Gruenewald Tara L, Kemeny Margaret E, Aziz Najib, Fahey John L
Department of Medicine/Geriatrics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095-1687, USA.
Psychosom Med. 2004 Nov-Dec;66(6):915-24. doi: 10.1097/01.psy.0000143639.61693.ef.
Our Social Self Preservation Theory asserts that situations which threaten the "social self" (ie, one's social value or standing) elicit increased feelings of low social worth (eg, shame), decrements in social self-esteem, and increases in cortisol, a hormone released by the hypothalamic-pituitary-adrenal axis. To test our theoretical premise, cognitive, emotional, and physiological responses to the performance of laboratory stressor tasks were compared in participants who performed these tasks in the presence or absence of social-self threat.
Pre- and poststressor emotion, self-esteem, heart rate, blood pressure, and salivary cortisol were compared in 81 participants randomly assigned to complete speech and mental arithmetic stress tasks with social evaluation present (n = 41) or absent (n = 40).
As hypothesized, participants in the social evaluation condition exhibited greater increases in shame and greater decrements in social self-esteem. Other psychological states (eg, anxiety, performance self-esteem) did not show differential changes as a function of the social context. Salivary cortisol increased in social evaluation condition participants but did not increase in participants who performed the same tasks in the absence of social evaluation. Cortisol increases were greater in participants who experienced greater increases in shame and greater decreases in social self-esteem under social-self threat.
Threat to the social self is an important elicitor of shame experience, decreases in social self-esteem and cortisol increases under demanding performance conditions. Cortisol changes may be specifically tied to the experience of emotions and cognitions reflecting low self-worth in this context.
我们的社会自我保护理论认为,威胁“社会自我”(即一个人的社会价值或地位)的情境会引发社会价值感低落(如羞耻感)增强、社会自尊下降,以及下丘脑 - 垂体 - 肾上腺轴释放的一种激素——皮质醇增加。为了检验我们的理论前提,我们比较了在有或没有社会自我威胁的情况下完成实验室应激源任务的参与者的认知、情绪和生理反应。
对81名参与者进行了应激源前后的情绪、自尊、心率、血压和唾液皮质醇的比较,这些参与者被随机分配在有社会评价(n = 41)或无社会评价(n = 40)的情况下完成演讲和心算应激任务。
正如假设的那样,处于社会评价条件下的参与者羞耻感增加得更多,社会自尊下降得更多。其他心理状态(如焦虑、表现自尊)并未表现出因社会背景不同而产生的差异变化。社会评价条件下的参与者唾液皮质醇增加,但在没有社会评价的情况下完成相同任务的参与者中,唾液皮质醇并未增加。在社会自我威胁下羞耻感增加更多、社会自尊下降更多的参与者,其皮质醇增加幅度更大。
对社会自我的威胁是羞耻体验、社会自尊下降以及在高要求表现条件下皮质醇增加的重要诱因。在这种情况下,皮质醇的变化可能与反映低自我价值的情绪和认知体验有特定关联。