Wound-dependent leg amputations to combat infections in an ant society.

Open wounds pose major infection and mortality risks in animals.1,2 To reduce these risks, many animal species apply antimicrobial compounds on their wounds.1,2,3,4 Ant societies use antimicrobial secretions from the metapleural gland to combat pathogens,5,6,7,8,9,10 but this gland has been lost over evolutionary time in several genera, including Camponotus.11 To understand how infected wounds are handled without the use of antimicrobial secretions from the metapleural gland, we conducted behavioral and microbiological experiments in Camponotus floridanus. When we experimentally injured a worker's leg at the femur, nestmates amputated the injured limb by biting the base (trochanter) of the leg until it was severed, thereby significantly increasing survival compared to ants that did not receive amputations. However, when the experimental injury was more distal (at the tibia), nestmates did not amputate the leg and instead directed more wound care to the injury site. Experimental amputations also failed to improve survival in ants with infected tibia injuries unless the leg was amputated immediately after pathogen exposure. Micro-CT scans revealed that the muscles likely responsible for leg hemolymph circulation are predominantly in the femur. Thus, it is likely that femur injuries, by attenuating hemolymph flow, provide sufficient time for workers to perform amputations before pathogen spread. Overall, this study provides the first example of the use of amputations to treat infected individuals in a non-human animal and demonstrates that ants can adapt their type of treatment depending on the location of wounds.

Investigating the role of adversity and benevolence beliefs in predicting prosociality.

BACKGROUND: Does experiencing adversity engender kindness, and if so, for whom? Two studies tested the hypothesis that adversity predicts increased pro-social outcomes, and that this relationship is strongest for individuals who view others as good and trustworthy, or benevolent. METHOD: In Study 1, a cross-sectional survey design was utilized, and in Study 2 a longitudinal survey was conducted. RESULTS: In Study 1 (N = 359), the number of lifetime adverse life events was associated with increased volunteering, empathic concern, and self-reported altruism. The association of adversity and altruism was stronger for those with greater benevolence beliefs. In Study 2 (N = 1157), benevolence beliefs were assessed, and in subsequent years, adverse life events were reported. The number of past-year adverse life events predicted more volunteering and charitable involvement, but only among people with high benevolence beliefs. CONCLUSION: Exposure to adversity may be associated with increased pro-social behavior among those with higher benevolence beliefs. In part, this could be due to benevolence beliefs increasing the expectation that one's efforts will be appreciated and reciprocated.

The core tendencies underlying prosocial behavior: Testing a person-situation framework.

OBJECTIVE AND BACKGROUND: According to a recently proposed theoretical framework, different personality traits should explain pro-social behavior in different situations. We empirically tested the key proposition of this framework that each of four "core tendencies" (i.e., the shared variance of related traits) specifically predicts pro-social behavior in the presence of a different situational affordance. METHODS: We used a large-scale dataset (N = 2479) including measures of various personality traits and six incentivized economic games assessing pro-social behavior in different social situations. Using bifactor modeling, we extracted four latent core tendencies and tested their predictive validity for pro-social behavior. RESULTS: We found mixed support for the theoretically derived, preregistered hypotheses. The core tendency of beliefs about others' pro-sociality predicted pro-social behavior in both games involving dependence under uncertainty, as expected. Unconditional concern for others' welfare predicted pro-social behavior in only one of two games providing a possibility for exploitation. For conditional concern for others' welfare and self-regulation, in turn, evidence relating them to pro-social behavior in the presence of a possibility for reciprocity and temporal conflict was relatively weak. CONCLUSION: Different features of social situations may activate different personality traits to influence pro-social behavior, but more research is needed to fully understand these person-situation interactions.

"Eco-caring together" pro-ecological group-based community interventions and mental wellbeing: a systematic scoping review.

