Pregnancy reduces the perception of anxiety

Abstract In humans, stress can be contagiously transmitted via chemosignals on a subconscious level. This study investigates how pregnancy affects neural responses to anxiety chemosignals. Using cotton pads, 28 men donated axillary sweat immediately before an academic examination (anxiety sweat) and...

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Autores principales:	Katrin T. Lübke, Anne Busch, Matthias Hoenen, Benoist Schaal, Bettina M. Pause
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6eff1cb1a2344850bcd2f68b13c6e0fc
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spelling	oai:doaj.org-article:6eff1cb1a2344850bcd2f68b13c6e0fc2021-12-02T11:40:59ZPregnancy reduces the perception of anxiety10.1038/s41598-017-07985-02045-2322https://doaj.org/article/6eff1cb1a2344850bcd2f68b13c6e0fc2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07985-0https://doaj.org/toc/2045-2322Abstract In humans, stress can be contagiously transmitted via chemosignals on a subconscious level. This study investigates how pregnancy affects neural responses to anxiety chemosignals. Using cotton pads, 28 men donated axillary sweat immediately before an academic examination (anxiety sweat) and during ergometer training (control). Via a constant-flow olfactometer, samples were presented (oddball paradigm) to 12 non-pregnant (NP) women, 14 women in their first (T1), and 18 in their third (T3) trimester of pregnancy. Chemosensory event-related potentials and current source densities (CSD) were analysed (60 electrode setup). Compared to NP-women, pregnant women display diminished evaluative processing of the sweat samples (targets; P3-1/ P3-2 amplitudes) and delayed evaluative processing of the anxiety sweat (targets; P3-2 latency). T3-women show attenuated early processing (targets; N1 amplitude) compared to NP-women, and reduced evaluative processing compared to T1-women (standards; P3-2 amplitude). CSDs (P3-1/ P3-2 latency ranges) reveal that T1- and T3-women show an atypical activation distribution to anxiety sweat. Most participants were unable to detect the sweat samples (anxiety sweat: 79.5%, sport sweat 88.6%). The results demonstrate that the processing of anxiety chemosignals progressively vanishes during pregnancy. This effect is likely to occur without any cognitive control.Katrin T. LübkeAnne BuschMatthias HoenenBenoist SchaalBettina M. PauseNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Katrin T. Lübke Anne Busch Matthias Hoenen Benoist Schaal Bettina M. Pause Pregnancy reduces the perception of anxiety
description	Abstract In humans, stress can be contagiously transmitted via chemosignals on a subconscious level. This study investigates how pregnancy affects neural responses to anxiety chemosignals. Using cotton pads, 28 men donated axillary sweat immediately before an academic examination (anxiety sweat) and during ergometer training (control). Via a constant-flow olfactometer, samples were presented (oddball paradigm) to 12 non-pregnant (NP) women, 14 women in their first (T1), and 18 in their third (T3) trimester of pregnancy. Chemosensory event-related potentials and current source densities (CSD) were analysed (60 electrode setup). Compared to NP-women, pregnant women display diminished evaluative processing of the sweat samples (targets; P3-1/ P3-2 amplitudes) and delayed evaluative processing of the anxiety sweat (targets; P3-2 latency). T3-women show attenuated early processing (targets; N1 amplitude) compared to NP-women, and reduced evaluative processing compared to T1-women (standards; P3-2 amplitude). CSDs (P3-1/ P3-2 latency ranges) reveal that T1- and T3-women show an atypical activation distribution to anxiety sweat. Most participants were unable to detect the sweat samples (anxiety sweat: 79.5%, sport sweat 88.6%). The results demonstrate that the processing of anxiety chemosignals progressively vanishes during pregnancy. This effect is likely to occur without any cognitive control.
format	article
author	Katrin T. Lübke Anne Busch Matthias Hoenen Benoist Schaal Bettina M. Pause
author_facet	Katrin T. Lübke Anne Busch Matthias Hoenen Benoist Schaal Bettina M. Pause
author_sort	Katrin T. Lübke
title	Pregnancy reduces the perception of anxiety
title_short	Pregnancy reduces the perception of anxiety
title_full	Pregnancy reduces the perception of anxiety
title_fullStr	Pregnancy reduces the perception of anxiety
title_full_unstemmed	Pregnancy reduces the perception of anxiety
title_sort	pregnancy reduces the perception of anxiety
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/6eff1cb1a2344850bcd2f68b13c6e0fc
work_keys_str_mv	AT katrintlubke pregnancyreducestheperceptionofanxiety AT annebusch pregnancyreducestheperceptionofanxiety AT matthiashoenen pregnancyreducestheperceptionofanxiety AT benoistschaal pregnancyreducestheperceptionofanxiety AT bettinampause pregnancyreducestheperceptionofanxiety
_version_	1718395466684563456

Pregnancy reduces the perception of anxiety

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