The pupil responds spontaneously to perceived numerosity

Elisa Castaldi; Antonella Pomè; Guido Marco Cicchini; David Burr; Paola Binda

doi:10.1038/s41467-021-26261-4

Nature Communications (Oct 2021)

The pupil responds spontaneously to perceived numerosity

Elisa Castaldi,
Antonella Pomè,
Guido Marco Cicchini,
David Burr,
Paola Binda

Affiliations

Elisa Castaldi: Department of Translational Research and New technologies in Medicine and Surgery, University of Pisa
Antonella Pomè: Department of Neuroscience, Psychology, Pharmacology and Child Health, University of Florence
Guido Marco Cicchini: Institute of Neuroscience, National Research Council
David Burr: Department of Neuroscience, Psychology, Pharmacology and Child Health, University of Florence
Paola Binda: Department of Translational Research and New technologies in Medicine and Surgery, University of Pisa

DOI: https://doi.org/10.1038/s41467-021-26261-4
Journal volume & issue: Vol. 12, no. 1
pp. 1 – 8

Abstract

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Rapid and spontaneous estimation of number is observed in many animals. Here the authors show that perceived number of items modulates the pupillary light response in humans, confirming its spontaneous nature, and introducing pupillometry as a tool to study numerical cognition.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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