Background: Poor mental wellbeing is a challenge for societies across the world, as is the increasing threat of climate change, and emerging evidence suggests these challenges are interrelated. Green and social prescribing of non-clinical interventions hold promise as a cost-effective and widely accessible way to improve wellbeing, and interest is growing in whether pro-ecological communal activities have mutual benefits for both people and the planet. Objectives: Communal pro-ecological activities are growing in popularity, and research is gathering pace into whether participation influences mental wellbeing. The present systematic review scopes the existing evidence base to explore what is being done, what is being found, and what additional research is required. Methods: Electronic databases (PsychNET, PubMed, Scopus, and Web of Science) were searched for studies that involved groups of people undertaking pro-ecological activities, where components of mental wellbeing were assessed. Eligibility criteria were purposely broad, including all study designs and participants across the lifespan. Results: Thirty-seven eligible studies were identified. Nearly half of the studies used mixed-method designs, and most studies used surveys or interviews to evaluate outcomes. Most pro-ecological activities involved planting vegetation, and habitat creation, maintenance, or restoration. Methodological quality varied considerably. Among the perceived therapeutic mechanisms reported, the social elements of the interventions were prominent. Discussion: Coherent synthesis of the current evidence base is challenging given the heterogeneous range of methods, samples, and interventions within the studies. However, the results here demonstrate promise that with future research and better methodological rigor, pro-ecological group-based interventions hold the potential to improve mental wellbeing and influence sustainable behavior. Systematic review registration: https://osf.io/vmpr6/.

The Neural Mechanism Underlying Differentiated In-Group Versus Out-Group Face Recognition and Memory, Identification, Empathy and Pro-social Behavior: Evidence from fMRI and ERP Studies.

In the context of perceiving individuals within and outside of social groups, there are distinct cognitive processes and mechanisms in the brain. Extensive research in recent years has delved into the neural mechanisms that underlie differences in how we perceive individuals from different social groups. To gain a deeper understanding of these neural mechanisms, we present a comprehensive review from the perspectives of facial recognition and memory, intergroup identification, empathy, and pro-social behavior. Specifically, we focus on studies that utilize functional magnetic resonance imaging (fMRI) and event-related potential (ERP) techniques to explore the relationship between brain regions and behavior. Findings from fMRI studies reveal that the brain regions associated with intergroup differentiation in perception and behavior do not operate independently but instead exhibit dynamic interactions. Similarly, ERP studies indicate that the amplitude of neural responses shows various combinations in relation to perception and behavior.

Mechanisms of Self-Control in the Influence of Moral Elevation on Pro-Social Behavior: A Study Based on an Experimental Paradigm.

Introduction: Because the mechanisms by which moral elevation triggers an individual's pro-social behavior remain unclear, this study examined the mediating role of self-control resources in the relationship between moral elevation and pro-social behavior. Methods: Experiment 1 examined the effects of moral elevation on self-control resources using two task paradigms, the Stroop task and the Go/NoGo task, with 80 college students as study participants. Experiment 2 was conducted with an additional 140 college students, using both experimental and questionnaire methods to examine the mediating role of self-control resources in the effects of moral elevation on pro-social behavior. Results: (1) The results of Experiment 1 showed that the self-control ability of the moral elevation induction group was significantly better than that of the non-induction group. The accuracy rate of self-control tasks in the induction group (0.94 ± 0.01) was significantly higher than that in the non-induction group (0.89 ± 0.01, F(1,79)=19.10, p <0.001, η2=0.50). The mean reaction time of the self-control tasks in the induction group (393.63 ± 3.5) was significantly lower than that in the non-induction group (415.38 ±7.30, F(1,79)=5.87, p =0.026, η2=0.24). (2) The results of Experiment 2 showed a significant positive correlation between moral elevation and self-control resources (r=0.46, p<0.001), a significant positive correlation between moral elevation and pro-social behavior (r=0.33, p<0.001), and a significant positive correlation between self-control resources and pro-social behavior (r=0.31, p<0.001). Not only did moral elevation significantly and positively predict pro-social behavior (ß= 0.23, p=0.011), but it also significantly and positively predicted self-control resources (ß= 0.46, p<0.001). Self-control resources significantly and positively predicted pro-social behavior (ß= 0.20, p=0.025). The bootstrap test for the mediating effect of self-control resources showed that the upper and lower limits of the 95% confidence interval did not include 0 (indirect effect 0.09, 95% CI [0.023, 0.242], p<0.001), and the mediating effect accounted for 28.13%. Conclusion: This study revealed the mediating role of self-control resources in the relationship between moral elevation and pro-social behavior, which has important theoretical and practical implications for cultivating pro-social behavior and moral education among college students.

