Sleep problems are prevalent in children with neurodevelopmental disabilities and are associated with the expression of restricted and repetitive behaviors (RRBs). Children (n = 57) with autism spectrum disorder (ASD, n = 38) or developmental delay (DD, n = 19) participated in multiple assessments of intellectual ability, ASD symptoms, and RRBs (3…

To identify valid measures of vocal development in young children with autism spectrum disorder in the early stages of language learning, we evaluated the convergent validity, divergent validity, and sensitivity to change (across 12 months) of two measures of vocal communication and two measures of vocal complexity through conventional coding of…

This study examined the relationship between onset status and current functioning using a recently proposed onset classification system in 272 young children with autism spectrum disorder (ASD). Participants were classified into one of the following groups, based on parent report using the Autism Diagnostic Interview-Revised: Early Onset (symptoms…

We describe a protocol with which we achieved a 93% success rate in acquiring high quality MRI scans without the use of sedation in 2.5-4.5 year old children with autism, developmental delays, and typical development. Our main strategy was to conduct MRIs during natural nocturnal sleep in the evenings after the child's normal bedtime.…

Objective: The study was to examine nonverbal communication in young children with autism. Methods: The participants were 23 young children with autism (mean CA = 32.79 months), 23 CA and MA-matched children with developmental delay and 22 18-20-month-old, and 22 13-15-month-old typically developing toddlers and infants. The abbreviated Early…

This single subject design study examined two models of intervention: Denver Model (which merges behavioral, developmental, and relationship-oriented intervention), and PROMPT (a neuro-developmental approach for speech production disorders). Ten young, nonverbal children with autism were matched in pairs and randomized to treatment. They received…

This paper reviews findings from comprehensive early intervention studies with young children with autism and formulates questions that need to be answered to establish efficacious, accessible early treatment. Results suggest that intensive, very early treatment appears to lessen the debilitating effects of autism. Research questions involve…

A study examined the cognitive underpinnings of spontaneous and prompted pretend play in 28 children with autism (ages 2-3), 24 children with developmental disorders, and 26 controls (ages 1-3). Children with autism were significantly delayed on pretend play scores. They also had significant deficits in a theory of mind measure. (Contains…

This study examined the understanding of others' intentions in 21/2- to 5-year-old children with autism and a control group of children with other developmental delays. No significant between-group differences were found, although within-group patterns suggested that children with autism may have a slightly less complex understanding of others'…

Evaluation of social-cognitive skills in 23 young children with autism or other developmental delays found tests involving others' attention were more difficult for children with autism than tests involving others' behavior. However, the typical developmental pattern of first sharing, then following, and then directing attention or behavior was…