Temperament is a construct that is relatively stable over time but varies between individuals. Research suggests that children with autism spectrum disorder have a 'reactive' temperament profile when compared to peers with or without disabilities. However, our understanding of how temperament varies within children with autism and how it relates…

Individuals with autism spectrum disorder are more likely than typically developing individuals to experience a range of gastrointestinal abnormalities, including chronic diarrhea, constipation, food sensitivities, and abdominal pain. These gastrointestinal symptoms have been associated with higher levels of irritability and aggressive behavior,…

Extensive research has shown elevated mental health difficulties among parents of children with autism compared to other parents. Although several studies have explored factors related to mental health among parents of children with autism, the factors that influence and promote well-being remain poorly characterised. Parents of young, newly…

Autism spectrum disorder and attention deficit/hyperactivity disorder overlap in several ways, raising questions about the nature of this comorbidity. Rommelse et al. published an innovative review of candidate endophenotypes for autism spectrum disorder and attention deficit/hyperactivity disorder in cognitive and brain domains. They found that…

Genetic liability to autism spectrum disorder (ASD) can be expressed in unaffected relatives through subclinical, genetically meaningful traits, or endophenotypes. This study aimed to identify developmental endophenotypes in parents of individuals with ASD by examining parents' childhood academic development over the school-age period. A cohort of…

While there is a strong sex bias in the presentation of autism, it is unknown whether this bias is also present in subclinical manifestations of autism among relatives, or the broad autism phenotype. This study examined this question and investigated patterns of co-occurrence of broad autism phenotype traits within families of individuals with…

Children with autism spectrum disorder (ASD) tend to be less playful than their typically developing (TD) peers. Although playfulness is considered a personality characteristic, little is known about the stability of this trait in interactions with different caregivers. This study compared the playfulness of children with and without ASD in play…