It Is Belief in Dualism, and Not Free Will, That Best Predicts Helping: A Conceptual Replication and Extension of Baumeister et al. (2009).

Previous research found that experimentally reducing people's belief in free will affects social behaviors. However, more recent investigations could not replicate several findings in this literature. An explanation for the mixed findings is that free will beliefs are related to social behaviors on a correlational level, but experimental manipulations are not able to detect this relation. To test this interpretation, we conceptually replicated and extended a landmark study in the free will belief literature originally conducted by Baumeister et al. In five studies (total N = 1,467), we investigated whether belief in free will predicts helping behavior in comparison to other beliefs related to free will. Overall, our results support the original findings, as belief in free will correlated with helping behavior. However, the results also show that the best predictor of helping behavior is not belief in free will but belief in dualism. Theoretical implications are discussed.

The impact of the Community Resiliency Model (CRM) on the mental well-being of youth at risk for violence: A study protocol.

PURPOSE: Assess the effect of a brief, somatic awareness resiliency training, the Community Resiliency Model (CRM)®, on the mental well-being of incarcerated youth. SPECIFIC AIM 1: Explore the relationship between youth demographics and justice history to baseline well-being scores and response to treatment. Q1: How do personal variables, including length of time in juvenile justice, relate to baseline mental health scores and response to the wellness skills intervention? SPECIFIC AIM 2: Examine the mental health scores over time to determine effectiveness of participating in CRM training while incarcerated. Hypothesis 1: Well-being scores will increase after CRM training. Hypothesis 2: Emotional distress will decrease after participating in a CRM training. Hypothesis 3: Pro-social feelings and behaviors will increase after participating in a CRM training.

Testosterone facilitates nonreproductive, context-appropriate pro- and anti-social behavior in female and male Mongolian gerbils.

A growing body of literature suggests that testosterone (T) rapidly modulates behavior in a context-specific manner. However, the timescales in which T can rapidly mediate distinct types of behavior, such as pro- vs. anti- social responses, has not been studied. Thus, here we examined acute T influences on social behavior in male and female Mongolian gerbils in nonreproductive contexts. Females and males received an injection of either saline or T and were first tested in a social interaction test with a same-sex, familiar peer. 5 min after the peer interaction, subjects then underwent a resident-intruder test with a novel, same-sex conspecific. After another 5 min, gerbils were tested in a novel object task to test context-specificity (i.e., social vs. nonsocial) of T effects on behavior. Within 1 h, males and females injected with T exhibited more huddling with a peer but more active avoidance of and less time spent in proximity of an intruder than did animals injected with saline. T effects on behavior were specific to social contexts, such that T did not influence investigation of the novel object. Together these findings show that T rapidly promotes pro-social responses to a familiar peer and anti-social responses to an intruder in the same individuals within 5 min of experiencing these disparate social contexts. This demonstrates that T rapidly facilitates behavior in a context-appropriate manner outside the context of reproduction and reveals that rapid effects of T on behavior are not restricted to males.

"ZARPAR"-Educational Program for Cognitive and Behavioral Development: Results of an Experiment to Evaluate Its Impact on Antisocial and Pro-Social Behavior.

