Universal and uniquely human factors in spontaneous number perception

A capacity for nonverbal numerical estimation is widespread among humans and animals. However, it is currently unclear whether numerical percepts are spontaneously extracted from the environment and whether nonverbal perception is influenced by human exposure to formal mathematics. We tested US adul...

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Main Authors: Ferrigno, Stephen, Jara-Ettinger, Julian, Piantadosi, Steven T., Cantlon, Jessica F.
Other Authors: Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences
Format: Article
Language:en_US
Published: Nature Publishing Group 2017
Online Access:http://hdl.handle.net/1721.1/110112
https://orcid.org/0000-0002-6167-1647
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author Ferrigno, Stephen
Jara-Ettinger, Julian
Piantadosi, Steven T.
Cantlon, Jessica F.
author2 Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences
author_facet Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences
Ferrigno, Stephen
Jara-Ettinger, Julian
Piantadosi, Steven T.
Cantlon, Jessica F.
author_sort Ferrigno, Stephen
collection MIT
description A capacity for nonverbal numerical estimation is widespread among humans and animals. However, it is currently unclear whether numerical percepts are spontaneously extracted from the environment and whether nonverbal perception is influenced by human exposure to formal mathematics. We tested US adults and children, non-human primates, and numerate and innumerate Tsimane’ adults on a quantity task in which they could choose to categorize sets of dots on the basis of number alone, surface area alone or a combination of the two. Despite differences in age, species and education, subjects are universally biased to base their judgments on number as opposed to the alternatives. Numerical biases are uniquely enhanced in humans compared to non-human primates, and correlated with degree of mathematics experience in both the US and Tsimane’ groups. We conclude that humans universally and spontaneously extract numerical information, and that human nonverbal numerical perception is enhanced by symbolic numeracy.
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spelling mit-1721.1/1101122022-10-02T06:23:15Z Universal and uniquely human factors in spontaneous number perception Ferrigno, Stephen Jara-Ettinger, Julian Piantadosi, Steven T. Cantlon, Jessica F. Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences Jara-Ettinger, Julian A capacity for nonverbal numerical estimation is widespread among humans and animals. However, it is currently unclear whether numerical percepts are spontaneously extracted from the environment and whether nonverbal perception is influenced by human exposure to formal mathematics. We tested US adults and children, non-human primates, and numerate and innumerate Tsimane’ adults on a quantity task in which they could choose to categorize sets of dots on the basis of number alone, surface area alone or a combination of the two. Despite differences in age, species and education, subjects are universally biased to base their judgments on number as opposed to the alternatives. Numerical biases are uniquely enhanced in humans compared to non-human primates, and correlated with degree of mathematics experience in both the US and Tsimane’ groups. We conclude that humans universally and spontaneously extract numerical information, and that human nonverbal numerical perception is enhanced by symbolic numeracy. National Science Foundation (U.S.) (DRL1459625) United States. National Institutes of Health (R01 HD064636) 2017-06-21T14:36:34Z 2017-06-21T14:36:34Z 2017-01 2015-11 Article http://purl.org/eprint/type/JournalArticle 2041-1723 http://hdl.handle.net/1721.1/110112 Ferrigno, Stephen; Jara-Ettinger, Julian; Piantadosi, Steven T. and Cantlon, Jessica F. “Universal and Uniquely Human Factors in Spontaneous Number Perception.” Nature Communications 8 (January 2017): 13968 © 2017 The Authors https://orcid.org/0000-0002-6167-1647 en_US http://dx.doi.org/10.1038/ncomms13968 Nature Communications Creative Commons Attribution 4.0 International License http://creativecommons.org/licenses/by/4.0/ application/pdf Nature Publishing Group Nature
spellingShingle Ferrigno, Stephen
Jara-Ettinger, Julian
Piantadosi, Steven T.
Cantlon, Jessica F.
Universal and uniquely human factors in spontaneous number perception
title Universal and uniquely human factors in spontaneous number perception
title_full Universal and uniquely human factors in spontaneous number perception
title_fullStr Universal and uniquely human factors in spontaneous number perception
title_full_unstemmed Universal and uniquely human factors in spontaneous number perception
title_short Universal and uniquely human factors in spontaneous number perception
title_sort universal and uniquely human factors in spontaneous number perception
url http://hdl.handle.net/1721.1/110112
https://orcid.org/0000-0002-6167-1647
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