Family-of-origin aggression (FOA) exposure is a chronic childhood stressor that has been linked to altered stress reactivity of the hypothalamic-pituitary-adrenal (HPA) axis in adulthood. The effects of FOA also spill over between partners in romantic couples, such that one partner's FOA history influences the other's HPA reactivity during couple interactions. However, the direction of these effects is inconsistent, with both heightened and blunted HPA reactivity observed; this heterogeneity suggests the presence of moderators. This study measured HPA reactivity during emotionally vulnerable conversations between young adult romantic partners to assess whether romantic attachment avoidance accounts for this divergence by moderating actor and partner effects of FOA on HPA. A total of 112 opposite-sex couples (224 young adults) provided information on FOA and avoidance, completed dyadic interaction procedures, and provided saliva samples to assess HPA reactivity during interactions. Multilevel structural equation models revealed that FOA did not predict either the actor's or the partner's HPA reactivity. However, FOA and avoidance interacted to produce both actor and partner effects, such that greater FOA exposure heightened HPA reactivity when avoidance was high but blunted reactivity when avoidance was low. The results support the conjecture that proximal relationship-related characteristics, such as attachment avoidance, influence whether distal relationship-related stressors, such as FOA, amplify or attenuate physiological reactivity during emotionally vulnerable interactions. Because HPA reactivity has been linked to a variety of health outcomes, identifying relationship-related buffers of associations between FOA and HPA response may inform future interventions to protect health for FOA-exposed youth. (PsycINFO Database Record (c) 2020 APA, all rights reserved).

中文翻译：

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家庭攻击和依恋回避影响年轻成年夫妇的神经内分泌反应。

原生家庭攻击 (FOA) 暴露是一种慢性儿童压力源，与成年后下丘脑 - 垂体 - 肾上腺 (HPA) 轴的压力反应性改变有关。FOA 的影响也会在浪漫情侣的伴侣之间溢出，这样一个伴侣的 FOA 历史会影响另一方在情侣互动期间的 HPA 反应。然而，这些影响的方向不一致，观察到 HPA 反应性增强和减弱；这种异质性表明存在调节剂。这项研究测量了年轻成人浪漫伴侣之间情感脆弱对话期间的 HPA 反应性，以通过调节 FOA 对 HPA 的演员和伴侣影响来评估避免浪漫依恋是否解释了这种分歧。共有 112 对异性夫妇（224 名年轻人）提供了关于 FOA 和回避的信息，完成了二元互动程序，并提供了唾液样本来评估互动期间的 HPA 反应性。多级结构方程模型显示 FOA 无法预测参与者或合作伙伴的 HPA 反应性。然而，FOA 和回避相互作用产生了行动者和合作伙伴的效应，这样当回避高时，更多的 FOA 暴露会提高 HPA 反应性，而当回避低时，反应性减弱。结果支持了这样一个猜想，即近端关系相关的特征，如依恋回避，会影响远端关系相关的压力源，如 FOA，在情绪脆弱的互动中是否会放大或减弱生理反应。由于 HPA 反应性与各种健康结果有关，因此确定 FOA 和 HPA 反应之间关联的相关缓冲可能会为未来的干预措施提供信息，以保护暴露于 FOA 的青少年的健康。（PsycINFO 数据库记录 (c) 2020 APA，保留所有权利）。