Using an experimental design and a multi-measure and multi-informant approach, the current study sought to evaluate the impact of the early developmental prevention program "ZARPAR"-an intervention designed as a social and cognitive skills training program, that seeks to promote children's behavioral adjustment. A sample of elementary school children (experimental group n = 37; control group n = 66), attending Portuguese schools, was assessed before and 6 months after the intervention on the program's key-dimensions: behavioral problems, social skills, and executive functioning. Based on parent and teacher reports, the results largely suggested that the intervention had no effect or, for some dimensions, even the existence of negative outcomes. Possible reasons for these results are discussed. The current study highlights that, despite the overwhelmingly positive message about developmental prevention programs, not all interventions work, thus reinforcing the need for rigorous evaluations, in order to enhance the success of future interventions.

Pictures of a crisis. Destination marketing organizations' Instagram communication before and during a global health crisis.

The COVID-19 pandemic enhanced social media communications at a time individuals were unable to leave their homes due to the lockdown measures. A lack of research has been identified on how destination marketing organizations use social media during global health crises. Addressing this gap, the present research uses a mixed-method approach to examine the use of Instagram by Milan and Paris' Destination Marketing Organizations before and during COVID-19 and user engagement with it. Via a quantitative content analysis, Study 1 reveals communication differences between destinations and a change in promotion focus during the pandemic. Both DMOs focus on posts portraying "Culture, History and Art", which signifies stability and eternity as opposed to uncertain times. Using a thematic analysis, Study 2 reveals that both organizations promoted pro-social behavior also by employing influencers. Overall, research results document tourism organizations' pro-social use of social media during a global health crisis.

Effects of outdoor artificial light at night on human health and behavior: A literature review.

The quality of life of human beings has improved tremendously through improved productivity, convenience, safety, and livability due to nighttime lights that illuminate outdoor work, leisure, and mobility. Recently, however, concerns have been growing over outdoor artificial light at night (ALAN) and its effects on human beings as well as ecosystems including animals and plants. This literature review aims to deliver a critical overview of the findings and the areas for future research on the effects of outdoor ALAN on human health and behaviors. Through a narrative literature review, we found that scientific research crucially lacks studies on the effects of outdoor ALAN on human behaviors and health, including social interaction, which may be more widespread compared to what is recognized so far. This review also highlights the importance of investigating the causal and complex relationships between outdoor ALAN, health, and behaviors with sleep as a key mediating factor. We elucidate that outdoor ALAN has both positive and negative effects on human life. Therefore, it is important for societies to be able to access facts and evidence about these effects to plan, agree to, and realize the optimal usage of nighttime lighting that balances its merits and demerits. Researchers in related areas of study must investigate and deliver the science of outdoor ALAN to various stakeholders, such as citizens, policymakers, urban and landscape planners, relevant practitioners, and industries. We believe that our review improves the understanding of outdoor ALAN in relation to human life and contributes to sustainable and thriving societies.

Emotional Intelligence and Pro-Social Behavior as Predictors of Academic Achievement Among University Students.

This journal article was primarily carried out to pinpoint whether emotional intelligence and pro-social behavior predicts academic achievement of University students. To achieve this, data was gathered from 111 (m = 50, F = 53) students by using stratified simple random sampling technique. As the results of Pearson correlation coefficient showed that, there was statistically significant positive association between emotional intelligence and pro-social behavior. However, it was found that there was no relationship between emotional intelligence and academic achievement. On the other hand, there was a statistically significant negative correlation between pro-social behavior and academic achievement of students. Findings from multiple regression indicated that, emotional intelligence predicted pro-social behavior of students, whereas, emotional intelligence didn't predict academic achievement of students. On the other hand, pro-social behavior negatively and significantly predicted academic achievement of students. Besides, there was no significant gender difference in emotional intelligence and pro-social behavior. However, there was statistically significant disparity amidst male and female students in academic achievement and male students exceed female counterparts in general level of academic performance. As one sample t-test result depicted, Majority of students have high level of emotional intelligence, pro-social behavior and academic performance. The researcher forwarded the following recommendations for instructors, the university management and Medias. Socio-emotional training's should be provided to students, intensive studies should be conducted on this topic, teachers of the university should advocate the importance of emotional intelligence and pro-social behavior in the class room, the university and broadcasting Medias should give attention for the topic.

