Prevalence of developmental disorders (DDs) has been increasing worldwide. This study identifies a trend in their prevalence and incidence, using nationwide population-based data to analyze the characteristics of children with DDs in Korea. The prevalence of DDs steadily increased by more than four times (from 0.6 to 2.5) from 2003 to 2017. Boys…

Purpose: Children with autism spectrum disorders (ASDs) and children with developmental language disorder (DLD) face challenges with pragmatics, but the nature and sources of these difficulties are not fully understood yet. The purpose of this study was to compare the competence of children with ASD and children with DLD in two pragmatics tasks…

Impairments in structural language and pragmatics are well recognized in different neurodevelopmental disorders, yet in clinical work the discrimination of children with various language difficulties into different diagnostic profile is still a major challenge. Using the CCC-2 questionnaire this study assesses and compares language competences in…

This study compared a picture exchange (PE) system and an iPad®-based speech generating device (SGD) when teaching requesting skills to preschoolers with developmental disabilities and limited functional speech. A multiple baseline design with counterbalancing the order of two instruction conditions across participants was applied to compare the…

Purpose: A systematic review was performed to determine the extent to which orthographic facilitation, a strategy to improve word learning, has been demonstrated in the literature for children and adolescents from clinical categories such as developmental language disorders (DLD), autism spectrum disorders (ASD), Down syndrome, dyslexia, hearing…

Purpose: This study aimed to examine the print knowledge of children with autism spectrum disorder (ASD) in comparison to children who have developmental language disorder (DLD) and typically developing (TD) children as well as examine the child and family predictors of print knowledge. Method: A total of 629 preschool children, including 33…

Background: It has been established that people with autism spectrum disorder (ASD) often have difficulties understanding spoken language. Understanding reflexive and clitic pronouns is vital to establishing reference-based inference, but it is as yet unclear whether such constructions pose specific difficulties for those with ASD. Pronoun…

Purpose: Play is a critical aspect of children's development, and researchers have long argued that symbolic deficits in play may be diagnostic of developmental disabilities. This study examined whether deficits in play emerge as a function of developmental disabilities and whether our perceptions of play are colored by differences in language and…

Challenging behavior exhibited by young children with neurodevelopmental disabilities is known to negatively affect their optimal development and families' quality of life. Although some support exists for English-speaking parents of children with autism who live in high-resource countries, it is scarce for others. Such disparity may also be…

Autism spectrum disorders (ASDs) are a heterogeneous group of neurodevelopmental conditions that vary in both etiology and phenotypic expression. Expressions of ASD characterized by a more severe phenotype, including autism with intellectual disability (ASD + ID), autism with a history of developmental regression (ASD + R), and minimally verbal…

Jack and Pelphrey provide a systematic review of neuroimaging studies in understudied populations within the autistic spectrum, focussing specifically on those with minimal verbal ability, intellectual disability and developmental regression. Despite accounting for nearly a third of the autistic spectrum, the number of studies focussing on these…

Purpose: Identifying risk factors associated with neurodevelopmental disorders is an important line of research, as it will lead to earlier identification of children who could benefit from interventions that support optimal developmental outcomes. The primary goal of this review was to summarize research on risk factors associated with autism…

Developmental disorders are a complex concept relevant to the multidisciplinary approach of children with special educational needs. The person with a developmental disorder is affected both by integrity -- the complete somatic and psychological structure and functionality -- and the ability to be a psycho-biological wholeness, the two aspects…

Conversations about the past support the development of autobiographical memory. Parents' strategies to elicit child's participation and recall during past event conversations were compared across three school-age diagnostic groups: autism spectrum disorder (ASD, n = 11), developmental language disorders (n = 11) and typically developing (TD,…

We compared loss and gain in communication from 1 to 2 years in children later diagnosed with autism spectrum disorder (n = 41), language impairment (n = 110) and in children with typical language development at 7 years (n = 831). Participants were selected from a prospective population cohort study of child language (the Early Language in…