Autism spectrum disorder is a neurodevelopmental condition characterized by social communication difficulties and restricted, repetitive behaviors. Autism spectrum disorder is highly co-morbid with other neuro-psychiatric disorders such as attention deficit hyperactivity disorder, anxiety, and depression. However, research on post-traumatic stress…

Students with ASD frequently experience anxiety disorders as a co-occurring condition (Kent and Simonoff in Anxiety Child Adolesc Autism Spectr Disord. https://doi.org/10.1016/b978-0-12-805122-1.00002-8, 2017). Symptoms related to anxiety disorders affect students with ASD in a variety of domains, including academic performance, inclusion…

The clinical diagnostic process for autism is complex, especially because of the high co-occurrence with other neurodevelopmental and mental health conditions (Gillberg, 2010; Lai et al., 2019). Diagnosis is more complicated in youth and adults than in younger children because life experience and development affect presentation. In particular, it…

The COVID-19 pandemic continues to have a detrimental impact on individuals with disabilities. Data from FAIR Health's FH® NPIC (National Private Insurance Claims) database, one of the nation's largest databases of private insurance claim records, were analyzed to understand the experiences of individuals with ASD in the COVID-19 pandemic.…

This study investigated motor preparation and action-consequence prediction using the lateralized readiness potential (LRP). Motor impairments are common in autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD), which commonly co-occur. Alterations in predictive processes may impact motor planning. Whether motor…

Heightened attention towards negative information is characteristic of depression. Evidence is emerging for a negative attentional bias in Autism spectrum disorder (ASD), perhaps driven by the high comorbidity between ASD and depression. We investigated whether ASD is characterised by a negative attentional bias and whether this can be explained…

There have been significant efforts to develop, adapt, and test interventions targeting the co-occurring mental health conditions common among autistic youth, with several extant narrative and systematic reviews demonstrating the efficacy of these interventions. Yet, a methodological analysis of the literature testing these interventions,…

Self-determination (SD) is linked to autonomy and better adult outcomes. Adults with autism spectrum disorder (ASD) are often less independent than cognitively matched peers. Given the frequency with which depression co-occurs in ASD and the established association between depression and SD, we sought to evaluate the influence of both ASD severity…

The current study explores functioning in individuals with co-occurring Autism Spectrum Disorder and Down Syndrome (ASD+DS; n = 23), individuals with ASD and cognitive impairment (ASD+ID; n = 99) and individuals with idiopathic ID (n = 38). ANCOVA results revealed that individuals with ASD+DS showed strengths in behavioral functioning compared to…

Children with autism spectrum disorder (ASD) and children with attention deficit/hyperactivity disorder (ADHD) both experience behavioral and social difficulties. Prior research has shown that when these disorders co-occur, behavioral symptoms associated with both disorders may be more severe. There is only limited research on the impact of ASD +…

Background: The purpose of this study was to assess the prevalence of unknown comorbid mental disorders in individuals with mild/moderate intellectual disability (ID) with/without autism spectrum disorders (ASD) and to compare the severity of challenging behavior with respect to the comorbidity of ASD and comorbid psychiatric disorders. Methods:…

Sleep disorders (SD) are common in autism spectrum disorder (ASD), yet relatively little is known about the potential genetic mechanisms involved in SD and ASD comorbidity. The current study begins to fill this gap with a gene enrichment study that (1) identifies risk genes that contribute to both SD and ASD which implicate circadian entrainment,…

Many caregivers of autistic people experience mental health issues, and the impact of disruptions due to COVID-19 may present additional challenges for these individuals. This study characterized caregiver stress, anxiety, and resilient coping during COVID-19 and investigated the impact of COVID-19 disruptions, demographic variables, and resilient…

Anxiety and autism spectrum disorder (ASD) commonly co-occur, but school-based assessment practices surrounding identification of co-occurring presentations are not well understood. This study examined school psychologists' assessment practices for anxiety in students with ASD, perceptions of their role in the assessment process, and perceived…

Exploration of potential preliminary screeners, and examination of social intervention outcomes for effects on comorbid symptoms is imperative. The Child Behavior Checklist (CBCL; Achenbach & Rescorla, Achenbach and Rescorla, Manual for the ASEBA school-age forms & profiles, University of Vermont, Research Center for Children, Youth &…