Estimating the effect on happiness through question randomization: An application to blood donation.

We rely on the randomized activation of the heuristic of attribute substitution to analyze the effect of blood donation on donors' happiness. We randomly delivered two versions of a questionnaire where the happiness question is alternatively placed immediately before or after a categorical question asking about the blood donor condition of the respondent (non-donor, previously donor, donor). By comparing the answers given to the happiness question in the two versions, we find a positive effect of donating blood on donors' happiness. We discuss the pros and cons of this method to investigate the determinants of subjective well-being.

Traveler Pro-social Behaviors at Heritage Tourism Sites.

This study aimed to explain the development of tourists' pro-social intentions during heritage tourism within the pandemic context by combining the norm activation model (NAM) and two significant variables in the theory of planned behavior (TPB). The quantitative data analysis results indicated that the proposed hypotheses have been partially supported, which resonated and enriched the existing studies on COVID-19-related pro-social tourism and tourist behaviors from a theoretical angle. Based on the research outcomes, the corresponding managerial implications for heritage tourism practitioners and meaningful references for future researchers to promote sustainable and pro-social heritage tourism products have been discussed.

To Steal or Not to Steal: Self-Discrepancies as a Way to Promote Pro-social Behavior: The Moderating Role of Self-Interest.

Previous research showed that acting immorally on one occasion can determine a greater availability for pro-social behavior on a subsequent occasion. Nevertheless, moderating factors for this effect, such as financial interest remained largely unexplored. The present field experiment (N = 587) was organized in an urban setting, in a post-communist society (Romania), in a context of public anonymity and examined passersby's pro-social behavior on two consecutive occasions. The procedure involved a confederate "losing" a banknote of different values (1, 10, 50, 100, or 500 RON), which invited passersby's pro-social behavior to return it (or not). Participants who decided to steal the banknote were approached by a second confederate and asked politely to return the banknote. Our research was articulated mainly as a quantitative approach by measuring participants' pro-social behavior toward the person who lost the banknote, their subsequent pro-social behavior toward the confederate who exposed their behavior and the number of words they produced during a post-experimental interview in which they could justify their behavior. At the same time, we also performed a qualitative approach, through which we explored the themes evoked in their justifications and their relation with their previous behavior. Results indicate a moderating effect of economic interest on pro-social behavior toward the confederate who lost the banknote, as well as on their subsequent pro-social behavior toward the second confederate. Participants who stole the banknote also used significantly more words to justify their behavior, and this tendency could be observed especially in the case for higher values of the banknote. Results are critically discussed in a context dominated by an inherited pattern of distrust and social cynicism.

The Effect of Family Atmosphere on Chinese College Students' Pro-social Behavior: The Chained Mediation Role of Gratitude and Self-Efficacy.

The current study aimed to explore how family atmosphere influenced pro-social behavior among Chinese college students and to explore the mediation roles of gratitude and self-efficacy. We recruited 800 Chinese college students, and the participation rate was 89% (712 participants, M = 19.26, SD = 1.23). Participants completed the family atmosphere scale, the pro-social tendencies measure, the gratitude questionnaire, and the general self-efficacy scale. Results indicated that (1) Family atmosphere, gratitude, self-efficacy, and pro-social behavior were positively correlated after controlling for the grade, gender, and age. (2) The family atmosphere affected pro-social behavior not only directly, but also indirectly through the partial mediating role of gratitude and self-efficacy. Moreover, gratitude and self-efficacy also played a full chained mediation role in the relationship between the family atmosphere and pro-social behavior of college students. Therefore, a supportive family atmosphere is conducive to promoting college students' gratitude and self-efficacy, in turn affecting their pro-social behavior.

Explicating Child-Driven Patterns of Parent-Child Responsivity in Fragile Families: A Longitudinal Approach.

