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Dopaminergic and noradrenergic modulation of stress-induced alterations in brain activation associated with goal-directed behaviour
BACKGROUND: Acute stress is thought to reduce goal-directed behaviour, an effect purportedly associated with stress-induced release of catecholamines. In contrast, experimentally increased systemic catecholamine levels have been shown to increase goal-directed behaviour. Whether experimentally incre...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
SAGE Publications
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8652367/ https://www.ncbi.nlm.nih.gov/pubmed/34519561 http://dx.doi.org/10.1177/02698811211044679 |
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author | van Ruitenbeek, Peter Quaedflieg, Conny WEM Hernaus, Dennis Hartogsveld, Bart Smeets, Tom |
author_facet | van Ruitenbeek, Peter Quaedflieg, Conny WEM Hernaus, Dennis Hartogsveld, Bart Smeets, Tom |
author_sort | van Ruitenbeek, Peter |
collection | PubMed |
description | BACKGROUND: Acute stress is thought to reduce goal-directed behaviour, an effect purportedly associated with stress-induced release of catecholamines. In contrast, experimentally increased systemic catecholamine levels have been shown to increase goal-directed behaviour. Whether experimentally increased catecholamine function can modulate stress-induced reductions in goal-directed behaviour and its neural substrates, is currently unknown. AIM: To assess whether and how experimentally induced increases in dopamine and noradrenaline contribute to the acute stress effects on goal-directed behaviour and associated brain activation. METHODS: One hundred participants underwent a stress induction protocol (Maastricht acute stress test; MAST) or a control procedure and received methylphenidate (MPH) (40 mg, oral) or placebo according to a 2 × 2 between-subjects design. In a well-established instrumental learning paradigm, participants learnt stimulus–response–outcome associations, after which rewards were selectively devalued. Participants’ brain activation and associated goal-directed behaviour were assessed in a magnetic resonance imaging scanner at peak cortisol/MPH concentrations. RESULTS: The MAST and MPH increased physiological measures of stress (salivary cortisol and blood pressure), but only MAST increased subjective measures of stress. MPH modulated stress effects on activation of brain areas associated with goal-directed behaviour, including insula, putamen, amygdala, medial prefrontal cortex, frontal pole and orbitofrontal cortex. However, MPH did not modulate the tendency of stress to induce a reduction in goal-directed behaviour. CONCLUSION: Our neuroimaging data suggest that MPH-induced increases in dopamine and noradrenaline reverse stress-induced changes in key brain regions associated with goal-directed behaviour, while behavioural effects were absent. These effects may be relevant for preventing stress-induced maladaptive behaviour like in addiction or binge eating disorder. |
format | Online Article Text |
id | pubmed-8652367 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | SAGE Publications |
record_format | MEDLINE/PubMed |
spelling | pubmed-86523672021-12-09 Dopaminergic and noradrenergic modulation of stress-induced alterations in brain activation associated with goal-directed behaviour van Ruitenbeek, Peter Quaedflieg, Conny WEM Hernaus, Dennis Hartogsveld, Bart Smeets, Tom J Psychopharmacol Original Papers BACKGROUND: Acute stress is thought to reduce goal-directed behaviour, an effect purportedly associated with stress-induced release of catecholamines. In contrast, experimentally increased systemic catecholamine levels have been shown to increase goal-directed behaviour. Whether experimentally increased catecholamine function can modulate stress-induced reductions in goal-directed behaviour and its neural substrates, is currently unknown. AIM: To assess whether and how experimentally induced increases in dopamine and noradrenaline contribute to the acute stress effects on goal-directed behaviour and associated brain activation. METHODS: One hundred participants underwent a stress induction protocol (Maastricht acute stress test; MAST) or a control procedure and received methylphenidate (MPH) (40 mg, oral) or placebo according to a 2 × 2 between-subjects design. In a well-established instrumental learning paradigm, participants learnt stimulus–response–outcome associations, after which rewards were selectively devalued. Participants’ brain activation and associated goal-directed behaviour were assessed in a magnetic resonance imaging scanner at peak cortisol/MPH concentrations. RESULTS: The MAST and MPH increased physiological measures of stress (salivary cortisol and blood pressure), but only MAST increased subjective measures of stress. MPH modulated stress effects on activation of brain areas associated with goal-directed behaviour, including insula, putamen, amygdala, medial prefrontal cortex, frontal pole and orbitofrontal cortex. However, MPH did not modulate the tendency of stress to induce a reduction in goal-directed behaviour. CONCLUSION: Our neuroimaging data suggest that MPH-induced increases in dopamine and noradrenaline reverse stress-induced changes in key brain regions associated with goal-directed behaviour, while behavioural effects were absent. These effects may be relevant for preventing stress-induced maladaptive behaviour like in addiction or binge eating disorder. SAGE Publications 2021-09-14 2021-12 /pmc/articles/PMC8652367/ /pubmed/34519561 http://dx.doi.org/10.1177/02698811211044679 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage). |
spellingShingle | Original Papers van Ruitenbeek, Peter Quaedflieg, Conny WEM Hernaus, Dennis Hartogsveld, Bart Smeets, Tom Dopaminergic and noradrenergic modulation of stress-induced alterations in brain activation associated with goal-directed behaviour |
title | Dopaminergic and noradrenergic modulation of stress-induced alterations in brain activation associated with goal-directed behaviour |
title_full | Dopaminergic and noradrenergic modulation of stress-induced alterations in brain activation associated with goal-directed behaviour |
title_fullStr | Dopaminergic and noradrenergic modulation of stress-induced alterations in brain activation associated with goal-directed behaviour |
title_full_unstemmed | Dopaminergic and noradrenergic modulation of stress-induced alterations in brain activation associated with goal-directed behaviour |
title_short | Dopaminergic and noradrenergic modulation of stress-induced alterations in brain activation associated with goal-directed behaviour |
title_sort | dopaminergic and noradrenergic modulation of stress-induced alterations in brain activation associated with goal-directed behaviour |
topic | Original Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8652367/ https://www.ncbi.nlm.nih.gov/pubmed/34519561 http://dx.doi.org/10.1177/02698811211044679 |
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