Too much of a good thing? Cardiac vagal tone's nonlinear relationship with well-being.

Emotion Too Much of a Good Thing? Cardiac Vagal Tone's Nonlinear Relationship With Well-Being

BRIEF REPORT Too Much of a Good Thing? Cardiac Vagal Tone’s Nonlinear Relationship With Well-Being

Parasympathetic regulation of heart rate through the vagus nerve—often measured as resting respiratory sinus arrhythmia or cardiac vagal tone (CVT)—is a key biological correlate of psychological well-being. However, recent theorizing has suggested that many biological and psychological processes can become maladaptive when they reach extreme levels. This raises the possibility that CVT might no...

Too much of a good thing? Exploring the inverted-U relationship between self-control and happiness.

OBJECTIVE Can having too much self-control make people unhappy? Researchers have increasingly questioned the unilateral goodness of self-control and proposed that it is beneficial only up to a certain point, after which it becomes detrimental. The little empirical research on the issue shows mixed results. Hence, we tested whether a curvilinear relationship between self-control and subjective w...

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PERSONALITY PROCESSES AND INDIVIDUAL DIFFERENCES Vagal Activity Is Quadratically Related to Prosocial Traits, Prosocial Emotions, and Observer Perceptions of Prosociality

In the present article, we introduce the quadratic vagal activity–prosociality hypothesis, a theoretical framework for understanding the vagus nerve’s involvement in prosociality. We argue that vagus nerve activity supports prosocial behavior by regulating physiological systems that enable emotional expression, empathy for others’ mental and emotional states, the regulation of one’s own distres...