Fatigue is associated with numerous harmful physical and mental health outcomes. Despite the established relationship between sleep and fatigue, research examining sleep variability within a person (i.e. intraindividual variability; IIV) and fatigue is limited. In addition, the associations between child and parent sleep regarding parent fatigue…

Mental health conditions such as anxiety, depression, aggression, and inattention are common in autistic youth and are challenging to treat by community providers. We aim to parse the heterogeneity of autism based on dimensions of executive function and determine whether specific executive function profiles are differentially related to…

Although food selectivity and so-called "picky" eating are well documented in autism spectrum disorder, emotion-linked eating has rarely been investigated. This study examined emotion-linked over- and under-eating based on parent ratings of these behaviors in 4- to 17-year-old children with autism spectrum disorder (n = 190) as compared…

Starting early in life, autistics are characterized as having atypical facial expressions, as well as decreased positive and increased negative affect. The literature on autistic facial expressions remains small, however, with disparate methods and results suggesting limited understanding of common autistic emotions. Furthermore, unlike…

Longitudinal analyses have revealed informative patterns about health, mental health, adaptive skills, autism symptoms, and social skills during the transition to adulthood for autistic individuals. This study expands on these findings by investigating the trajectories of positive affect from age 15 to 30 years using a heterogeneous cohort (n =…

Increased reactivity to daily stressors is associated with mental health difficulties, which are common in autistic individuals. We investigated affective reactivity to daily-life stress, cognitive emotion regulation, and their link with co-occurring mental health symptoms in adolescents and young adults with autism. A 6-day ecological momentary…

Adolescents with autism spectrum disorder are less physically active compared with their age-related peers. Despite the many benefits of physical activity, little is known about why they are predominantly inactive. To date, research has rarely included adolescent's perspectives, and little is known about how wider social, systemic, and policy…

Differences in social communication and interaction styles between autistic and typically developing have been studied in isolation and not in the context of real-world social interaction. The current study addresses this "blind spot" by examining whether real-world social interaction quality for autistic adults differs when interacting…

The present study investigated how the eye contact perception of ingroup and outgroup faces by Japanese adults with high-functioning autism spectrum disorder differed from that of age-, sex-, and IQ-matched typically developing individuals. The autism spectrum disorder and typically developing individuals were equally likely to perceive subtly…

Children with autism spectrum disorder exhibit significant difficulties with emotion regulation. Respiratory sinus arrhythmia is a biomarker for processes related to emotion regulation, with higher baseline rates linked to beneficial outcomes. Although reduction in respiratory sinus arrhythmia in response to challenge can index adaptive processes…

Does the belief that a face belongs to an individual with autism affect recognition of that face? To address this question, we used the "inversion effect" as a marker of face recognition. In Experiment 1, participants completed a recognition task involving upright and inverted faces labelled as either 'regular' or 'autistic'. In reality,…

Associations between parent critical attitudes (a component of the Expressed Emotion construct) and behavior problems have been relatively well established in adolescents and young adults with autism spectrum disorder, but use of systems adapted for children with autism spectrum disorder and additional investigations with younger samples are…

Parenting is a cognitive, emotional, and behavioral endeavor, where parents' control capacities, including executive functions and active control coping, help parents to guide and regulate interactions with their children; yet limited research investigates how these capacities are associated with parent-child affective regulation processes during…

This study examined delay of gratification behaviors in preschool-aged children with and without autism spectrum disorder. Recent research has found that elementary-aged children with autism spectrum disorder showed challenges with delay of gratification and that there were individual differences in terms of children's behaviors during the wait.…

This study explored the impact of parental sleep quality on the experience of behavior problems by children with autism spectrum disorder. A 14-day daily diary was used in a sample of 176 mother-father couples. Dyadic multilevel models were conducted to examine the between-person and within-person effects of previous-night sleep quality on…