It has been well-established that development occurs in the context of a transactional framework, with bidirectional parent-child interactions influencing both proximal and distal outcomes. In particular, child vocabulary development is sensitive to parenting qualities including warmth, sensitivity, and control as well as parental stimulation including language input and access to learning enrichment activities. Similarly, these parenting qualities are influenced by and influence children's development of pro-social behaviors. Given the foundational role of both language and pro-social skills for academic achievement and the establishment of healthy relationships across the lifespan, a comprehensive understanding of the magnitude, stability, and reciprocity of such interactions across childhood has the potential to better inform early intervention and prevention practices and highlight risk and resilience factors. This study investigated the concurrent and successive transactional relationships between child pro-social behavior, child emergent language, and parenting qualities within a large, longitudinal sample. This study utilized Waves 3, 4, and 5 of the Fragile Families and Child Well Being Study (FFCWBS), corresponding to focal child age 3, 5, and 9 years, respectively. A series of Structural Equation Modeling (SEM) with full-information likelihood (FIML) estimation (n = 3,422) including child prosocial behavior, receptive vocabulary, and supportive parenting behaviors was tested and compared. Our findings indicate significant, positive associations over time between child pro-social behavior and receptive vocabulary, and parenting quality across all three stages of early child development. The steady decline in magnitude of these associations over time highlights the importance of synergistic parent-child interactions in toddlerhood as an early opportunity to propel these developmental outcomes and supportive parenting behaviors. Patterns of change in child pro-social behavior skills and parenting qualities remained positive and relatively stable, while observed growth in child receptive vocabulary skills increased in magnitude over time. Additional investigation of indirect effects specified the role of receptive vocabulary, as well as the bolstering role of prosocial behavior, in eliciting responsive parenting qualities over time.

Leader's Perception of Corporate Social Responsibility and Team Members' Psychological Well-Being: Mediating Effects of Value Congruence Climate and Pro-Social Behavior.

Previous research, that showed that corporate social responsibility (CSR) had positive effects on the corporate image and performance, has attracted much attention and resulted in an increasing number of follow-up studies. However, CSR-related activities are focused on their effect on external stakeholders, although they are social service activities geared towards internal and external stakeholders, thus showing a research gap regarding the effects of internal stakeholders on organizational effectiveness. Therefore, this study investigated the mediating effects of the value congruence climate and prosocial behavior among the team members in the relationship between leader's CSR perception and team members' psychological well-being, using a multilevel analysis of the relationship between the team and individual level factors. For the empirical analysis, 69 teams (334 employees) were sampled from 23 Korean small and medium-sized enterprises (SMEs). Analyses revealed a positive effect of a leader's CSR perception on the team members' psychological well-being. Furthermore, a leader's CSR perception had a positive effect on his/her team's value congruence environment and team members' prosocial behavior. The team's value congruence environment and team members' prosocial behavior were found to mediate the relationship between the leader's CSR perception and team members' psychological well-being. The relationships among these variables were investigated using a multilevel analysis model capable of simultaneous validation of team- and individual-level factors associated with team members' psychological well-being. Future research directions were then discussed based on the theoretical and practical implications and limitations of the study results.

I Care About Your Plight, But Only If I Like Your Leader: The Effect of National Leaders' Perceived Personality on Empathy and Pro-Social Behavior Towards Their Citizenry.

People's default levels of empathy toward members of a distant group tend to be low. The current research shows that favorable perceptions regarding the personality of a group's leader can stimulate empathy and pro-social behavior toward his or her countrymen. In four experimental studies (N = 884), we found that exposure to a news article that positively (vs. negatively) characterizes a foreign national leader (vs. non-national leader) led to (a) increased levels of empathy toward distressed citizens of that leader's nation, (b) willingness to help those citizens, (c) motivation to invest time in inspecting additional information elucidating the circumstances that led to this adversity, and (d) an actual monetary donation for the benefit of those people. This effect turned out to be prominent when the national leader's domestic popularity was perceived as high. The results show that national leaders are in a position to contribute to more empathetic inter-society relations and enhance pro-social behavior.