BACKGROUND Heart rate variability (HRV) is discussed to signal social safety. Conversely, shyness might be accompanied by attenuated feelings of social safety. This study aimed to examine if shy individuals show compromised HRV in everyday life and if social interactions with close others (both face to face and computer-mediated) might moderate this association. METHODS Social interactions and HRV (root mean squared successive differences) were recorded across three consecutive days in 51 participants. FINDINGS HRV was lower in shy as compared to non-shy individuals. When interacting with close others, HRV in shy individuals increased considerably, while there was no effect for non-shy individuals. Exploratory analyses confirmed that effects were more reliable for face-to-face as compared to computer-mediated interactions. DISCUSSION Shyness may be associated with compromised social engagement as indicated by lower HRV. However, shy individuals may benefit from face-to-face interactions with close others, thus suggesting a buffering effect on cardiac function.

中文翻译：

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害羞的心可能会受益于与亲密他人的日常生活社交互动：使用贝叶斯多级建模的生态瞬时评估试验

背景心率变异性（HRV）被讨论以表示社会安全。相反，害羞可能伴随着减弱的社会安全感。这项研究旨在检查害羞的人是否在日常生活中表现出受损的 HRV，以及与亲密他人的社交互动（面对面的和计算机介导的）是否可能会缓和这种关联。方法 连续三天记录 51 名参与者的社会互动和 HRV（均方根连续差异）。发现 与不害羞的人相比，害羞的人的 HRV 较低。当与亲密的人互动时，害羞个体的 HRV 显着增加，而对非害羞个体没有影响。探索性分析证实，与计算机介导的交互相比，面对面的效果更可靠。讨论 害羞可能与较低的 HRV 所表明的社会参与度降低有关。然而，害羞的人可能会从与亲密他人的面对面互动中受益，从而表明对心脏功能有缓冲作用。