Physiological adaptation to recurrent social stress of extraversion
Physiological adaptation to recurrent social stress of extraversion
复制标题
对外向性反复出现的社会压力的生理适应
DOI：
10.1111/psyp.12777
复制
发表时间：
2017-02-01
期刊：
影响因子：
3.7
通讯作者：
Wang, Zhenhong
中科院分区：
文献类型：
--
作者：
Lu, Wei;Wang, Zhenhong
本研究考察了外向性对生理反应、恢复和生理习惯化的影响--对重复的社会应激源的敏感性。在研究1中，收集了97名大学生的主观和生理数据，这些大学生被分为高外向(n=51)和低外向(n=46)，分基础、应激1、后应激1、应激2和后应激2五个阶段。结果表明，高外向(HE)参与者在第一次社会应激后心率(HR)反应和呼吸性窦性心律失常(RSA)退出相对较慢，HR和RSA恢复较完全，对第二次社会应激也表现出相对较低的HR反应性。当反复暴露于社会应激源时，HE参与者表现出明显的收缩压(SBP)适应性，低外倾(LE)参与者表现出舒张压(DBP)敏感性。在研究2中，另外78名参与者(HE：n=40，LE：n=38)在相同的实验室阶段收集了数据，并拍摄了言语表现的视频。在控制了言语风格后，研究2发现外倾组对社会压力的HR反应和SBP/DBP适应模式与研究1相同，但RSA反应性不同。这些发现表明，外向的人对反复出现的社会压力表现出更多的适应性生理反应，因此这可能有利于他们的健康。
The present studies examined the influence of extraversion on physiological reactivity, recovery, and physiological habituation-sensitization to repeated social stressors. In Study 1, subjective and physiological data were collected from 97 college students who were categorized as high (n=51) and low (n=46) on extraversion (NEO-FFI) across five laboratory stages: baseline, stress 1, poststress 1, stress 2, and poststress 2. Results indicated high extraversion (HE) participants exhibited relative lesser heart rate (HR) reactivity and respiratory sinus arrhythmia (RSA) withdrawals to, and more complete HR and RSA recovery after the first social stress, and also exhibited relative lesser HR reactivity to the second social stress. When repeatedly exposed to a social stressor, HE participants showed pronounced systolic blood pressure (SBP) adaptation, low extraversion (LE) participants displayed diastolic blood pressure (DBP) sensitization. In Study 2, data were collected from another 78 participants (HE: n=40, LE: n=38) across the same laboratory stages with speech performance videotaped. After controlling for the speech styles, Study 2 found the same HR response and SBP/DBP adaptation pattern across extraversion groups to social stress as Study 1 but not RSA reactivity. These findings suggest extraverts exhibit more adaptive physiological reactivity to recurrent social stressors, which thus might benefit their health.