ArticleNature communications2021
The pupil responds spontaneously to perceived numerosity.
Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
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Who cites it
30 citing papers in PubMed.
- Windows to the goal: Pupillary working memory signatures prospectively adapt to task demands.iScience · 2026Article
- Brain Representation of Numerosity across the Senses and Presentation Formats.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025Article
- Pupillary ultrasonography vs Horner's syndrome to evaluate efficacy of stellate ganglion block in patients.IBRO neuroscience reports · 2025Article
- Segmentation as a bottleneck in numerical cognition.Scientific reports · 2025Article
- Dimensionality reduction techniques in pupillometry research: A primer for behavioral scientists.Behavior research methods · 2025Article
- Sleuthing subjectivity: a review of covert measures of consciousness.Nature reviews. Neuroscience · 2025Review
- Eyes on hold: motion task difficulty jointly delays microsaccade and pupil responses.Scientific reports · 2025Article
- Pupillometric signature of implicit learning of statistical regularities.Current biology : CB · 2025Article
- Pupil responds spontaneously to visuospatial regularity.Journal of vision · 2025Article
- Feature-selective adaptation of numerosity perception.Proceedings. Biological sciences · 2025Article
- "Groupitizing": A Visuo-Spatial and Arithmetic Phenomenon.Open mind : discoveries in cognitive science · 2025Article
- What pupil size can and cannot tell about math anxiety.Psychological research · 2024Article
- Article
- The radial-tangential anisotropy of numerosity perception.Journal of vision · 2024Article
- Adaptation to numerosity affects the pupillary light response.Scientific reports · 2024Article
- From pre-processing to advanced dynamic modeling of pupil data.Behavior research methods · 2024Article
- Profiles of mathematical deficits in children with dyslexia.NPJ science of learning · 2024Article
- Altered oculomotor flexibility is linked to high autistic traits.Scientific reports · 2023Article
- The symmetry-induced numerosity illusion depends on visual attention.Scientific reports · 2023Article
- A matter of availability: sharper tuning for memorized than for perceived stimulus features.Cerebral cortex (New York, N.Y. : 1991) · 2023Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Although luminance is the main determinant of pupil size, the amplitude of the pupillary light response is also modulated by stimulus appearance and attention. Here we ask whether perceived numerosity modulates the pupillary light response. Participants passively observed arrays of black or white dots of matched physical luminance but different physical or illusory numerosity. In half the patterns, pairs of dots were connected by lines to create dumbbell-like shapes, inducing an illusory underestimation of perceived numerosity; in the other half, connectors were either displaced or removed. Constriction to white arrays and dilation to black were stronger for patterns with higher perceived numerosity, either physical or illusory, with the strength of the pupillary light response scaling with the perceived numerosity of the arrays. Our results show that even without an explicit task, numerosity modulates a simple automatic reflex, suggesting that numerosity is a spontaneously encoded visual feature.
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