Ethnic discrimination (ED) is both an unfortunate and uncontrollable phenomenon that uniquely impacts African Americans (AAs) and other individuals of ethnic minority status. Perceived ethnic discrimination (PED), defined as the degree to which an individual consciously perceives a negative event as discriminatory and threatening, largely determines the impact that ED can have on target individuals. However, research has not yet considered how individual differences in both emotion regulation abilities, as indexed by resting high-frequency heart rate variability (HF-HRV), and rumination, a maladaptive emotion regulation strategy, may predict PED in AAs. The following investigation examined this relationship in a sample of 101 college-aged students (45 AAs and 56 Caucasian Americans). Resting HF-HRV was assessed via electrocardiogram during a 5-minute-resting period. Rumination was assessed using the ruminative responses scale and everyday PED was assessed using the perceived ethnic discrimination questionnaire. Results showed a significant negative relationship between resting HF-HRV and PED in AAs only. Rumination significantly moderated this relationship, such that lower HF-HRV was related to higher PED only in AAs who reported moderate to higher, &bgr; = 0.417 (0.125), p < .01, levels of trait rumination. These results suggest that greater HF-HRV and lesser ruminative tendencies are key factors in reducing PED and therefore possibly, negative consequences associated with ED.

中文翻译：

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反思抑制了静息高频心率变异性与感知种族歧视之间的联系

种族歧视（ED）既是不幸的也是不可控制的现象，对非裔美国人（AAs）和其他少数族裔身份的个人产生独特的影响。感知种族歧视（PED）定义为个人有意识地将负面事件视为歧视和威胁的程度，在很大程度上决定了ED对目标个人的影响。但是，研究还没有考虑情绪调节能力的个体差异（以静息高频心率变异性（HF-HRV）为指标）和反刍（适应不良的情绪调节策略）如何预测AA中的PED。以下调查在101名大学生（45名AA和56名美国白人）的样本中检查了这种关系。在5分钟的休息时间内通过心电图评估静息HF-HRV。使用反刍反应量表评估反刍力，并使用感知到的种族歧视问卷评估日常PED。结果表明静息HF-HRV与仅在AA中的PED之间存在显着负相关。反刍显着地缓和了这种关系，使得较低的HF-HRV仅与报告为中度至较高的AA中的PED较高有关。= 0.417（0.125），p <.01，特质反刍水平。这些结果表明，较大的HF-HRV和较小的反刍倾向是减少PED的关键因素，因此可能与ED相关联的负面后果。使用反刍反应量表评估反刍力，并使用感知到的种族歧视问卷评估日常PED。结果表明静息HF-HRV与仅在AA中的PED之间存在显着负相关。反刍显着地缓和了这种关系，使得较低的HF-HRV仅与报告为中度至较高的AA中的PED较高有关。= 0.417（0.125），p <.01，特质反刍水平。这些结果表明，较大的HF-HRV和较小的反刍倾向是减少PED的关键因素，因此可能与ED相关联的负面后果。使用反刍反应量表评估反刍力，并使用感知到的种族歧视问卷评估日常PED。结果表明静息HF-HRV与仅在AA中的PED之间存在显着负相关。反刍显着地缓和了这种关系，使得较低的HF-HRV仅与报告为中度至较高的AA中的PED较高有关。= 0.417（0.125），p <.01，特质反刍水平。这些结果表明，较大的HF-HRV和较小的反刍倾向是减少PED的关键因素，因此可能与ED相关联的负面后果。因此，仅在报告为中度到较高水平的AA中，较低的HF-HRV与较高的PED相关。= 0.417（0.125），p <.01，特质反刍水平。这些结果表明，较大的HF-HRV和较小的反刍倾向是减少PED的关键因素，因此可能与ED相关联的负面后果。因此，仅在报告为中度到较高水平的AA中，较低的HF-HRV与较高的PED相关。= 0.417（0.125），p <.01，特质反刍水平。这些结果表明，较大的HF-HRV和较小的反刍倾向是减少PED的关键因素，因此可能与ED相关联的负面后果。