The present study investigated the communicative characteristics of challenging behavior documented in children with Autism Spectrum Disorder (ASD), and how those behaviors changed as receptive and expressive language skills changed. Several years of the individual education plans (IEPs), behavior plans, and test scores of three male students from a small non- public school (NPS) were reviewed for this study. Challenging behaviors that served a communicative function showed some signs of diminishing as functional communication increased. While functional communication did show signs of increasing with the acquisition of expressive and receptive language the participants differed in their dependence on prompting to use functional communication in lieu of challenging behavior. Additionally, some of the challenging behaviors were rooted in a difficulty with self-regulation and stimming behavior and didn't appear to serve a communicative function. Given the significant impact challenging behaviors have on the quality life of the children with ASD and their families, more research is needed to better understand the connection between spontaneous and independent functional communication and duration to independent attention to task effects on challenging behavior.
The Development of the Strengthening Skills Program for Autistic Adults: Feasibility & Acceptability
have difficulty with certain aspects of executive function; however, most studies examining executive function have been conducted using tasks that require children to use language to complete the task. As a result, it is unclear whether poor performance on executive function tasks was due to language impairment, to executive function deficits, or both. The purpose of this study is to evaluate whether preschoolers with PLI have deficits in executive function by comprehensively examining inhibition, updating, and mental set shifting using tasks that do and do not required language to complete the tasks.
Twenty-two four and five-year-old preschoolers with PLI and 30 age-matched preschoolers with typical development (TD) completed two sets of computerized executive function tasks that measured inhibition, updating, and mental set shifting. The first set of tasks were language based and the second were visually-based. This permitted us to test the hypothesis that poor performance on executive function tasks results from poor executive function rather than language impairment. A series of one-way analyses of covariance (ANCOVAs) were completed to test whether there was a significant between-group difference on each task after controlling for attention scale scores. In each analysis the between-group factor was group and the covariate was attention scale scores.
Results showed that preschoolers with PLI showed difficulties on a broad range of linguistic and visual executive function tasks even with scores on an attention measure covaried. Executive function deficits were found for linguistic inhibition, linguistic and visual updating, and linguistic and visual mental set shifting. Overall, findings add to evidence showing that the executive functioning deficits of children with PLI is not limited to the language domain, but is more general in nature. Implications for early assessment and intervention will be discussed.