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…

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…