Sexually dimorphic preference for altruism in the opposite sex according to recipient

Sexual selection may affect human altruistic behaviour. Evolutionary psychology predicts that human mate preference reflects sexual selection. We investigated sex differences in preference for opposite‐sex altruism according to recipient because the reasons for altruistic behaviour differ according to the relationship between actor and recipient. We employed the Self‐Report Altruism Scale Distinguished by the Recipient, which was newly developed to evaluate altruism among Japanese undergraduates. We asked participants to evaluate preferences for each item based on the recipient of the altruistic behaviour (family members, friends or acquaintances, and strangers). Preference for opposite‐sex altruism differed according to recipient, gender of the participant, and relationship type, and several significant interactions were observed among these factors. We suggest that whereas women use a potential partner's altruism towards strangers as a costly signal of their resource‐holding potential when choosing a mate, they consider altruism towards family when they are in a long‐term relationship to ensure that resources are not allocated to non‐relatives.     

Altruism and selfishness

Many situations in human life present choices between (a) narrowly preferred particular alternatives and (b) narrowly less preferred (or aversive) particular alternatives that nevertheless form part of highly preferred abstract behavioral patterns. Such alternatives characterize problems of self-control. For example, at any given moment, a person may accept alcoholic drinks yet also prefer being sober to being drunk over the next few days. Other situations present choices between (a) alternatives beneficial to an individual and (b) alternatives that are less beneficial (or harmful) to the individual that would nevertheless be beneficial if chosen by many individuals. Such alternatives characterize problems of social cooperation; choices of the latter alternative are generally considered to be altruistic. Altruism, like self-control, is a valuable temporally-extended pattern of behavior. Like self-control, altruism may be learned and maintained over an individual's lifetime. It needs no special inherited mechanism. Individual acts of altruism, each of which may be of no benefit (or of possible harm) to the actor, may nevertheless be beneficial when repeated over time. However, because each selfish decision is individually preferred to each altruistic decision, people can benefit from altruistic behavior only when they are committed to an altruistic pattern of acts and refuse to make decisions on a case-by-case basis.     

The relationship of the family social environment, peer influences, and peer relationships to altruistic orientation in Chinese children

This study investigated the correlation between the family social environment, peer influences, and peer relationships to altruistic orientation in Chinese children. Results in the present study showed that (a) altruistic orientation measured by the Child Altruism Inventory (H. K. Ma & M. C. Leung, 1991) was directly associated with a positive family social environment, (b) altruistic orientation was directly associated with positive peer influences and was inversely associated with negative peer influences, and (c) altruistic orientation was directly associated with perceived prosocial behavior of one's best friend and inversely associated with perceived antisocial behavior of one's best friend. The findings suggested that a good family social environment, positive peer influences, and good peer relationships tended to increase altruistic orientation.     

The Relationship of the Family Social Environment,Peer Influences,and Peer Relationships to Altruistic Orientation in Chinese Children

This study investigated the correlation between the family social environment, peer influences, and peer relationships to altruistic orientation in Chinese children. Results in the present study showed that (a) altruistic orientation measured by the Child Altruism Inventory (H. K. Ma & M. C. Leung, 1991) was directly associated with a positive family social environment, (b) altruistic orientation was directly associated with positive peer influences and was inversely associated with negative peer influences, and (c) altruistic orientation was directly associated with perceived prosocial behavior of one's best friend and inversely associated with perceived antisocial behavior of one's best friend. The findings suggested that a good family social environment, positive peer influences, and good peer relationships tended to increase altruistic orientation.     

ALTRUISM: TOWARD A PSYCHOBIOSPIRITUAL CONCEPTUALIZATION

Altruism, defined here as a regard for or devotion to the interest of others with whom we are interrelated, is pitted against two other dispositions in human beings: nepotism and egoism. We propose that to become fully human is to become more altruistic. We describe how altruism is mediated by our physiology, is expressed in our psychological development, is evolving in our social institutions, and becomes the moral communities that enforce our sense of right and wrong. A change in any one of these influences changes our disposition—changes who we are and what we do—potentially making altruism more possible in the world.     

Digging deeper: A response to commentaries on The roots of human altruism

The current response discusses the insightful commentaries by Dale Hay (2009) and Karen Wynn (2009) on the proposal that human altruism has deep roots both in phylogeny and ontogeny ( Warneken & Tomasello, 2009 ). In particular, I focus on (a) what observational and experimental methods can reveal about altruistic motivations in children, (b) Wynn's idea that early altruism might confer a selective advantage to the infants themselves, and (c) how recent findings on young children's social ontology will enable us to test the hypothesis that ontogeny proceeds from rather global to more differentiated altruistic behaviours.     

