension, funniness and the punchlines were explained. AS…
Descriptors: Theory of Mind, Comparative Analysis, Semantics, Asperger Syndrome
Bowler, Dermot M.; Gaigg, Sebastian B.; Gardiner, John M. – Journal of Autism and Developmental Disorders, 2010
To test the effects of providing relational cues at encoding and/or retrieval on multi-trial, multi-list free recall in adults with high-functioning autism spectrum disorder (ASD), 16 adults with ASD and 16 matched typical adults learned a first followed by a second categorised list of 24 words. Category labels were provided at encoding,…
Descriptors: Cues, Autism, Recall (Psychology), Adults
Martin, Jonathan S.; Poirier, Marie; Bowler, Dermot M. – Journal of Autism and Developmental Disorders, 2010
Although temporal processing has received little attention in the autism literature, there are a number of reasons to suspect that people with autism spectrum disorder (ASD) may have particular difficulties judging the passage of time. The present study tested a group of 20 high-functioning adults with ASD and 20 matched comparison participants on…
Descriptors: Autism, Pervasive Developmental Disorders, Adults, Cognitive Processes
Morsanyi, Kinga; Handley, Simon J.; Evans, Jonathan S. B. T. – Journal of Autism and Developmental Disorders, 2010
The conjunction fallacy has been cited as a classic example of the automatic contextualisation of problems. In two experiments we compared the performance of autistic and typically developing adolescents on a set of conjunction fallacy tasks. Participants with autism were less susceptible to the conjunction fallacy. Experiment 2 also demonstrated…
Descriptors: Control Groups, Autism, Adolescents, Comparative Analysis
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