Individuals diagnosed with autism spectrum disorder (ASD) who engage in stereotypy may also emit a prior, temporally contiguous, high-risk response to access stereotypic behaviors. For example, the participant in this study who was diagnosed with ASD engaged in a chained response that included elopement, often in unsafe locations, to access light…

The relationship between emotion regulation, social interaction and different types of restricted and repetitive behaviors is poorly understood. In the present study, structural equation modeling based on information about 239 individuals with autism was used to examine whether emotion regulation and social communication were associated with…

Externalizing behaviors in individuals with autism spectrum disorder (ASD) are often either reduced or elevated compared to healthy controls (HCs). This study investigated the moderating role of context in ASD by comparing 32 individuals with ASD to 40 HCs during a social and a non-social provocation task. Compared to HCs, individuals with ASD…

The social communicative deficits and repetitive behaviours seen in Autism Spectrum Disorder (ASD) may be affected by altered stimulus salience and reward attribution. The present study used eye tracking and a behavioural measure to index effort expenditure, arousal, and attention, during viewing of images depicting social scenes and…

Several neurodevelopmental disorders are associated with preference for routine and challenging behavior following changes to routines. We examine individuals with Prader-Willi syndrome, who show elevated levels of this behavior, to better understand how previous experience of a routine can affect challenging behavior elicited by disruption to…

Recently the "DRD3" gene has been associated with ASD in two independent samples. Follow up analysis of the risk allele of the SNP rs167771 in 91 subjects revealed a significant association with a specific type of repetitive behavior: the factor "insistence on sameness" (IS) derived from the Autism Diagnostic Interview. This risk allele was…

This study reviewed the literature on the clinical features of Asperger Syndrome, a form of autism, looking for evidence that a tendency toward violence is common in individuals with the syndrome. Although many studies were excluded on the basis of inadequate data, findings of remaining studies did not support the speculation that violence is…

The effectiveness of Auditory Integration Training (AIT) in 8 autistic individuals (ages 4-21) was evaluated using repeated multiple criteria assessment over a 3-month period. Compared to matched controls, subjects' scores improved on the Aberrant Behavior Checklist and Fisher's Auditory Problems Checklist. AIT did not decrease sound sensitivity.…

A study examined the cognitive and behavioral profiles in 10 individuals (ages 14-51) with Smith-Magenis syndrome. Results found the individuals showed significant relative weaknesses in sequential processing and strengths in naming a partially completed drawing, identifying things, and in reading/decoding. Behavioral findings indicated…

This study examined Autism Diagnostic Interviews Revised (ADI-R) data for 69 autistic subjects from multiplex (MP) families (with more than one autistic member) and 88 autistic subjects from singleton (SP) families (with only one autistic member). Multivariate analysis revealed no differences between verbal or nonverbal MP and SP groups for ADI-R…

This study investigated demographic and phenomenological characteristics of obsessive compulsive disorder (OCD) in nine adults with Down syndrome (DS), and possible effects on adaptive behavior. Results suggest OCD is more common in the DS population than the non-DS population. Ordering and tidiness was the most common form of OCD found, and…

A study examined the relationship between neuroimaging findings and the behavioral characteristics of 29 patients with tuberous sclerosis. Findings indicate a positive linear relationship between a patient's total number of tubers and degree of intellectual impairment. The number of tubers in the cerebellum was associated with more autistic…

Data on sleep behavior were gathered on 100 children (ages 2-11) with pervasive developmental disorders. Slightly more than half of parents reported a sleep problem in their child. All of the children exhibited longer sleep onset times and greater fragmentation of sleep than that reported for age-matched community norms. (Contains references.)…

Comparison of 28 young children with autism, 29 children with other developmental disabilities, and 28 typical children found that autistic children were significantly less compliant with parental prohibitions than were control groups. This behavior correlated with chronological age, not with mental age, language development, or parental behavior.…

Four students (ages 4-6) with developmental disabilities who exhibited challenging behaviors in teaching situations were exposed to high intensity and low intensity social interaction in a play situation and a task situation. Interaction intensity made no difference in students' behavior. Two students exhibited task avoidance and two exhibited…