Brief Report: Pupillometry, Visual Perception, and ASD Features in a Task-Switching Paradigm
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We assessed the association between dynamic changes in pupil response in the context of visual perception and quantitative measures of the autism phenotype in healthy adults. Using Navon stimuli in a task-switching paradigm, participants were instructed to identify global or local information based on a cue. Multiple pupil response trajectories across conditions were identified. We combined trajectory patterns for global and local conditions and used data-driven methods to identify three distinct pupil trajectory sub-groups. We report higher scores on quantitative measures of autism features in individuals who demonstrated an increased change in pupil diameter across both conditions. Results demonstrate the use of individualized pupil response trajectories in order to quantitatively characterize visual perception associated with the broader autism phenotype (BAP).
KeywordsPupillometry Eye tracking Visual perception Attention Autism
The authors are grateful to Kayleigh M. Adamson for their help with recruitment and data collection. This study was funded by the Simons Foundation, SFARI Explorer Award #350225. We would like to extend our sincere gratitude to the individuals who participated in this study.
ASD and VT designed the research. ASD programmed the task and collected the data. YH and ASD completed data analysis. ASD, YH and VT interpreted the data. ASD drafted the manuscript. ASD, YH and VT critically revised the manuscript. All authors have read and approved the final version of the manuscript. All authors reviewed the manuscript.
Compliance with Ethical Standards
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Informed consent was obtained from all individual participants included in the study.
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