4.1 Article

Faster social attention disengagement in individuals with higher autism traits

Journal

Publisher

TAYLOR & FRANCIS INC
DOI: 10.1080/13803395.2023.2167943

Keywords

Autism; face processing; face inversion; attention disengagement; saccade; eye-movements

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This study investigates the atypical social attention disengagement in individuals with autism spectrum disorder (ASD) and the broader autism phenotype. Eye-tracking is used to measure the time it takes to disengage attention from a central task-irrelevant face and orient to a peripheral nonsocial target. The results show that individuals with higher autism-like traits have faster saccadic responses in detecting the nonsocial target.
IntroductionAtypical visual and social attention has often been associated with clinically diagnosed autism spectrum disorder (ASD), and with the broader autism phenotype. Atypical social attention is of particular research interest given the importance of facial expressions for social communication, with faces tending to attract and hold attention in neurotypical individuals. In autism, this is not necessarily so, where there is debate about the temporal differences in the ability to disengage attention from a face.MethodThus, we have used eye-tracking to record saccadic latencies as a measure of time to disengage attention from a central task-irrelevant face before orienting to a newly presented peripheral nonsocial target during a gap-overlap task. Neurotypical participants with higher or lower autism-like traits (AT) completed the task that included central stimuli with varied expressions of facial emotion as well as an inverted face.ResultsHigh AT participants demonstrated faster saccadic responses to detect the nonsocial target than low AT participants when disengaging attention from a face. Furthermore, faster saccadic responses were recorded when comparing disengagement from upright to inverted faces in low AT but not in high AT participants.ConclusionsTogether, these results extend findings of atypical social attention disengagement in autism and highlight how differences in attention to faces in the broader autism phenotype can lead to apparently superior task performance under certain conditions. Specifically, autism traits were linked to faster attention orienting to a nonsocial target due to the reduced attentional hold of the task irrelevant face stimuli. The absence of an inversion effect in high AT participants also reinforces the suggestion that they process upright or inverted faces similarly, unlike low AT participants for whom inverted faces are thought to be less socially engaging, thus allowing faster disengagement.

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