Diminished responsivity to reward incentives is a key contributor to the social-communication problems seen in autism spectrum disorders (ASDs). Social motivation theories suggest that individuals with ASD do not experience social interactions as rewarding, leading to negative consequences for the development of brain circuitry subserving social information. In this study, we examined neural re...

The influence of the broader autism phenotype (BAP) on the adjustment of siblings of children with autism has previously been researched mainly in Western cultures. The present research evaluated a diathesis-stress model of sibling adjustment using a questionnaire study including 80 and 75 mother-typically developing sibling dyads in Taiwan and the United Kingdom (UK). UK siblings reported elev...

Introduction As described throughout this book, typical observers exhibit remarkable sensitivity to the social information conveyed by the bodily movement of other people. While researchers have historically motivated their studies of the perception of human movement by asserting that successful social behavior depends on it (for review see Blake & Shiffrar, 2007), empirical evidence for this l...

Autism spectrum disorder (ASD) comprises a range of neurological conditions that affect individuals' ability to communicate and interact with others. People with ASD often exhibit marked qualitative difficulties in social interaction, communication, and behavior. Alterations in neurite arborization and dendritic spine morphology, including size, shape, and number, are hallmarks of almost all ne...

The recent Diagnostic and Statistical Manual of Mental Disorders-Fifth Edition (DSM-5) reformulation of autism spectrum disorder has received empirical support from North American and UK samples. Autism spectrum disorder is an increasingly global diagnosis, and research is needed to discover how well it generalises beyond North America and the United Kingdom. We tested the applicability of the ...

Background Autism spectrum disorder (ASD), a developmental disorder of early childhood onset, affects males four times more frequently than females, suggesting a role for the sex chromosomes. In this study, we describe a family with ASD in which a predicted pathogenic nonsense mutation in the X-chromosome gene RAB39B segregates with ASD phenotype. Methods Clinical phenotyping, microarray, and...

BACKGROUND Empathy is a vital component for social understanding involving the ability to recognise emotion (cognitive empathy) and provide an appropriate affective response (emotional empathy). Autism spectrum conditions have been described as disorders of empathy. First-degree relatives may show some mild traits of the autism spectrum, the broader autism phenotype (BAP). Whether both cognitiv...

The validity of the Parental Concerns Questionnaire, a brief screening checklist assessing the presence and severity of 13 developmental and behavioral concerns expressed by parents of children with autism spectrum disorders, was determined in 53 children ages 4 to 10 years with a clinical diagnosis of autism spectrum disorder and 48 age-matched typically developing controls. Parents completed ...

BACKGROUND Very little is known about the context of caregiving by parents of adults with autism or about the perceived impacts of continued patterns of co-residence vs. out-of-family living. In the present study, maternal assessments of residential status, involvement with adult children living in a non-family setting, and the impacts on mothers of their residential arrangements were examined....