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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.
Authors: Tortelli, Chiara, Turi, Marco, Burr, David C., Binda, Paola
Source: Journal of Autism & Developmental Disorders. Aug2021, Vol. 51 Issue 8, p2908-2919. 12p. 1 Diagram, 2 Graphs.
Subjects: Retina, Pupil (Eye), Reflexes, Cognition, Autism, Visual perception, Light, Perceptual illusions, Space perception
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. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Autism & Developmental Disorders is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Pupillary Responses Obey Emmert's Law and Co-vary with Autistic Traits.
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  Data: <searchLink fieldCode="AR" term="%22Tortelli%2C+Chiara%22">Tortelli, Chiara</searchLink><br /><searchLink fieldCode="AR" term="%22Turi%2C+Marco%22">Turi, Marco</searchLink><br /><searchLink fieldCode="AR" term="%22Burr%2C+David+C%2E%22">Burr, David C.</searchLink><br /><searchLink fieldCode="AR" term="%22Binda%2C+Paola%22">Binda, Paola</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Autism+%26+Developmental+Disorders%22">Journal of Autism & Developmental Disorders</searchLink>. Aug2021, Vol. 51 Issue 8, p2908-2919. 12p. 1 Diagram, 2 Graphs.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Retina%22">Retina</searchLink><br /><searchLink fieldCode="DE" term="%22Pupil+%28Eye%29%22">Pupil (Eye)</searchLink><br /><searchLink fieldCode="DE" term="%22Reflexes%22">Reflexes</searchLink><br /><searchLink fieldCode="DE" term="%22Cognition%22">Cognition</searchLink><br /><searchLink fieldCode="DE" term="%22Autism%22">Autism</searchLink><br /><searchLink fieldCode="DE" term="%22Visual+perception%22">Visual perception</searchLink><br /><searchLink fieldCode="DE" term="%22Light%22">Light</searchLink><br /><searchLink fieldCode="DE" term="%22Perceptual+illusions%22">Perceptual illusions</searchLink><br /><searchLink fieldCode="DE" term="%22Space+perception%22">Space perception</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: 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. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Journal of Autism & Developmental Disorders is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1007/s10803-020-04718-7
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 12
        StartPage: 2908
    Subjects:
      – SubjectFull: Retina
        Type: general
      – SubjectFull: Pupil (Eye)
        Type: general
      – SubjectFull: Reflexes
        Type: general
      – SubjectFull: Cognition
        Type: general
      – SubjectFull: Autism
        Type: general
      – SubjectFull: Visual perception
        Type: general
      – SubjectFull: Light
        Type: general
      – SubjectFull: Perceptual illusions
        Type: general
      – SubjectFull: Space perception
        Type: general
    Titles:
      – TitleFull: Pupillary Responses Obey Emmert's Law and Co-vary with Autistic Traits.
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            NameFull: Tortelli, Chiara
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            NameFull: Turi, Marco
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            NameFull: Burr, David C.
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            NameFull: Binda, Paola
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            – D: 01
              M: 08
              Text: Aug2021
              Type: published
              Y: 2021
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