RESEARCH
Altruism, Happiness, and Health: It's Good to Be Good
Stephen G Post
Altruistic (other-regarding) emotions and behaviors are associated with greater well-being, health, and longevity. This article presents a summary and assessment of existing research data on altruism and its relation to mental and physical health. It suggests several complimentary interpretive frameworks, including evolutionary biology, physiological models, and positive psychology. Potential public health implications of this research are discussed, as well as directions for future studies. The article concludes, with some caveats, that a strong correlation exists between the well-being, happiness, health, and longevity of people who are emotionally and behaviorally compassionate, so long as they are not overwhelmed by helping tasks.
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International Journal of Behavioral Medicine, 12, 66-77 (2005)
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Giving Leads to Happiness in Young Children
Lara B Aknin, J Kiley Hamlin, Elizabeth W Dunn
Evolutionary models of cooperation require proximate mechanisms that sustain prosociality despite inherent costs to individuals. The "warm glow" that often follows prosocial acts could provide one such mechanism; if so, these emotional benefits may be observable very early in development. Consistent with this hypothesis, the present study finds that before the age of two, toddlers exhibit greater happiness when giving treats to others than receiving treats themselves. Further, children are happier after engaging in costly giving--forfeiting their own resources--than when giving the same treat at no cost. By documenting the emotionally rewarding properties of costly prosocial behavior among toddlers, this research provides initial support for the claim that experiencing positive emotions when giving to others is a proximate mechanism for human cooperation.
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PLOS One, 7, (2012)
A Comparative fMRI Meta-Analysis of Altruistic and Strategic Decisions to Give
Jo Cutler, Daniel Campbell-Meiklejohn
The decision to share resources is fundamental for cohesive societies. Humans can be motivated to give for many reasons. Some generosity incurs a definite cost, with no extrinsic reward to the act, but instead provides intrinsic satisfaction (labelled here as 'altruistic' giving). Other giving behaviours are done with the prospect of improving one's own situation via reciprocity, reputation, or public good (labelled here as 'strategic' giving). These contexts differ in the source, certainty, and timing of rewards as well as the inferences made about others' mental states. We executed a combined statistical map and coordinate-based fMRI meta-analysis of decisions to give (36 studies, 1150 participants). Methods included a novel approach for accommodating variable signal dropout between studies in meta-analysis. Results reveal consistent, cross-paradigm neural correlates of each decision type, commonalities, and informative differences. Relative to being selfish, altruistic and strategic giving activate overlapping reward networks. However, strategic decisions showed greater activity in striatal regions than altruistic choices. Altruistic giving, more than strategic, activated subgenual anterior cingulate cortex (sgACC). Ventromedial prefrontal cortex (vmPFC) is consistently involved during generous decisions and processing across a posterior to anterior axis differentiates the altruistic/strategic context. Posterior vmPFC was preferentially recruited during altruistic decisions. Regions of the 'social brain' showed distinct patterns of activity between choice types, reflecting the different use of theory of mind in the two contexts. We provide the consistent neural correlates of decisions to give, and show that many will depend on the source of incentives.
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Neuroimage, 184, 227-241 (2019)
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Human Altruism: Economic, Neural, and Evolutionary Perspectives
Ernst Fehr, Bettina Rockenbach
Human cooperation represents a spectacular outlier in the animal world. Unlike other creatures, humans frequently cooperate with genetically unrelated strangers, often in large groups, with people they will never meet again, and when reputation gains are small or absent. Experimental evidence and evolutionary models suggest that strong reciprocity, the behavioral propensity for altruistic punishment and altruistic rewarding, is of key importance for human cooperation. Here, we review both evidence documenting altruistic punishment and altruistic cooperation and recent brain imaging studies that combine the powerful tools of behavioral game theory with neuroimaging techniques. These studies show that mutual cooperation and the punishment of defectors activate reward related neural circuits, suggesting that evolution has endowed humans with proximate mechanisms that render altruistic behavior psychologically rewarding.
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Current Opinion in Neurobiology, 14, 784-90 (2004)