Staff View: Time-dependent changes in cortisol and tympanic temperature lateralization during food deprivation stress in marmoset monkeys

Time-dependent changes in cortisol and tympanic temperature lateralization during food deprivation stress in marmoset monkeys

Temporal information about food availability can be easily entrained, as in the case of fixed feeding routines of captive animals. A sudden unintentional or deliberate delay (e.g., food deprivation—FD) leads to frustration and psychological stress due to the loss of temporal predictability. How m...

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Main Authors:	Pereira, Lucas Cardoso, Maior, Rafael Plakoudi Souto, Barros, Marília
Format:	Artigo
Language:	Inglês
Published:	Frontiers 2020
Subjects:	Alimentação dos animais Stress (Psicologia) Cortisol Tímpano - temperatura Assimetria hemisférica Sagui
Online Access:	https://repositorio.unb.br/handle/10482/39624 https://doi.org/10.3389/fnbeh.2020.00123
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spelling	ir-10482-396242020-11-11T17:03:58Z Time-dependent changes in cortisol and tympanic temperature lateralization during food deprivation stress in marmoset monkeys Pereira, Lucas Cardoso Maior, Rafael Plakoudi Souto Barros, Marília Alimentação dos animais Stress (Psicologia) Cortisol Tímpano - temperatura Assimetria hemisférica Sagui Temporal information about food availability can be easily entrained, as in the case of fixed feeding routines of captive animals. A sudden unintentional or deliberate delay (e.g., food deprivation—FD) leads to frustration and psychological stress due to the loss of temporal predictability. How marmosets—an increasingly used small primate—process and respond to FD stress has not been previously assessed. Here we delayed the routine feeding of adult captive marmosets for 3 or 6 h. Blood cortisol concentration was used as a hormonal measure of the stress response. Changes in the left/right baseline tympanic membrane temperature (TMT) were used as an indirect ipsilateral indicator of hemisphere activity. Marmosets that were deprived for 3 h had higher cortisol levels than non-deprived controls. Cortisol concentration in the marmosets deprived for 6 h did not differ from controls possibly due to adaptative mechanisms against the detrimental effects of prolonged high cortisol levels. Interestingly, FD stress may have been processed more symmetrically at first, as indicated by the bilateral increase in TMT at the 3 h interval. As the event progressed (i.e., 6 h), a clear rightward TMT bias suggests that hemisphere activity had become asymmetrical. Therefore, the sudden loss of temporal predictability of an entrained routine feeding schedule induces time-dependent changes in the cortisol stress response and shifts in the TMT (and potentially hemisphere activity) lateralization bias of adult captive marmosets. 2020-11-11T17:03:58Z 2020-11-11T17:03:58Z 2020-07-16 Artigo PEREIRA, Lucas C.; MAIOR, Rafael S.; BARROS, Marília. Time-dependent changes in cortisol and tympanic temperature lateralization during food deprivation stress in marmoset monkeys. Frontiers in Behavioral Neuroscience, v. 14, art. 123, 2020. DOI: https://doi.org/10.3389/fnbeh.2020.00123. Disponível em: https://www.frontiersin.org/articles/10.3389/fnbeh.2020.00123/full. Acesso em: 11 nov. 2020. https://repositorio.unb.br/handle/10482/39624 https://doi.org/10.3389/fnbeh.2020.00123 Inglês Acesso Aberto Copyright © 2020 Pereira, Maior and Barros. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. application/pdf Frontiers
institution	REPOSITORIO UNB
collection	REPOSITORIO UNB
language	Inglês
topic	Alimentação dos animais Stress (Psicologia) Cortisol Tímpano - temperatura Assimetria hemisférica Sagui
spellingShingle	Alimentação dos animais Stress (Psicologia) Cortisol Tímpano - temperatura Assimetria hemisférica Sagui Pereira, Lucas Cardoso Maior, Rafael Plakoudi Souto Barros, Marília Time-dependent changes in cortisol and tympanic temperature lateralization during food deprivation stress in marmoset monkeys
description	Temporal information about food availability can be easily entrained, as in the case of fixed feeding routines of captive animals. A sudden unintentional or deliberate delay (e.g., food deprivation—FD) leads to frustration and psychological stress due to the loss of temporal predictability. How marmosets—an increasingly used small primate—process and respond to FD stress has not been previously assessed. Here we delayed the routine feeding of adult captive marmosets for 3 or 6 h. Blood cortisol concentration was used as a hormonal measure of the stress response. Changes in the left/right baseline tympanic membrane temperature (TMT) were used as an indirect ipsilateral indicator of hemisphere activity. Marmosets that were deprived for 3 h had higher cortisol levels than non-deprived controls. Cortisol concentration in the marmosets deprived for 6 h did not differ from controls possibly due to adaptative mechanisms against the detrimental effects of prolonged high cortisol levels. Interestingly, FD stress may have been processed more symmetrically at first, as indicated by the bilateral increase in TMT at the 3 h interval. As the event progressed (i.e., 6 h), a clear rightward TMT bias suggests that hemisphere activity had become asymmetrical. Therefore, the sudden loss of temporal predictability of an entrained routine feeding schedule induces time-dependent changes in the cortisol stress response and shifts in the TMT (and potentially hemisphere activity) lateralization bias of adult captive marmosets.
format	Artigo
author	Pereira, Lucas Cardoso Maior, Rafael Plakoudi Souto Barros, Marília
author_sort	Pereira, Lucas Cardoso
title	Time-dependent changes in cortisol and tympanic temperature lateralization during food deprivation stress in marmoset monkeys
title_short	Time-dependent changes in cortisol and tympanic temperature lateralization during food deprivation stress in marmoset monkeys
title_full	Time-dependent changes in cortisol and tympanic temperature lateralization during food deprivation stress in marmoset monkeys
title_fullStr	Time-dependent changes in cortisol and tympanic temperature lateralization during food deprivation stress in marmoset monkeys
title_full_unstemmed	Time-dependent changes in cortisol and tympanic temperature lateralization during food deprivation stress in marmoset monkeys
title_sort	time-dependent changes in cortisol and tympanic temperature lateralization during food deprivation stress in marmoset monkeys
publisher	Frontiers
publishDate	2020
url	https://repositorio.unb.br/handle/10482/39624 https://doi.org/10.3389/fnbeh.2020.00123
_version_	1683626963398295552
score	13.657419

Time-dependent changes in cortisol and tympanic temperature lateralization during food deprivation stress in marmoset monkeys

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