Prosocial behavior
Prosocial behavior refers to voluntary actions intended to benefit others or society as a whole, such as helping, sharing resources, cooperating, and donating, often without immediate external rewards.[1][2] These behaviors are observed across human cultures and even in non-human animals, emerging early in childhood development and influenced by both genetic and environmental factors.[3] From an evolutionary perspective, prosocial tendencies likely arose through mechanisms like kin selection, where individuals aid relatives to promote shared genetic fitness, and reciprocal altruism, fostering cooperation among unrelated parties via expected future returns.[4][5] Key psychological research distinguishes prosocial behavior from pure altruism, noting that while some acts may stem from egoistic motives like alleviating personal distress or gaining social approval, others appear driven by empathic concern for the recipient's welfare.[6] The empathy-altruism hypothesis, advanced by Batson, posits that high empathy leads to helping motivated ultimately by the other's need rather than self-benefit, supported by experiments manipulating escape options from observed suffering.[7][8] However, this view faces empirical challenges, with critics arguing that subtle self-interested gains, such as mood enhancement or reputational benefits, often underlie seemingly altruistic acts, aligning with evolutionary predictions of ultimate self-interest in gene propagation.[9] Controversies persist in assessing true motivational purity, as laboratory paradigms struggle to fully isolate ultimate goals from proximate egoistic rewards, highlighting the interplay between biological imperatives and situational cues in shaping cooperation.[10] Prosocial behavior's prevalence underscores its adaptive value in group living, yet its variability across contexts reveals tensions between individual costs and collective gains.[11]