Trait anxiety predicts amygdalar responses during direct processing of threat-related pictures

Abstract Previous studies on the associations between trait anxiety and amygdalar responses to threat stimuli have resulted in mixed findings, possibly due to sample characteristics, specific tasks, and analytical methods. The present functional magnetic resonance imaging (fMRI) study aimed to inves...

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Autores principales:	Huiyan Lin, Wolfgang H. R. Miltner, Thomas Straube
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/baad3678b277492baa07430dc0569b44
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spelling	oai:doaj.org-article:baad3678b277492baa07430dc0569b442021-12-02T18:02:15ZTrait anxiety predicts amygdalar responses during direct processing of threat-related pictures10.1038/s41598-021-98023-72045-2322https://doaj.org/article/baad3678b277492baa07430dc0569b442021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98023-7https://doaj.org/toc/2045-2322Abstract Previous studies on the associations between trait anxiety and amygdalar responses to threat stimuli have resulted in mixed findings, possibly due to sample characteristics, specific tasks, and analytical methods. The present functional magnetic resonance imaging (fMRI) study aimed to investigate linear or non-linear associations between trait anxiety and amygdalar responses in a sample of participants with low, medium, and high trait anxiety scores. During scanning, participants were presented with threat-related or neutral pictures and had either to solve an emotional task or an emotional-unrelated distraction task. Results showed that only during the explicit task trait anxiety was associated with right amygdalar responses to threat-related pictures as compared to neutral pictures. The best model was a cubic model with increased amygdala responses for very low and medium trait anxiety values but decreased amygdala activation for very high trait anxiety values. The findings imply a non-linear relation between trait anxiety and amygdala activation depending on task conditions.Huiyan LinWolfgang H. R. MiltnerThomas StraubeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Huiyan Lin Wolfgang H. R. Miltner Thomas Straube Trait anxiety predicts amygdalar responses during direct processing of threat-related pictures
description	Abstract Previous studies on the associations between trait anxiety and amygdalar responses to threat stimuli have resulted in mixed findings, possibly due to sample characteristics, specific tasks, and analytical methods. The present functional magnetic resonance imaging (fMRI) study aimed to investigate linear or non-linear associations between trait anxiety and amygdalar responses in a sample of participants with low, medium, and high trait anxiety scores. During scanning, participants were presented with threat-related or neutral pictures and had either to solve an emotional task or an emotional-unrelated distraction task. Results showed that only during the explicit task trait anxiety was associated with right amygdalar responses to threat-related pictures as compared to neutral pictures. The best model was a cubic model with increased amygdala responses for very low and medium trait anxiety values but decreased amygdala activation for very high trait anxiety values. The findings imply a non-linear relation between trait anxiety and amygdala activation depending on task conditions.
format	article
author	Huiyan Lin Wolfgang H. R. Miltner Thomas Straube
author_facet	Huiyan Lin Wolfgang H. R. Miltner Thomas Straube
author_sort	Huiyan Lin
title	Trait anxiety predicts amygdalar responses during direct processing of threat-related pictures
title_short	Trait anxiety predicts amygdalar responses during direct processing of threat-related pictures
title_full	Trait anxiety predicts amygdalar responses during direct processing of threat-related pictures
title_fullStr	Trait anxiety predicts amygdalar responses during direct processing of threat-related pictures
title_full_unstemmed	Trait anxiety predicts amygdalar responses during direct processing of threat-related pictures
title_sort	trait anxiety predicts amygdalar responses during direct processing of threat-related pictures
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/baad3678b277492baa07430dc0569b44
work_keys_str_mv	AT huiyanlin traitanxietypredictsamygdalarresponsesduringdirectprocessingofthreatrelatedpictures AT wolfganghrmiltner traitanxietypredictsamygdalarresponsesduringdirectprocessingofthreatrelatedpictures AT thomasstraube traitanxietypredictsamygdalarresponsesduringdirectprocessingofthreatrelatedpictures
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Trait anxiety predicts amygdalar responses during direct processing of threat-related pictures

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