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首页> 外文期刊>Psychosomatic Medicine: Journal of the American Psychosomatic Society >Stress-induced cortisol level elevations are associated with reduced negative affect after stress: indications for a mood-buffering cortisol effect.
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Stress-induced cortisol level elevations are associated with reduced negative affect after stress: indications for a mood-buffering cortisol effect.

机译：压力引起的皮质醇水平升高与压力后的负面影响减少有关：抑制情绪的皮质醇作用的指征。

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OBJECTIVE: Stress is associated with increased negative affect and activation of the sympathetic nervous system and of the hypothalamic-pituitary-adrenal axis. However, the relationship between these stress systems and negative affect is incompletely understood. We therefore investigated positive and negative affects in relationship with salivary cortisol and salivary alpha-amylase (sAA) levels in a large sample of participants exposed to a psychosocial stressor or a control condition. METHODS: Cortisol and sAA levels from five studies with a total sample size of 232 participants were reanalyzed using hierarchical linear modeling. In these studies, we measured affective responses to the Trier Social Stress Test (TSST) and its control condition (placebo TSST) with the Positive and Negative Affect Schedule. RESULTS: An inverse relationship between cortisol and negative affect was observed across all participants (beta(06) = -0.13, p = .002). Higher level of negative affect was associated with lower mean cortisol levels 10 minutes after the TSST or the control condition. When the two conditions were tested separately, the effect was significant in the stress condition (beta(06) = -0.05, p = .02) but not in the control condition (beta(06) = -0.0008, p > .05). In contrast to the results for cortisol, a positive relationship was found between sAA and negative affect within the stress condition (beta(06) = 0.10, p = .005). CONCLUSIONS: The present findings suggest that cortisol is associated with an attenuated negative emotional arousal in response to acute stress, whereas sAA levels seem to reflect the degree of negative emotional arousal. Together with previous pharmacological studies, these data seem to support the hypothesis of mood-buffering effects of cortisol.
机译：目的：压力与交感神经系统以及下丘脑-垂体-肾上腺轴的负面影响增加和激活有关。但是，这些压力系统和负面影响之间的关系尚不完全清楚。因此，我们在暴露于社会心理压力源或控制条件的大量参与者中调查了与唾液皮质醇和唾液α-淀粉酶（sAA）水平相关的正面和负面影响。方法：使用分层线性模型重新分析了来自五项研究的皮质醇和sAA水平，共有232名参与者。在这些研究中，我们使用积极和消极情绪时间表测量了对特里尔社交压力测试（TSST）及其控制条件（安慰剂TSST）的情感反应。结果：在所有参与者中，皮质醇和负面影响之间呈反比关系（beta（06）= -0.13，p = .002）。 TSST或对照条件后10分钟，较高的负面影响与较低的平均皮质醇水平相关。分别测试这两个条件时，在压力条件下（beta（06）= -0.05，p = .02）效果显着，而在对照条件下（beta（06）= -0.0008，p> .05）则效果不明显。与皮质醇的结果相反，在应激条件下，sAA与负面影响之间存在正相关关系（β（06）= 0.10，p = .005）。结论：目前的发现表明，皮质醇与对急性应激反应的消极负情绪唤醒有关，而sAA水平似乎反映了负情绪唤醒的程度。与以前的药理研究一起，这些数据似乎支持了皮质醇的情绪缓冲作用假说。

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