ArticleJournal of autism and developmental disorders2025
Bright Lights, Silent Signals: Colour-Specific Attention-Arousal Decoupling in Autistic Children Revealed by Eye-Tracking and Pupillometry.
Article in Journal of autism and developmental disorders, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeAtypical visual exploration is widely reported in autism spectrum disorder (ASD), yet little is known about how chromatic properties modulate oculomotor behaviour. This study aims to address this problem.
methodsWe recorded eye movements from 34 children with ASD (6-16 y) and 40 age-matched typically developing (TD) peers while they viewed six picture sets that independently manipulated hue, luminance and saturation. Nine eye-movement metrics were extracted per task and analysed with mixed-effects ANOVAs; false-discovery-rate control (q = .05) and Holm-Bonferroni corrections were applied across 54 planned tests.
resultsAcross all tasks, the ASD group showed a 29% reduction in total fixation time (F = 11.13, q < .001; p
conclusionsChildren with ASD allocate less dwell time and execute fewer, briefer fixations and saccades, especially when stimuli are highly saturated. Because effects persisted after stringent multiple-comparison correction and were independent of pupil size, they likely reflect how brightness changes guide eye movements and moment-to-moment arousal.
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