Aggressive behaviors are common among youth with autism spectrum disorder (ASD) and correlate with pervasive social-emotional difficulties. Communication skill is an important correlate of disruptive behavior in typical development, and clarification of links between communication and aggression in ASD may inform intervention methods. We…

Deficient social communication and interaction behaviors are a hallmark feature of individuals with autism spectrum disorder. These social communication and interaction deficits potentially stem from problems with explicit social cognition (i.e. processes that are controlled and largely conscious) as well as with implicit social cognition (i.e.…

Parental adjustment, parenting behaviors, and child routines have been linked to internalizing and externalizing child behavior. The purpose of the present study was to evaluate a comprehensive model examining relations among these variables in children with ASD and their parents. Based on Sameroff's Transactional Model of Development (Sameroff…

As youth with autism spectrum disorder (ASD) are more likely to experience anxiety than youth in the general population, investigation of associated factors is important for diagnosis and treatment. The present study extended prior research by examining factors associated with caregiver-reported anxiety in 2662 youth (mean age = 8.82 years) with…

The current study was a 7-year follow-up of 74 6-12 year old children with Pervasive Developmental Disorder-Not Otherwise Specified. We examined the rates and 7 year stability of comorbid psychiatric diagnoses as ascertained with the Diagnostic Interview Schedule for Children: Parent version at ages 6-12 and again at ages 12-20. Also, we examined…

This longitudinal study investigated whether variation in the oxytocin receptor gene (OXTR) and early parent-child interactions predicted later empathic behavior in 84 toddlers at high or low familial risk for autism spectrum disorder. Two well-studied OXTR single-nucleotide polymorphisms, rs53576 and rs2254298, were examined. Parent-child…

Daily living skills standard scores on the Vineland Adaptive Behavior Scales-2nd edition were examined in 417 adolescents from the Simons Simplex Collection. All participants had at least average intelligence and a diagnosis of autism spectrum disorder. Descriptive statistics and binary logistic regressions were used to examine the prevalence and…

Psychotropic medication use and its relationship to autism spectrum core features were examined in a well-characterized but nonstratified North American sample (N = 1605) of children/adolescents diagnosed with autism spectrum disorders utilizing the "Autism Diagnostic Observation Schedule" and the "Autism Diagnostic…

Background: It is well recognised that parents of children with autism spectrum disorder (ASD) often experience clinically significant levels of stress and depression. This study examined which ASD characteristic best predicted parental distress. Method: Parents of 109 children aged between 4 and 12 (M age = 7.89, SD = 2.43) completed self-report…

Objective: This study investigated the developmental course of autistic traits in a nationally representative sample of subjects 7 to 13 years of age. Method: The parents of 6,539 children in the Avon Longitudinal Study of Parents and Children completed the Social and Communication Disorders Checklist at ages 7, 10, and 13. The phenotypic…

The current study evaluated risk factors for the occurrence, frequency and severity of challenging behavior among a sample of individuals with a diagnosis of autism, under the age of eighteen, in Ireland. Age, gender, hours of intervention received, age at diagnosis, presence of challenging behavior at diagnosis and treatment type at diagnosis…

Background: Males with fragile X syndrome and autism (FXS/autism) represent a distinct subgroup of males with FXS at risk for markedly poorer outcomes. Early identification and intervention can improve outcomes for males with autism spectrum disorder. Method: To advance the development of a specialised autism screening tool for young males with…

This study examined differential profiles of behavioural characteristics predictive of successful inclusion in mainstream education for children with autism spectrum disorders (ASD) and comparison students. Multiple regression analyses using behavioural ratings from parents, teachers and peers found some evidence for differential profiles…

Later-born siblings of children with autism spectrum disorder (Sibs-ASD) are at elevated risk for social impairments. Two putative predictors of later social impairment--measures of responding to joint attention and weighted triadic communication--were examined in a sample of 43 Sibs-ASD who were followed from 15 to 34 months of age. Results…

Challenging behaviors were assessed in 313 children, and it was demonstrated that children with autism spectrum disorders (ASD) exhibited greater levels of challenging behavior than both normally developing controls and children with psychopathology or atypical development. Next, we examined the relation between challenging behaviors and symptoms…