Stress response in dissociation and conversion disorders: a systematic review

Contact with nature is widely considered to ameliorate psychological stress, but the empirical support for a causal link is limited. We conducted a systematic review to synthesize and critically assess the evidence. Six electronic databases were searched. Twenty-six studies evaluated the difference between the effect of natural environments and that of a suitable control on the acute psychophysiological stress response. Eighteen studies were rated as being of moderate quality, 4 low quality, and 4 high quality. Meta-analyses indicated that seated relaxation (g = .5, p =.06) and walking (g = .3, p =.02) in natural environments enhanced heart rate variability more than the same activities in control conditions. Cortisol concentration measures were inconsistent. While intuitively and theoretically sound, the empirical support for acute stress-reducing effects of immersion in natural environments is tentative due to small sample sizes and methodological weaknesses in the studies. We provide guidelines for future research.

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The anticipatory stress response to sport competition; a systematic review with meta-analysis of cortisol reactivity

BMJ Open Sport & Exercise Medicine ◽

10.1136/bmjsem-2017-000261 ◽

2017 ◽

Vol 3 (1) ◽

pp. e000261 ◽

Cited By ~ 21

Author(s):

Kjell N van Paridon ◽

Matthew A Timmis ◽

Charlotte M Nevison ◽

Matt Bristow

Keyword(s):

Systematic Review ◽

Stress Response ◽

Meta Analysis ◽

Cortisol Reactivity ◽

Sport Competition

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Social defeat protocol and relevant biomarkers, implications for stress response physiology, drug abuse, mood disorders and individual stress vulnerability: a systematic review of the last decade

Trends in Psychiatry and Psychotherapy ◽

10.1590/2237-6089-2014-0034 ◽

2015 ◽

Vol 37 (2) ◽

pp. 51-66 ◽

Cited By ~ 31

Author(s):

Mailton Vasconcelos ◽

Dirson João Stein ◽

Rosa Maria M. de Almeida

Keyword(s):

Systematic Review ◽

Stress Response ◽

Social Defeat ◽

Stress Adaptation ◽

Addictive Behaviors ◽

Depression And Anxiety ◽

Stress Effects ◽

Stress Vulnerability ◽

Search Terms ◽

The Brain

Introduction: Social defeat (SD) in rats, which results from male intraspecific confrontations, is ethologically relevant and useful to understand stress effects on physiology and behavior.Methods: A systematic review of studies about biomarkers induced by the SD protocol and published from 2002 to 2013 was carried out in the electronic databases PubMed, Web of Knowledge and ScienceDirect. The search terms were: social defeat, rat, neurotrophins, neuroinflammatory markers, and transcriptional factors.Results: Classical and recently discovered biomarkers were found to be relevant in stress-induced states. Findings were summarized in accordance to the length of exposure to stress: single, repeated, intermittent and continuous SD. This review found that the brain-derived neurotrophic factor (BDNF) is a distinct marker of stress adaptation. Along with glucocorticoids and catecholamines, BDNF seems to be important in understanding stress physiology.Conclusion: The SD model provides a relevant tool to study stress response features, development of addictive behaviors, clinic depression and anxiety, as well as individual differences in vulnerability and resilience to stress.

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Surgical Stress Response and Enhanced Recovery after Laparoscopic Surgery - A systematic review

Chirurgia ◽

10.21614/chirurgia.113.4.455 ◽

2018 ◽

Vol 113 (4) ◽

pp. 455 ◽

Cited By ~ 6

Author(s):

Jacopo Crippa ◽

Gulio M. Mari ◽

Angelo Miranda ◽

Andrea T.M. Costanzi ◽

Dario Maggioni

Keyword(s):

Systematic Review ◽

Laparoscopic Surgery ◽

Stress Response ◽

Enhanced Recovery ◽

Surgical Stress ◽

Surgical Stress Response

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Effects of Public Green Space on Acute Psychophysiological Stress Response: A Systematic Review and Meta-Analysis of the Experimental and Quasi-Experimental Evidence

Environment and Behavior ◽

10.1177/0013916519873376 ◽

2019 ◽

pp. 001391651987337 ◽

Cited By ~ 5

Author(s):

Lærke Mygind ◽

Eva Kjeldsted ◽

Rikke Hartmeyer ◽

Erik Mygind ◽

Matt P. Stevenson ◽

...

Keyword(s):

Systematic Review ◽

Stress Response ◽

Acute Stress ◽

Meta Analysis ◽

Empirical Support ◽

Causal Link ◽

Small Sample ◽

Future Research ◽

Natural Environments ◽

Psychophysiological Stress

Contact with nature is widely considered to ameliorate psychological stress, but the empirical support for a causal link is limited. We conducted a systematic review to synthesize and critically assess the evidence. Six electronic databases were searched. Twenty-six studies evaluated the difference between the effect of natural environments and that of a suitable control on the acute psychophysiological stress response. Eighteen studies were rated as being of moderate quality, four studies of low quality, and four studies of high quality. Meta-analyses indicated that seated relaxation ( g = .5, p = .06) and walking ( g = .3, p = .02) in natural environments enhanced heart rate variability more than the same activities in control conditions. Cortisol concentration measures were inconsistent. While intuitively and theoretically sound, the empirical support for acute stress-reducing effects of immersion in natural environments is tentative due to small sample sizes and methodological weaknesses in the studies. We provide guidelines for future research.

Download Full-text