Temporal progression of pupil dilation and gaze behavior to emotion expressions in preschoolers with autism spectrum disorder.

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ID: 278618
2024
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Abstract
Previous work has shown divergent pupil dilation (PD) and gaze behavior in individuals with autism spectrum disorder (ASD), which may relate to the development of social difficulties in early life. Here, we investigated temporal dynamics of both phenotypes during naturalistic videos of a person displaying facial emotion expressions in 61 autistic and 61 non-autistic preschoolers. PD was segmented into three serial time components derived from a principal component analysis. Growth curve analysis was applied to analyze changes in looking time on eye and mouth regions over time. Groups did not differ in PD time components. Growth curve analysis revealed initially shorter looking times on the eyes and longer looking times on the mouth in autistic versus non-autistic preschoolers. However, a reversion of this pattern was observed over time, suggesting a delayed compensatory increase in eye attention during prolonged viewing periods in autistic children. Positive and negative associations of PD components and gaze behavior over time indicated a dynamic temporal relationship during emotion viewing. Our findings emphasize the need to apply time-sensitive measures in ecologically valid research, which may index etiological mechanisms of social difficulties in ASD.
Reference Key
polzer2024temporalscientific Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Polzer, Leonie;Schenk, Marc;Raji, Naisan;Kleber, Solvejg;Lemler, Christian;Kitzerow-Cleven, Janina;Kim, Ziyon;Freitag, Christine M;Bast, Nico;
Journal Scientific reports
Year 2024
DOI
10.1038/s41598-024-58480-2
URL
Keywords Keywords not found

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