Pupillary Responses Obey Emmert's Law and Co-Vary with Autistic Traits
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| Title: | Pupillary Responses Obey Emmert's Law and Co-Vary with Autistic Traits |
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| Language: | English |
| Authors: | Tortelli, Chiara, Turi, Marco, Burr, David C., Binda, Paola (ORCID |
| Source: | Journal of Autism and Developmental Disorders. Aug 2021 51(8):2908-2919. |
| Availability: | Springer. Available from: Springer Nature. One New York Plaza, Suite 4600, New York, NY 10004. Tel: 800-777-4643; Tel: 212-460-1500; Fax: 212-460-1700; e-mail: customerservice@springernature.com; Web site: https://link.springer.com/ |
| Peer Reviewed: | Y |
| Page Count: | 12 |
| Publication Date: | 2021 |
| Document Type: | Journal Articles Reports - Research |
| Descriptors: | Eye Movements, Visual Stimuli, Autism, Symptoms (Individual Disorders), Individual Differences, Visual Perception |
| DOI: | 10.1007/s10803-020-04718-7 |
| ISSN: | 0162-3257 |
| Abstract: | We measured the pupil response to a light stimulus subject to a size illusion and found that stimuli perceived as larger evoke a stronger pupillary response. The size illusion depends on combining retinal signals with contextual 3D information; contextual processing is thought to vary across individuals, being weaker in individuals with stronger autistic traits. Consistent with this theory, autistic traits correlated negatively with the magnitude of pupil modulations in our sample of neurotypical adults; however, psychophysical measurements of the illusion did not correlate with autistic traits, or with the pupil modulations. This shows that pupillometry provides an accurate objective index of complex perceptual processes, particularly useful for quantifying interindividual differences, and potentially more informative than standard psychophysical measures. |
| Abstractor: | As Provided |
| Entry Date: | 2021 |
| Accession Number: | EJ1302647 |
| Database: | ERIC |
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| Abstract: | We measured the pupil response to a light stimulus subject to a size illusion and found that stimuli perceived as larger evoke a stronger pupillary response. The size illusion depends on combining retinal signals with contextual 3D information; contextual processing is thought to vary across individuals, being weaker in individuals with stronger autistic traits. Consistent with this theory, autistic traits correlated negatively with the magnitude of pupil modulations in our sample of neurotypical adults; however, psychophysical measurements of the illusion did not correlate with autistic traits, or with the pupil modulations. This shows that pupillometry provides an accurate objective index of complex perceptual processes, particularly useful for quantifying interindividual differences, and potentially more informative than standard psychophysical measures. |
|---|---|
| ISSN: | 0162-3257 |
| DOI: | 10.1007/s10803-020-04718-7 |
