Oculomotor Function in Children and Adolescents with Autism, ADHD or Co-occurring Autism and ADHD.
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| Title: | Oculomotor Function in Children and Adolescents with Autism, ADHD or Co-occurring Autism and ADHD. |
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| Authors: | Forbes, Elana J. (AUTHOR), Tiego, Jeggan (AUTHOR), Langmead, Joshua (AUTHOR), Unruh, Kathryn E. (AUTHOR), Mosconi, Matthew W. (AUTHOR), Finlay, Amy (AUTHOR), Kallady, Kathryn (AUTHOR), Maclachlan, Lydia (AUTHOR), Moses, Mia (AUTHOR), Cappel, Kai (AUTHOR), Knott, Rachael (AUTHOR), Chau, Tracey (AUTHOR), Sindhu, Vishnu Priya Mohanakumar (AUTHOR), Bellato, Alessio (AUTHOR), Groom, Madeleine J. (AUTHOR), Kerestes, Rebecca (AUTHOR), Bellgrove, Mark A. (AUTHOR), Johnson, Beth P. (AUTHOR) |
| Source: | Journal of Autism & Developmental Disorders. Jun2026, Vol. 56 Issue 6, p2391-2407. 17p. |
| Subjects: | Attention-deficit hyperactivity disorder, Task performance, Data analysis, Autism, Multiple regression analysis, Descriptive statistics, Saccadic eye movements, Statistics, Asperger's syndrome, Comorbidity, Eye movements, Adolescence, Children |
| Geographic Terms: | Australia |
| Abstract: | Oculomotor characteristics, including accuracy, timing, and sensorimotor processing, are considered sensitive intermediate phenotypes for understanding the etiology of neurodevelopmental conditions, such as autism and ADHD. Oculomotor characteristics have predominantly been studied separately in autism and ADHD. Despite the high rates of co-occurrence between these conditions, only one study has investigated oculomotor processes among those with co-occurring autism + ADHD. Four hundred and five (n = 405; 226 males) Australian children and adolescents aged 4 to 18 years (M = 9.64 years; SD = 3.20 years) with ADHD (n = 64), autism (n = 66), autism + ADHD (n = 146), or neurotypical individuals (n = 129) were compared across four different oculomotor tasks: visually guided saccade, anti-saccade, sinusoidal pursuit and step-ramp pursuit. Confirmatory analyses were conducted using separate datasets acquired from the University of Nottingham UK (n = 17 autism, n = 22 ADHD, n = 32 autism + ADHD, n = 30 neurotypical) and University of Kansas USA (n = 29 autism, n = 41 neurotypical). Linear mixed effect models controlling for sex, age and family revealed that children and adolescents with autism + ADHD exhibited increased variability in the accuracy of the final saccadic eye position compared to neurotypical children and adolescents. Autistic children and adolescents demonstrated a greater number of catch-up saccades during step-ramp pursuit compared to neurotypical children and adolescents. These findings suggest that select differences in saccadic precision are unique to autistic individuals with co-occurring ADHD, indicating that measuring basic sensorimotor processes may be useful for parsing neurodevelopment and clinical heterogeneity in autism. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Autism & Developmental Disorders is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
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