Autistic individuals are twice as likely to meet criteria for anxiety than neurotypical children; yet we lack understanding of early presentations of anxiety in young autistic children, especially those with cognitive impairment. This study is the first to utilize an autism-specific anxiety diagnostic interview with 28 preschool cognitively…

This study examined the effect of a serial multiple exemplar training (S-MET) procedure on bidirectional naming (BiN) in four preschool children diagnosed with autism spectrum disorder (ASD). A non-concurrent multiple baseline design was used to evaluate the effects of training listener and speaker behavior for one stimulus at a time until BiN…

This study adds to the existing pool of knowledge regarding the imitative behavior of children with autism spectrum disorder (ASD). Methods: The over-imitation behaviors of preschool children with ASD were compared to age-matched typically developing (TD) children. Results: The hypothesis was that the TD children would over-imitate to a much…

Multiple contemporary theories emphasize the quantity and quality of child vocalizations for promoting spoken language acquisition. Yet, empirical evidence for facilitating vocal development is strikingly lacking including for children with autism spectrum disorder (ASD) who have difficulty developing language. We evaluate use of contingent…

Executive function is an area of challenge for both children with fetal alcohol spectrum disorders (FASD) and children with autism spectrum disorder (ASD). Parent ratings of everyday executive function relate to a range of outcomes, including social functioning in ASD. Comparisons between FASD and ASD have revealed both overlapping and distinct…

The current study examined vocalizations that occurred during training of the Picture Exchange Communication System for three U.S. preschool-age participants with autism spectrum disorder. In Phase IV, the protocol incorporates a delay to reinforcement in an effort to encourage vocalizations; however, the manual does not suggest additional…

Best practice for the assessment of autism spectrum disorder (ASD) symptom severity relies on clinician ratings of the Autism Diagnostic Observation Schedule, 2nd Edition (ADOS-2), but the association of these ratings with objective measures of children's social gaze and smiling is unknown. Sixty-six preschool-age children (49 boys, M =…

Atypical habituation to repetitive information has been commonly reported in Autism Spectrum Disorder (ASD) but it is not yet clear whether similar abnormalities are present in Neurofibromatosis Type 1 (NF1). We employed a cross-syndrome design using a novel eye tracking paradigm to measure habituation in preschoolers with NF1, children with…

Alterations in the development of attention control and learning have been associated with autism and can be measured using the "antisaccade task," which assesses a child's ability to make an oculomotor response away from a distracting stimulus, and learn to instead anticipate a later reward. We aimed to assess these cognitive processes…

Previous studies suggest that autism spectrum disorders are characterized by alterations in the microbiota-gut-brain axis. Probiotics may modify the composition and the functionality of the gut microbiota of autism spectrum disorder individuals, with possible cascading effects on brain function. In this study, we analyzed possible brain…

Few studies have reported outcomes from the delivery of naturalistic developmental behavioral interventions (NDBI) in group-based community care. Further, while the importance of inclusion for autistic individuals is well established, there is little research on the feasibility of community-based inclusion programs for preschool-aged autistic…

Perspective taking refers to the ability to understand others' thoughts, feelings and perspectives. From previous studies, it emerges that children with a diagnosis of autism spectrum disorder show many difficulties in understanding the other's point of view, especially in terms of thoughts and emotions. The aims of the present study were: (1) to…

Autistic people are often portrayed as lacking empathy. Yet they are not indifferent to others' feelings. To advance our understanding of the early development of empathy in autistic children, this longitudinal study followed the development of four empathy abilities: emotion contagion, attention to others, emotion acknowledgment, and prosocial…

Joint attention is an important developmental skill. This series of studies investigated the teaching of component joint attention skills to 10 children with autism ranging in age from three to five years. The goal was to teach gaze shifting within a joint attention interaction. An additional goal was to expand some participants' community of…

Previous studies have explored cognitive disabilities experienced by autistic children between the ages of 2 and 5 who attend special schools. However, there is still debate regarding the onset, scope, and causes of these problems, particularly when considering incarnate biases that may arise from affective notions. Early affective issues could…