Altruistic or selfish? Responses when safety is threatened depend on childhood socioeconomic status

Altruism is an effective method of coping with threats. This research explored the relationship between childhood socioeconomic status (SES) and altruism under different situations. The results of five studies provided reliable evidence that safety-threat conditions moderated the relationship between childhood SES and altruism. Individuals with higher childhood SES exhibited higher altruistic intentions (Studies 1 and 2) and behaviors (Study 3) when they were manipulated to imagine a safety threat scenario (Study 1), when viewing pictures of disasters (Study 2), and when they were manipulated to believe that their health was under threat (Study 3). However, their childhood SES had no significant impact on their altruistic intentions and behaviors in relatively safe environments (Studies 1–3). This effect was again tested in more realistic environmental conditions using a large-scale survey in Study 4. In Study 5, we explored the underlying mechanism behind the earlier findings (i.e., temporal discounting).     

Automatic activation of individual differences: A test of the gatekeeper model in the domain of spontaneous helping

The influence of stable individual differences on behaviour need not solely rely upon deliberative processes but can also be exerted through automatic associative processes. In this contribution, three studies that illustrate the role of individual differences in automaticity are presented in the domain of helping behaviour. The first study provides evidence both for a double dissociation and for an additive pattern of implicit and explicit measures in predicting relevant altruistic behaviours. The subsequent two studies show that when the concept of altruism is subliminally primed, individual differences in implicit attitudes significantly predict behaviour. The results are in line with the gatekeeper model, and their implications are discussed focusing on the key role of individual differences in modulating automaticity effects. Copyright © 2011 John Wiley & Sons, Ltd.     

The influence of transformational leadership on organisational citizenship behaviour in a South African combat military unit

This study investigated perceived individual transformational leadership (TL) to influence behaviours on follower organisational citizenship behaviour (OCB) in a South African combat military unit. A sample of 300 of 567 military followers (males = 78%; black Africans = 82%) completed a survey on their perceptions of transformational leadership qualities among their leaders who were trained in TL: Idealised influence, Inspirational motivation, Intellectual stimulation and Individualised consideration. The military followers also self-reported on their own OCB: Altruism, Civic virtue, Courtesy, Sportsmanship and Conscientiousness. Data were analysed utilising regression analysis to predict military followers’ self-reported OCB from perceived TL behaviours. Findings indicated that only Individualised consideration could significantly predict the OCB dimensions of Altruism, Civic virtue, Sportsmanship and Conscientiousness, but not Courtesy.     

Altruism in social networks: Evidence for a ‘kinship premium’

Why and under what conditions are individuals altruistic to family and friends in their social networks? Evolutionary psychology suggests that such behaviour is primarily the product of adaptations for kin‐ and reciprocal altruism, dependent on the degree of genetic relatedness and exchange of benefits, respectively. For this reason, individuals are expected to be more altruistic to family members than to friends: whereas family members can be the recipients of kin and reciprocal altruism, friends can be the recipients of reciprocal altruism only. However, there is a question about how the effect of kinship is implemented at the proximate psychological level. One possibility is that kinship contributes to some general measure of relationship quality (such as ‘emotional closeness’), which in turn explains altruism. Another possibility is that the effect of kinship is independent of relationship quality. The present study tests between these two possibilities. Participants (N= 111) completed a self‐report questionnaire about their willingness to be altruistic, and their emotional closeness, to 12 family members and friends at different positions in their extended social networks. As expected, altruism was greater for family than friends, and greater for more central layers of the network. Crucially, the results showed that kinship made a significant unique contribution to altruism, even when controlling for the effects of emotional closeness. Thus, participants were more altruistic towards kin than would be expected if altruism was dependent on emotional closeness alone – a phenomenon we label a ‘kinship premium’. These results have implications for the ongoing debate about the extent to which kin relations and friendships are distinct kinds of social relationships, and how to measure the ‘strength of ties’ in social networks.     

