Gratitude expressions improve teammates' cardiovascular stress responses.

Gratitude expressions play a key role in strengthening relationships, suggesting gratitude might promote adaptive responses during teamwork. However, little research has examined gratitude's impact on loose tie relationships (like coworkers), and similarly little research has examined how gratitude impacts physiological stress responding or biological responses more generally. The present research uses an ecologically valid, dyadic teamwork paradigm to test how gratitude expressions impact in vivo physiological challenge and threat stress responding, assessed via a challenge-threat index composed of cardiac output and total peripheral resistance. Compared with a control condition, teammates (n = 190) who were randomly assigned to a gratitude expression manipulation showed improved biological challenge-threat responses while jointly completing an acutely stressful collaborative work task (developing a product pitch), and later while completing an individual performance task (pitching the product). During the collaborative task, gratitude expressions buffered against threat responses; during the individual task, gratitude expressions amplified challenge responses. Analyses of cardiac output (CO) and total peripheral resistance (TPR) aided in determining how cardiac outflow versus vascular constriction/dilation contributed to these effects. The finding that gratitude expressions promote adaptive biological responding at the dyadic level contributes to a growing literature on the social functions of positive emotions and gratitude, specifically. The present results also have wider implications for physiological stress in performance tasks and suggest that workplace gratitude interventions can promote adaptive stress responding in teams. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Empirical audit and review and an assessment of evidentiary value in research on the psychological consequences of scarcity.

Empirical audit and review is an approach to assessing the evidentiary value of a research area. It involves identifying a topic and selecting a cross-section of studies for replication. We apply the method to research on the psychological consequences of scarcity. Starting with the papers citing a seminal publication in the field, we conducted replications of 20 studies that evaluate the role of scarcity priming in pain sensitivity, resource allocation, materialism, and many other domains. There was considerable variability in the replicability, with some strong successes and other undeniable failures. Empirical audit and review does not attempt to assign an overall replication rate for a heterogeneous field, but rather facilitates researchers seeking to incorporate strength of evidence as they refine theories and plan new investigations in the research area. This method allows for an integration of qualitative and quantitative approaches to review and enables the growth of a cumulative science.

Emotion regulation contagion: Stress reappraisal promotes challenge responses in teammates.

The current research examined the interpersonal dynamics of emotion regulation in a stressful collaborative context. Little is known about how regulating one's own stress responses impacts teammates. In this article, we propose that individual efforts to regulate emotions can impact teammates for the better. We tested hypotheses arising from this claim using a dyadic experiment (N = 266) that assessed in vivo physiological stress responses during collaborative work (a face-to-face product design task) and then individual work (a product pitch to evaluators). Throughout the experiment, the manipulated teammate was randomly assigned to reappraise their stress arousal, suppress their emotional displays, or receive no instructions. The nonmanipulated teammate received no instructions in all experimental conditions. Stress reappraisal benefited both teammates, eliciting challenge-like physiological responses (higher cardiac output, lower total peripheral resistance) relative to the suppression and control conditions. These effects were observed during both collaborative and individual work. A mediation model suggested that face-to-face interpersonal effects of stress reappraisal fed forward to promote nonmanipulated teammates' improved stress responses during individual performance. Moreover, manipulated teammates' displays of positive and negative affect emerged as potential mechanisms for improvements in nonmanipulated teammates' stress responses in moderation analyses. Thus, participants benefited by interacting with a person who reappraised their stress as functional. This work has theoretical implications for the interpersonal dynamics of emotion regulation, and relevance for applied settings is also discussed. (PsycInfo Database Record (c) 2020 APA, all rights reserved).