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  Boosting recovery rather than buffering reactivity: Higher stress-induced oxytocin secretion is associated with increased cortisol reactivity and faster vagal recovery after acute psychosocial stress

Engert, V., Koester, A. M., Riepenhausen, A., & Singer, T. (2016). Boosting recovery rather than buffering reactivity: Higher stress-induced oxytocin secretion is associated with increased cortisol reactivity and faster vagal recovery after acute psychosocial stress. Psychoneuroendocrinology, 74, 111-120. doi:10.1016/j.psyneuen.2016.08.029.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-F355-B Version Permalink: http://hdl.handle.net/21.11116/0000-0003-F356-A
Genre: Journal Article

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 Creators:
Engert, Veronika1, Author              
Koester, Anna M.1, Author
Riepenhausen, Antje1, Author
Singer, Tania1, Author              
Affiliations:
1Department Social Neuroscience, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634552              

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Free keywords: Stress; Reactivity; Recovery; Plasma oxytocin; Cortisol; Heart rate variability
 Abstract: Animal models and human studies using paradigms designed to stimulate endogenous oxytocin release suggest a stress-buffering role of oxytocin. We here examined the involvement of stress-induced peripheral oxytocin secretion in reactivity and recovery phases of the human psychosocial stress response. Healthy male and female participants (N = 114) were subjected to a standardized laboratory stressor, the Trier Social Stress Test. In addition to plasma oxytocin, cortisol was assessed as a marker of hypothalamic-pituitary-adrenal (HPA-) axis activity, alpha-amylase and heart rate as markers of sympathetic activity, high frequency heart rate variability as a marker of vagal tone and self-rated anxiety as an indicator of subjective stress experience. On average, oxytocin levels increased by 51% following psychosocial stress. The stress-induced oxytocin secretion, however, did not reduce stress reactivity. To the contrary, higher oxytocin secretion was associated with greater cortisol reactivity and peak cortisol levels in both sexes. In the second phase of the stress response the opposite pattern was observed, with higher oxytocin secretion associated with faster vagal recovery. We suggest that after an early stage of oxytocin and HPA-axis co-activation, the stress-reducing action of oxytocin unfolds. Due to the time lag it manifests as a recovery-boosting rather than a reactivity-buffering effect. By reinforcing parasympathetic autonomic activity, specifically during stress recovery, oxytocin may provide an important protective function against the health-compromising effects of sustained stress.

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Language(s): eng - English
 Dates: 2016-08-032016-05-042016-08-302016-08-312016-12
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.psyneuen.2016.08.029
PMID: 27608360
Other: Epub 2016
 Degree: -

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Title: Psychoneuroendocrinology
Source Genre: Journal
 Creator(s):
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Publ. Info: -
Pages: - Volume / Issue: 74 Sequence Number: - Start / End Page: 111 - 120 Identifier: ISSN: 0306-4530
CoNE: /journals/resource/954925514499