<p dir="ltr">Excel file with participants total scores for subscales and total scales on ADHD/ASD/Anxiety/Sensory processing questionnaires collected through Qualtrics. A second file with the PsychoPy code and set up to run this data on is also added</p><p dir="ltr"><b>Study Summary</b><br>This study explores the links between sensory processing difficulties and traits associated with Attention-Deficit/Hyperactivity Disorder (ADHD) and Autism Spectrum Disorder (ASD), with a particular focus on the potential mediating role of anxiety. While both conditions have been independently linked to sensory atypicalities, prior psychophysical research has predominantly centred on ASD, leaving a gap in ADHD-focused investigation.</p><p dir="ltr">To address this, we employed a visual orientation discrimination task using a method of constant stimuli within a two-alternative forced choice paradigm. An adaptive, randomly interleaved procedure with a one-up, three-down rule was used to determine perceptual thresholds. These thresholds were analysed in relation to individual differences in ADHD, ASD, and anxiety traits through correlational analyses. A mediation model was then applied to assess whether anxiety contributes to the relationship between neurodevelopmental traits and sensory processing.</p><p dir="ltr">Our findings show that both ADHD and ASD traits are similarly linked to altered sensory discrimination. However, trait levels of panic and generalised anxiety were specifically connected to the ADHD-Hyperactive dimension and corresponding sensory thresholds. No such anxiety-related effects were observed in association with ASD traits.</p><p dir="ltr">These results indicate that anxiety, particularly panic and generalised forms, may serve as a key intermediary factor in the relationship between ADHD traits and sensory function, highlighting the need to consider comorbid psychological factors in sensory research on neurodevelopmental conditions.</p>
Funding
University of Sheffield Institutional Open Access Fund