Statistical learning in domestic chicks is modulated by strain and sex
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- dc.contributor.author Santolin, Chiara
- dc.contributor.author Rosa Salva, Orsola
- dc.contributor.author Lemaire, Bastien S.
- dc.contributor.author Regolin, Lucia
- dc.contributor.author Vallortigara, Giorgio
- dc.date.accessioned 2021-01-15T09:06:57Z
- dc.date.available 2021-01-15T09:06:57Z
- dc.date.issued 2020
- dc.description.abstract Statistical learning is a key mechanism for detecting regularities from a variety of sensory inputs. Precocial newborn domestic chicks provide an excellent model for (1) exploring unsupervised forms of statistical learning in a comparative perspective, and (2) elucidating the ecological function of statistical learning using imprinting procedures. Here we investigated the role of the sex of the chicks in modulating the direction of preference (for familiarity or novelty) in a visual statistical learning task already employed with chicks and human infants. Using both automated tracking and direct human coding, we confirmed chicks’ capacity to recognize the presence of a statistically defined structure underlying a continuous stream of shapes. Using a different chicken strain than previous studies, we were also able to highlight sex differences in chicks’ propensity to approach the familiar or novel sequence. This could also explain a previous failure to reveal statistical learning in chicks which sex was however not determined. Our study confirms chicks’ ability to track visual statistics. The pivotal role of sex in determining familiarity or novelty preferences in this species and the interaction with the animals’ strain highlight the importance to contextualize comparative research within the ecology of each species.en
- dc.description.sponsorship This work was supported by funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 833504 SPANUMBRA) to GV. The project also received funding from a PRIN 2017 ERC-SH4-A (2017PSRHPZ) to LR and GV. We are grateful to Mirko Tommasi and Momoko Yamabe for their help with testing, and to Camille Frey for drawing the apparatus.
- dc.format.mimetype application/pdf
- dc.identifier.citation Santolin C, Rosa-Salva O, Lemaire BS, Regolin L, Vallortigara G. Statistical learning in domestic chicks is modulated by strain and sex. Sci Rep. 2020 Sep 15;10:15140. DOI: 10.1038/s41598-020-72090-8
- dc.identifier.doi http://dx.doi.org/10.1038/s41598-020-72090-8
- dc.identifier.issn 2045-2322
- dc.identifier.uri http://hdl.handle.net/10230/46187
- dc.language.iso eng
- dc.publisher Nature Research
- dc.relation.ispartof Scientific Reports. 2020 Sep 15;10:15140
- dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/833504
- dc.rights This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/
- dc.rights.accessRights info:eu-repo/semantics/openAccess
- dc.rights.uri http://creativecommons.org/licenses/by/4.0/
- dc.subject.keyword Neuroscienceen
- dc.subject.keyword Psychologyen
- dc.title Statistical learning in domestic chicks is modulated by strain and sexen
- dc.type info:eu-repo/semantics/article
- dc.type.version info:eu-repo/semantics/publishedVersion