Why stress and hunger both increase and decrease prosocial behaviour

Recalling experiences of scarcity reduces children's generosity relative to recalling abundance

Does a sense of having less or more than what one needs affect one's generosity? The question of how resource access influences prosocial behavior has received much attention in studies with adults but has produced conflicting findings. To better understand this relationship, we tested whether resource access affects generosity in the developing mind. In our preregistered investigation, we used a narrative recall method to explore how temporary, experimentally evoked states of resource abundance or scarcity affect children's sharing. In this study, 6- to 8-year-old American children (N = 148) recalled an experience of scarcity or abundance and then chose how many prizes to share with another child. We found that children in the scarce condition rated themselves as sadder, viewed their resource access as more limited, and shared fewer tokens than children in the abundant condition. Our results indicate that recalling past experiences of resource access creates distinct behavioral consequences for children and suggest that a sense of "having less" may encourage a strategy of resource conservation relative to a sense of "having more," even at a young age.

Acute stress reduces effortful prosocial behaviour

Acute stress can change our cognition and emotions, but what specific consequences this has for human prosocial behaviour is unclear. Previous studies have mainly investigated prosociality with financial transfers in economic games and produced conflicting results. Yet a core feature of many types of prosocial behaviour is that they are effortful. We therefore examined how acute stress changes our willingness to exert effort that benefits others. Healthy male participants - half of whom were put under acute stress - made decisions whether to exert physical effort to gain money for themselves or another person. With this design, we could independently assess the effects of acute stress on prosocial, compared to self-benefitting, effortful behaviour. Compared to controls (n = 45), participants in the stress group (n = 46) chose to exert effort more often for self- than for other-benefitting rewards at a low level of effort. Additionally, the adverse effects of stress on prosocial effort were particularly pronounced in more selfish participants. Neuroimaging combined with computational modelling revealed a putative neural mechanism underlying these effects: more stressed participants showed increased activation to subjective value in the dorsal anterior cingulate cortex and anterior insula when they themselves could benefit from their exerted effort relative to when someone else could. By using an effort-based task that better approximates real-life prosocial behaviour and incorporating trait differences in prosocial tendencies, our study provides important insights into how acute stress affects prosociality and its associated neural mechanisms.

The Hypothalamus-Pituitary-Adrenal Axis and Social Cognition in Borderline Personality Disorder

Borderline personality disorder (BPD) is characterized by emotional instability, impulsivity and unstable interpersonal relationships. Patients experience discomforting levels of distress, inducing symptoms like dissociation, aggression or withdrawal. Social situations are particularly challenging, and acute social stress can reduce patients' cognitive and social functioning. In patients with Major Depressive Disorder or Posttraumatic Stress Disorder, which show high comorbidity with BPD, the endocrine stress response is characterized by Hypothalamus-Pituitary-Adrenal (HPA) axis dysfunction, which affects cognitive functioning. Compared to these clinical groups, research on HPA-axis function in BPD is relatively scarce, but evidence points towards a blunted cortisol reactivity to acute stress. Since BPD patients are particularly prone to social stress and experience high subjective difficulties in these situations, it seems plausible that HPA-axis dysregulation might contribute to decreased social cognition in BPD. The present review summarizes findings on the HPA-axis function in BPD and its association with social cognition following acute social stress. For this purpose, we review literature that employed a widely used social stressor (Trier Social Stress Test, TSST) to study the effects of acute social stress on social cognition and the HPA-axis response. We contrast these findings with studies on social cognition that employed Cyberball, another widely used social stressor that lacks HPA-axis involvement. We conclude that research on social cognition in BPD reveals heterogeneous results with no clear relationship between social functioning and HPA-axis response. More research is needed to better understand the psychophysiological underpinnings of impaired social cognition in BPD.

The acute effects of stress on dishonesty are moderated by individual differences in moral default

In daily life we regularly must decide whether to act dishonestly for personal gain or to be honest and maintain a positive image of ourselves. While evidence suggests that acute stress influences moral decisions, it is unclear whether stress increases or decreases immoral behavior. Here, we hypothesize that stress, through its effects on cognitive control, has different effects on moral decision making for different individuals, depending on their moral default. We test this hypothesis by combining a task which allows for inconspicuously measuring spontaneous cheating with a well-established stress induction task. Our findings confirm our hypothesis, revealing that effects of stress on dishonesty are not uniform, but instead depend on the individual: for those who are relatively dishonest, stress increases dishonesty, whereas for participants who are relatively honest stress makes them more honest. These findings go a long way in resolving the conflicting findings in the literature on the effects of stress on moral decisions, suggesting that stress affects dishonesty differently for different individuals, depending on their moral default.

