Majeno Angelina, Urizar Guido G, Halim May Ling D, Nguyen-Rodriguez Selena T, Gonzalez Araceli
Department of Psychological Science, University of California, Irvine.
Department of Psychology, California State University, Long Beach.
Cultur Divers Ethnic Minor Psychol. 2021 Jan;27(1):135-144. doi: 10.1037/cdp0000401. Epub 2020 Jun 18.
This study examined whether the frequency of experiences of ethnic microaggressions and the sensitivity to such experiences were associated with cortisol responses to an acute social stressor (Trier Social Stress Test; TSST) among an ethnically diverse sample of young adults ( = 109, = 18.82 years, = 1.40 years, 74% female, 44% Latinx). Self-reported experiences of and sensitivity to microaggressions were assessed using the Everyday Microaggressions Scale. Participants' salivary cortisol was collected before, immediately after, and at three 15-min intervals after the TSST (for a total of 5 salivary samples) to assess their cortisol responses to an acute social stressor. Mixed model analyses revealed that experiencing a higher frequency of microaggressions ( = .005) and being more sensitive to those experiences ( = .001) were associated with a more blunted cortisol response (i.e., lower cortisol reactivity and recovery) to the TSST, relative to experiencing a lower frequency of microaggressions and being less sensitive to them. Furthermore, this blunted cortisol response to the TSST was more prominent among young adults of Latinx and other ethnic backgrounds (i.e., biracial, African American, and Native American) compared to their Asian American and non-Hispanic White peers ( = .034). Findings provide insight into the different ways in which experiences of ethnic microaggressions can be associated with biological markers of stress. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
本研究调查了在一个种族多样化的年轻成年人样本（n = 109，M = 18.82岁，SD = 1.40岁，74%为女性，44%为拉丁裔）中，种族微侵犯经历的频率以及对这些经历的敏感度是否与对急性社会应激源（特里尔社会应激测试；TSST）的皮质醇反应相关。使用日常微侵犯量表评估自我报告的微侵犯经历和对微侵犯的敏感度。在TSST之前、之后立即以及之后的三个15分钟间隔收集参与者的唾液皮质醇（总共5个唾液样本），以评估他们对急性社会应激源的皮质醇反应。混合模型分析显示，相对于微侵犯经历频率较低且对其敏感度较低的情况，经历较高频率的微侵犯（p = .005）以及对这些经历更敏感（p = .001）与对TSST的皮质醇反应更迟钝（即较低的皮质醇反应性和恢复能力）相关。此外，与亚裔美国人和非西班牙裔白人同龄人相比，拉丁裔和其他种族背景（即混血、非裔美国人和美洲原住民）的年轻成年人对TSST的这种迟钝皮质醇反应更为明显（p = .034）。研究结果为种族微侵犯经历与压力生物学标志物相关的不同方式提供了见解。（PsycInfo数据库记录（c）2021美国心理学会，保留所有权利）
