Abstract
Abstract. Individual and shared goals can be achieved through social interpersonal interaction, cooperation and competition being two different yet similar strategies to reach such aims and objectives. Nevertheless, there is a gap in the literature analyzing the effect of these types of social interactions, especially in cooperation, on autonomic nervous system responses using noninvasive measures, such as heart rate (HR). The regulation of HR and other cardiovascular variables of the central nervous system offers information about how to encourage or discourage social engagement and prosocial behaviors. In fact, a more flexible engagement with the environment and efficient emotions regulation is enabled by an efficient cardiac control. Hence, the main aim of this study was to investigate heart rate variability (HRV) in strangers (180 healthy young participants) who were set to cooperate or compete in face-to-face dyads (between same-gender participants) or to work alone (as the control condition), considering outcomes in these tasks (positive or negative) and gender as moderating variables. We found that participants who cooperated had higher HRs and lower high frequency (HF) HRV than those who competed and/or worked alone. Regarding gender and outcome, men who cooperate and lose have lower HF-HRV levels than men on the simple task with negative outcomes. Hence, our study indicates that cooperation between strangers in face-to-face dyads may produce less parasympathetic activation than competition or working on the task without any social interaction. Research in this field may help us understand the psychophysiological basis of social interaction, providing an opportunity to establish interaction strategies that would be physiologically desirable, in order to promote well-being.
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