A mechanism for punctuating equilibria during mammalian vocal development

Evolution and development are typically characterized as the outcomes of gradual changes, but sometimes such changes are abrupt: States of equilibrium can be punctuated by sudden change. Here, we studied the early vocal development of three different mammals: common marmoset monkeys, Egyptian fruit...

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Principais autores:	Varella, Thiago T., Zanghi, Yisi S., Takahashi, Daniel Yasumasa, Ghazanfar, Asif A.
Formato:	article
Idioma:	English
Publicado em:	Public Library of Science (PLoS)
Assuntos:	Behavior - Animal Punctuated equilibrium Vocal development - Mammalian
Endereço do item:	https://repositorio.ufrn.br/handle/123456789/48278 https://doi.org/10.1371/journal.pcbi.1010173
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spelling	ri-123456789-482782022-06-24T19:27:47Z A mechanism for punctuating equilibria during mammalian vocal development Varella, Thiago T. Zanghi, Yisi S. Takahashi, Daniel Yasumasa Ghazanfar, Asif A. Behavior - Animal Punctuated equilibrium Vocal development - Mammalian Evolution and development are typically characterized as the outcomes of gradual changes, but sometimes such changes are abrupt: States of equilibrium can be punctuated by sudden change. Here, we studied the early vocal development of three different mammals: common marmoset monkeys, Egyptian fruit bats, and humans. Consistent with the notion of punctuated equilibria, we found that all three species undergo at least one sudden transition in the acoustics of their developing vocalizations. To understand the mechanism, we modeled different developmental landscapes. We found that the transition was best described as a shift in the balance of two vocalization landscapes. We show that the natural dynamics of these two landscapes are consistent with the dynamics of energy expenditure and information transmission. By using them as constraints for each species, we predicted the differences in transition timing from immature to mature vocalizations. Using marmoset monkeys, we were able to manipulate both infant energy expenditure (vocalizing in an environment with lighter air) and information transmission (closed-loop contingent parental vocal playback). These experiments support the importance of energy and information in leading to punctuated equilibrium states of vocal development 2022-06-24T19:27:47Z 2022-06-24T19:27:47Z 2022-06-13 article VARELLA, Tiago; ZHANG, Yisi; TAKAHASHI, Daniel Yasumasa; GHAZANFAR, Asif. A mechanism for punctuating equilibria during mammalian vocal development. PLoS Comput Biol., [S. l.], v. 18, n. 6, p. e1010173, jun. 2022. Disponível em: https://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1010173. Acesso em: 24 jun. 2022. https://repositorio.ufrn.br/handle/123456789/48278 https://doi.org/10.1371/journal.pcbi.1010173 en Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ application/pdf Public Library of Science (PLoS)
institution	Repositório Institucional
collection	RI - UFRN
language	English
topic	Behavior - Animal Punctuated equilibrium Vocal development - Mammalian
spellingShingle	Behavior - Animal Punctuated equilibrium Vocal development - Mammalian Varella, Thiago T. Zanghi, Yisi S. Takahashi, Daniel Yasumasa Ghazanfar, Asif A. A mechanism for punctuating equilibria during mammalian vocal development
description	Evolution and development are typically characterized as the outcomes of gradual changes, but sometimes such changes are abrupt: States of equilibrium can be punctuated by sudden change. Here, we studied the early vocal development of three different mammals: common marmoset monkeys, Egyptian fruit bats, and humans. Consistent with the notion of punctuated equilibria, we found that all three species undergo at least one sudden transition in the acoustics of their developing vocalizations. To understand the mechanism, we modeled different developmental landscapes. We found that the transition was best described as a shift in the balance of two vocalization landscapes. We show that the natural dynamics of these two landscapes are consistent with the dynamics of energy expenditure and information transmission. By using them as constraints for each species, we predicted the differences in transition timing from immature to mature vocalizations. Using marmoset monkeys, we were able to manipulate both infant energy expenditure (vocalizing in an environment with lighter air) and information transmission (closed-loop contingent parental vocal playback). These experiments support the importance of energy and information in leading to punctuated equilibrium states of vocal development
format	article
author	Varella, Thiago T. Zanghi, Yisi S. Takahashi, Daniel Yasumasa Ghazanfar, Asif A.
author_facet	Varella, Thiago T. Zanghi, Yisi S. Takahashi, Daniel Yasumasa Ghazanfar, Asif A.
author_sort	Varella, Thiago T.
title	A mechanism for punctuating equilibria during mammalian vocal development
title_short	A mechanism for punctuating equilibria during mammalian vocal development
title_full	A mechanism for punctuating equilibria during mammalian vocal development
title_fullStr	A mechanism for punctuating equilibria during mammalian vocal development
title_full_unstemmed	A mechanism for punctuating equilibria during mammalian vocal development
title_sort	mechanism for punctuating equilibria during mammalian vocal development
publisher	Public Library of Science (PLoS)
publishDate	2022
url	https://repositorio.ufrn.br/handle/123456789/48278 https://doi.org/10.1371/journal.pcbi.1010173
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A mechanism for punctuating equilibria during mammalian vocal development

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