Helping Others Shows Differential Benefits on Health and Well-being for Male and Female Teens

Objectives Adults who engage in altruistic social interest behaviors experience better mental health and have lower mortality rates than non-altruistic adults. The present study investigated the relationship between altruism and health and well-being in teens, and demographic and lifestyle variables. Methods A cross-sectional survey was implemented with a national sample of teens recruited through the Presbyterian Church (U.S.A.). Measures included the PedsQL, the Ryff Psychological Well-Being Scale, and a new self-report scale of Altruism (subscales: Receiving/ Providing Emotional Support, Family Helping Behavior, General Helping Behavior, and Helping Orientation). Results Data were collected from 457 teens (M age = 15.6, sd 1.2). Psychometric analyses revealed that a five-factor model fit the altruism data well. Multivariate regression revealed no association between providing emotional support and psychosocial health. There were, however, many associations between altruism and well-being, and differential associations by gender. Family helping was the most salient aspect of altruism for males, showing associations with positive social relations, purpose in life, and self-acceptance. For females, General Helping Behavior was associated with positive social relations, and Helping Orientation was associated with better purpose in life. Family Helping was associated with better physical health in females, but not for males. The only correlates of altruism were higher age, more physical activity, and engaging in positive religious coping. Conclusions Altruism is positively associated with health for females and with well-being for both males and females. Different gender-specific interventions to guide teens in doing more altruistic activities may have to be designed to capitalize on these different associations.

Physical Attractiveness and Altruism in Two Modified Dictator Games

Several studies find that male individuals are more altruistic toward attractive women, suggesting altruism may serve as a courtship display. Many studies exploring this phenomenon have used vignettes and facial images. We tested the sexual selection hypothesis as an explanation for altruistic behavior, where players played the dictator game with “live” participants. Two studies were conducted (Study 1, n = 212; Study 2, n = 188) where we manipulated stakes and anonymity between participants to explore the relationship between the dictator’s allocations and their perceived attractiveness of the recipient. We found no relationship between attractiveness and altruism. Dictators were consistently fair when allocating stakes, irrespective of the recipients’ attractiveness.     

环境损益的社会折扣:利他人格的影响

他人与自我之间的社会距离越远,则他人的获益或损失带给自我的效用就越小,此现象被称为社会折扣。虽然有一些研究探讨了金钱结果的社会折扣现象,但作为公共品的环境结果的社会折扣规律及其影响因素并未得到应有的研究。本研究以优劣空气天数为例,采用选择滴定程序,在损益两种情境下探索环境结果的社会折扣现象,并考察利他人格对社会折扣的影响。结果发现:(1)相比双曲模型,指数模型在损益两种情境下皆能更佳地拟合环境结果的社会折扣函数;(2)损益情境与社会距离的交互作用影响环境结果的社会折扣程度,损失情境下的社会折扣程度随社会距离的增加而变大的幅度大于收益情境;(3)利他人格在社会距离对社会折扣的影响中起调节作用。相比高利他人格者,低利他人格者的社会折扣受社会距离的影响较大。本研究对理解环境结果社会折扣和环保决策行为具有重要意义。     

Longitudinal relations among perceived parental warmth,self-esteem and social behaviours from middle childhood to early adolescence in China: Disentangling between- and within-person associations

Although several studies have addressed the relations between perceived parental warmth and social behaviours, few have distinguished their between- and within-person effects or explored their within-person mediating mechanisms. This study examined the transactional relations among perceived parental warmth (i.e. maternal warmth and paternal warmth), children's self-esteem and children's positive/negative social behaviours (i.e. prosocial behaviour and delinquent behaviour) along with the mediating role of self-esteem after disentangling between- and within-person effects. A total of 4315 Chinese elementary children (44.9% girls; M_age = 9.93 years, SD = 0.73) completed relevant measures on four occasions employing 6-month intervals. Results of random-intercept cross-lagged panel models showed that (a) perceived parental warmth reciprocally and positively predicted prosocial behaviour and self-esteem; (b) perceived paternal warmth reciprocally and negatively predicted delinquent behaviour; (c) self-esteem reciprocally predicted prosocial and delinquent behaviour; (d) perceived maternal warmth reciprocally and positively predicted prosocial behaviour through self-esteem; (e) perceived parental warmth reciprocally and negatively predicted delinquent behaviour through self-esteem; and (f) perceived maternal and paternal warmth differed in their relations with prosocial and delinquent behaviours through self-esteem. These findings illuminated the complicated longitudinal within-person interactions among perceived parental warmth, self-esteem, and social behaviours, the specific mediating mechanism of self-esteem, and the differing results associated with perceived maternal and paternal warmth, all of which yield significant implications for assessments and early interventions aimed to promote positive social behaviour.     

