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Lipsmacking Imitation Skill in Newborn Macaques Is Predictive of Social Partner Discrimination

Newborn rhesus macaques imitate facial gestures even after a delay, revealing the flexible nature of their early communicative exchanges. In the present study we examined whether newborn macaques are also sensitive to the identities of the social partners with whom they are interacting. We measured...

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Autores principales: Simpson, Elizabeth A., Paukner, Annika, Sclafani, Valentina, Suomi, Stephen J., Ferrari, Pier F.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3867398/
https://www.ncbi.nlm.nih.gov/pubmed/24367569
http://dx.doi.org/10.1371/journal.pone.0082921
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author Simpson, Elizabeth A.
Paukner, Annika
Sclafani, Valentina
Suomi, Stephen J.
Ferrari, Pier F.
author_facet Simpson, Elizabeth A.
Paukner, Annika
Sclafani, Valentina
Suomi, Stephen J.
Ferrari, Pier F.
author_sort Simpson, Elizabeth A.
collection PubMed
description Newborn rhesus macaques imitate facial gestures even after a delay, revealing the flexible nature of their early communicative exchanges. In the present study we examined whether newborn macaques are also sensitive to the identities of the social partners with whom they are interacting. We measured infant monkeys' (n = 90) lipsmacking and tongue protrusion gestures in a face-to-face interaction task with a human experimenter in the first week of life. After a one-minute delay, the same person who previously presented gestures or a different person returned and presented a still face to infants. We had two primary predictions: (1) infants would demonstrate higher rates of overall gesturing, and especially lipsmacking—an affiliative gesture—to a familiar person, compared to a novel person, and (2) infants' imitative skills would positively correlate with gestures to familiar, but not unfamiliar, social partners, as both abilities may reflect a strong general social interest. We found that overall infants did not produce more gestures or more lipsmacking when approached by a familiar person compared to a novel person; however, we did find individual differences in infants' social responsiveness: lipsmacking imitation was positively correlated with lipsmacking during the return period when the person was the same (p = .025), but not when the person was novel (p = .44). These findings are consistent with the notion that imitative skill is reflective of infants' more general interest in social interactions.
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spelling pubmed-38673982013-12-23 Lipsmacking Imitation Skill in Newborn Macaques Is Predictive of Social Partner Discrimination Simpson, Elizabeth A. Paukner, Annika Sclafani, Valentina Suomi, Stephen J. Ferrari, Pier F. PLoS One Research Article Newborn rhesus macaques imitate facial gestures even after a delay, revealing the flexible nature of their early communicative exchanges. In the present study we examined whether newborn macaques are also sensitive to the identities of the social partners with whom they are interacting. We measured infant monkeys' (n = 90) lipsmacking and tongue protrusion gestures in a face-to-face interaction task with a human experimenter in the first week of life. After a one-minute delay, the same person who previously presented gestures or a different person returned and presented a still face to infants. We had two primary predictions: (1) infants would demonstrate higher rates of overall gesturing, and especially lipsmacking—an affiliative gesture—to a familiar person, compared to a novel person, and (2) infants' imitative skills would positively correlate with gestures to familiar, but not unfamiliar, social partners, as both abilities may reflect a strong general social interest. We found that overall infants did not produce more gestures or more lipsmacking when approached by a familiar person compared to a novel person; however, we did find individual differences in infants' social responsiveness: lipsmacking imitation was positively correlated with lipsmacking during the return period when the person was the same (p = .025), but not when the person was novel (p = .44). These findings are consistent with the notion that imitative skill is reflective of infants' more general interest in social interactions. Public Library of Science 2013-12-18 /pmc/articles/PMC3867398/ /pubmed/24367569 http://dx.doi.org/10.1371/journal.pone.0082921 Text en https://creativecommons.org/publicdomain/zero/1.0/ This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration, which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.
spellingShingle Research Article
Simpson, Elizabeth A.
Paukner, Annika
Sclafani, Valentina
Suomi, Stephen J.
Ferrari, Pier F.
Lipsmacking Imitation Skill in Newborn Macaques Is Predictive of Social Partner Discrimination
title Lipsmacking Imitation Skill in Newborn Macaques Is Predictive of Social Partner Discrimination
title_full Lipsmacking Imitation Skill in Newborn Macaques Is Predictive of Social Partner Discrimination
title_fullStr Lipsmacking Imitation Skill in Newborn Macaques Is Predictive of Social Partner Discrimination
title_full_unstemmed Lipsmacking Imitation Skill in Newborn Macaques Is Predictive of Social Partner Discrimination
title_short Lipsmacking Imitation Skill in Newborn Macaques Is Predictive of Social Partner Discrimination
title_sort lipsmacking imitation skill in newborn macaques is predictive of social partner discrimination
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3867398/
https://www.ncbi.nlm.nih.gov/pubmed/24367569
http://dx.doi.org/10.1371/journal.pone.0082921
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