More Relaxed but Less Helpful: The Relationship between Stress, Age, and Self-Reported Prosocial Behavior during the COVID-19 Pandemic

(1) Background: The COVID-19 pandemic has collectively increased stress levels, with individuals making difficult choices between protecting themselves and helping others. Previous research has shown that people engage in more prosocial, or helping, behavior as they age and in moments of acute stress, but it is unclear how c stress has influenced perceived changes in prosocial behavior in the later stages of the pandemic and whether this varies across the lifespan. (2) Methods: The current study explored how perceived stress, age, and gender impact participants’ reports of perceived changes in their prosocial behavior due to the pandemic using survey questions administered through an online subject pool (n = 201). (3) Results: Hierarchical linear regression results revealed results indicated a significant main effect of perceived stress (β = −0.166, p = 0.021) and age (β = −0.217, p = 0.003) but not gender (β = −0.062, p = 0.370) on perceptions of how one’s prosocial behavior was affected by the COVID-19 pandemic. (4) Conclusions: Study findings showed that older adults and individuals with higher levels of perceived stress reported a decrease in their prosocial behavior, which supported our hypotheses. These findings provide unique insight into the influence of a long-term health crisis on different groups of people’s participation in prosocial behavior, with implications for mental health and community engagement during a pandemic.

State relationship orientation and helping behaviors: the influence of hunger and trait relationship orientations

Exchange orientation (EO) and communal orientation (CO) are two fundamental relationship orientations (ROs). We argue that state RO (i.e., the relative activation of the two ROs at a specific moment) varies across situations and should be differentiated from trait ROs. In two studies, we examined how state RO affected subsequent helping behaviors and how it was influenced by a situational factor (i.e., hunger). We also examined whether trait ROs moderated the above links. An eye-tracking paradigm (Study 1) and a scenario-based paradigm (Study 2) were adopted to assess state RO. The two studies consistently found that relatively more activation of state EO over state CO reduced helping tendency toward strangers (Study 1) and acquaintances (Study 2). High trait CO amplified the effect in Study 1. Moreover, hunger heightened the relative activation of state EO over state CO in both studies, but the effect was only significant for participants with high trait EO in Study 1. The results highlight the importance to study the momentary variation of ROs and open new research directions.

Supplementary information

The online version contains supplementary material available at 10.1007/s12144-022-03666-y.

Associations between burnout symptoms and social behaviour: exploring the role of acute stress and vagal function

BACKGROUND

The study aimed to investigate the link between burnout symptoms and prosocial behaviour, as well as the role of acute stress and vagally-mediated heart rate variability (vmHRV) on this association.

METHODS

Seventy men were randomly assigned to either the stress or the control condition of the Trier Social Stress Test for Groups (TSST-G). Prosocial behaviour was assessed via a social decision-making paradigm during the respective TSST-G condition.

RESULTS

Correlation analyses revealed negative correlations between prosocial behaviour and burnout symptoms. Acute stress was also associated with reduced prosocial behaviour, whereas no interaction effects with burnout symptoms could be revealed. Exploratory analyses showed that vmHRV was negatively correlated with burnout symptoms during the social decision-making paradigm but did not mediate the link between burnout and prosocial behaviour.

CONCLUSION

In conclusion, we report first experimental evidence that burnout symptoms are negatively associated with prosocial behaviour. Further studies are needed to explore the causal relations.

Social Value Orientation Moderated the Effect of Acute Stress on Individuals' Prosocial Behaviors

Acute stress is believed to lead to prosocial behaviors via a "tend-and-befriend" pattern of stress response. However, the results of the effect of acute stress on prosocial behavior are inconsistent. The current study explores the moderating effect of gender and social value orientation on the relationship between acute stress and individuals' pure prosocial behaviors (i.e., pure prosociality and prosocial third-party punishment). Specifically, eighty-one participants were selected and underwent the Trier Social Stress Test (or were in the control group), followed by the third-party punishment task and the dictator game. The results showed that, in general, the main effect of condition or respiratory sinus arrhythmia (RSA) reactivity on individual prosocial behaviors was significant and did not vary between genders. Furthermore, social value orientation (i.e., prosocial or self-orientation) might moderate the impact of RSA reactivity on the amount of punishment in the third-party punishment task. That is, individuals with self-orientation exhibited more prosocial third-party punishment as RSA reactivity decreased, while the effect did not occur for individuals with prosocial orientation. Taken together, the findings of the current study provide further evidence for the "tend-and-befriend" hypothesis and highlight the underlying physical mechanisms as well as the individual dependence of the effect of psychosocial stress on individuals' pure prosocial behaviors.