Altruistic behavior as a costly signal of general intelligence

Unconditional altruism is an enduring puzzle for evolutionary approaches to social behavior. In this paper, we argue that costly signaling theory, a well-established framework in biology and economics, may be useful to shed light on the individual differences in human unconditional altruism. Based on costly signaling theory, we propose and show that unconditional altruistic behavior is related to general intelligence. The cost incurred by engaging in unconditional altruism is lower for highly intelligent people than for less intelligent people because they may expect to regain the drained resources. As a result, unconditional altruism can serve as an honest signal of intelligence. Our findings imply that distinguishing altruistic behavior from cooperative behavior in social psychological and economic theories of human behavior might be useful and that costly signaling theory may provide novel insights on various individual difference variables.     

利他仅仅利他吗?——进化视角的双路径模型

利他对受助者及社会有弥足珍贵的价值,能提高群体的功能性,增加危机中的生存概率从而保持种群延续;但利他会降低助人者自身的适应性,使其生存与繁殖的可能性较其他个体,尤其是自利者,处于不利地位。利他行为是如何得到进化的这一难题吸引了各领域学者的关注。本文回顾了具有代表性的多水平选择理论与竞争性利他理论,结合利他研究的最新实证证据,提出利他增加助人者适应性的双路径模型。内部路径指利他行为可以通过自激励的内在过程,促进助人者身心的正性互动,带来内部效用增益,从而在某些时刻提高其适应性。外部路径为利他传递展现助人者品质的信号,有助于提升其群体内地位并增加合作、择偶机会。进而,利他行为能够在个体与群体层面的进化选择中得到保存。未来研究可以从身心关系的角度继续探讨利他问题,促成利他的正性循环。     

现实利他行为与网络利他行为对大学生主观幸福感的影响：多重中介模型

为探讨现实利他行为与网络利他行为对主观幸福感的影响,并着力考察现实社会支持、网络社会支持与自尊在其中所起的作用,以1064名在读大学生为被试进行问卷调查,研究结果显示：（1）现实利他行为和网络利他行为均能在一定程度上预测主观幸福感。（2）现实、网络社会支持和自尊是现实和网络利他行为对主观幸福感产生影响的两条并行中介路径。（3）现实和网络利他行为与现实和网络社会支持之间存在交互作用。     

In conversation with J. Philippe Rushton

The interview covers Rushton’s background in England, South Africa, and Canada, his education at the University of London (B.Sc., 1970; Ph.D., 1973), and his early research (1970–1980) on the social learning of generosity in 7- to 11-year olds. In his first book, Altruism, socialization, and society (1980), Rushton solved two “anomalies” for his social learning perspective—altruism in animals and traits in people—causing a “paradigm shift” for him toward sociobiology. He spent January to June 1981 at the University of California, Berkeley, to study the longitudinal stability of personality traits like altruism. There, he was influenced by Jensen’s work on g and race differences in rate of maturation and two-egg twinning. Subsequently, Rushton found that across 60 variables, Europeans fall between East Asians and Africans, closer to East Asians. He extrapolated Wilson’s (fast–slow) r-K life history theory to explain the pattern. Also covered is Rushton’s research on the heritability of altruism, and Genetic Similarity Theory explaining assortative mating and ethnic nepotism. Spouses and best friends are as similar as half-siblings and people randomly chosen from the same ethnic group are as related as first cousins. Altruism follows lines of similarity to replicate genes effectively. Rushton’s research on creativity is described.     

Kinship and altruism: A cross‐cultural experimental study

Humans are characterized by an unusual level of prosociality. Despite this, considerable indirect evidence suggests that biological kinship plays an important role in altruistic behaviour. All previous reports of the influence of kin selection on human altruism have, however, used correlational (rather than experimental) designs, or imposed only a hypothetical or negligible time cost on participants. Since these research designs fail either to control for confounding variables or to meet the criteria required as a test of Hamilton's rule for kin selection (that the altruist pays a true cost), they fail to establish unequivocally whether kin selection plays a role. We show that individuals from two different cultures behave in accordance with Hamilton's rule by acting more altruistically (imposing a higher physical cost upon themselves) towards more closely related individuals. Three possible sources of confound were ruled out: generational effects, sexual attraction and reciprocity. Performance on the task however did not exhibit a perfect linear relationship with relatedness, which might reflect either the intrusion of other variables (e.g. cultural differences in the way kinship is costed) or that our behavioural measure is insufficiently sensitive to fine‐tuned differences in the way individuals view their social world. These findings provide the first unequivocal experimental evidence that kinship plays a role in moderating altruistic behaviour. Kinship thus represents a baseline against which individuals pitch other criteria (including reciprocity, prosociality, obligation and a moral sense) when deciding how to behave towards others.