This study compared the use of delivering a single instruction (e.g., Who is it?) versus varied instructions (e.g., What's their name? Who is this? What about this one?) when teaching three children diagnosed with autism spectrum disorder (ASD) novel expressive label targets via direct telehealth. The present investigation utilized an adapted…

Background: Prelinguistic communication complexity refers to the use of different communication forms such as eye gaze, gestures and vocalisations and the degree to which these forms are coordinated and how directed to a communication partner. To date, little is known about the relationship between prelinguistic communication complexity and…

Purpose: The present study explored the extent to which early prelinguistic communication skills predict expressive language in toddlers with autistic siblings (Sibs-autism), who are known to be at high likelihood for autism and language disorder, and a comparison group of toddlers with non-autistic older siblings (Sibs-NA). Method: Participants…

Spoken narrative skills are crucial to the social and academic success of young people; however, research indicates that this may be an area of challenge for autistic adolescents. Most previous studies have used narrative elicitation tasks that incorporate visual support, and little is known about how autistic adolescents perform on less…

Developmental difference is a common characteristic of autism spectrum disorder (ASD) with unclear sex differences. The current study included 610 children with ASD, aged between 2 and 7 years, with completed language profiles. We used a nonparametric item response theory model called Mokken scale analysis to examine the order of acquisition of…

Purpose: Conversational latency entails the temporal feature of turn-taking, which is understudied in autistic children. The current study investigated the influences of child-based and parental factors on conversational latency in autistic children with heterogeneous spoken language abilities. Method: Participants were 46 autistic children aged…

We investigated the influence of developmental and social factors on the age of autism diagnosis (AoD) in a cohort of toddlers living in Chile. A cross-sectional study was conducted among 509 preschool children diagnosed with autism spectrum disorder [M = 40.2 months (SD = 8.6), girls: 32%] in the neurodevelopmental unit of a university clinic in…

Purpose: Autism and fragile X syndrome (FXS) are both associated with pragmatic communication difficulties, but the pattern of strengths and weaknesses varies. Early pragmatic communication skills include using communication for different functions, such as behavior regulation or establishing/maintaining joint attention. This study examines…

Joint attention and imitation are thought to facilitate a developmental cascade of language and social communication skills. Delays in developing these skills may affect the quality of children's social interactions and subsequent language development. We examined how responding to joint attention and object imitation skills predicted rate of…

Previous research links resting frontal gamma power to key developmental outcomes in young neurotypical (NT) children and infants at risk for language impairment. However, it remains unclear whether gamma power is specifically associated with language or with more general cognitive abilities among young children diagnosed with autism spectrum…

While the Autism Diagnostic Observation Schedule, Second Edition (ADOS-2) is considered a "reference standard" measure to observe symptoms of autism spectrum disorder (ASD), little is known about the utility of its Other Abnormal Behaviors or "E codes." This study investigated the unique influence of each E code (overactivity,…

Purpose: The goal of this work was to examine the semantic and syntactic properties of the vocabularies of autistic and non-autistic infants and toddlers to see if children in these two groups know different kinds of words. We focused on both receptive and expressive vocabularies. For expressive vocabulary, we looked only at the "active"…

Parents assessed the development of 12,081 two- to six-year-old children with Autism Spectrum Disorder (ASD) quarterly for three years on five subscales: combinatorial receptive language, expressive language, sociability, sensory awareness, and health. Longer duration of time spent with an adult actively involved in the same activity (termed here…

Improving social communication is a frequent goal of early autism services. However, it is unclear whether existing models of social communication align with the perspectives and priorities of key stakeholders, including parents, teachers, and expert clinicians. Stakeholder perspectives on social communication characteristics and priorities for…

This study examines receptive-expressive language, gross-fine motor skills, and IQ abilities in 78 children, 43 children with an older sibling with autism spectrum disorder (Sibs-ASD) and 35 children with an older sibling with typical development, ranging from 4 to 11 years of age. Depending on age, both groups were divided in preschool and school…