Economic experiments have suggested that cooperative humans will altruistically match local levels of cooperation (conditional cooperation) and pay to punish non-cooperators (altruistic punishment).

A recent study published in Evolutionary Psychological Science examined whether sexual orientation influences the desirability of altruism in a potential romantic partner. The researchers found that ...

Image captured with functional MRI shows the location in the brain's ventromedial prefrontal cortex (VMPFC) where an increase in neural altruism occurred for a group of women who wrote about gratitude ...