The medial frontal cortex and adjacent orbitofrontal cortex have been the focus of
investigations of decision-making, behavioral flexibility, and social behavior. We review …

The many facets of the oxytocin (OXT) system of the brain and periphery elicited nearly
25,000 publications since 1930 (see, as listed in PubMed), which revealed central roles for …

Social relationships promote health and wellbeing. Brain regions regulating social behavior
continue to develop throughout adolescence, as teens learn to navigate their social …

BACKGROUND The social environment shapes human health, producing strong
relationships between social factors, disease risk, and survival. The strength of these links …

Individuals occupying dominant and subordinate positions in social hierarchies exhibit
divergent behaviours, physiology and neural functioning. Dominant animals express higher …

During the latter half of the last century, evidence of reproductive competition between males
and male selection by females led to the development of a stereotypical view of sex …

It has been suggested that variation in brain structure correlates with the sizes of individuals'
social networks. Whether variation in social network size causes variation in brain structure …

Convergent evidence from many species reveals the evolutionary origins of human
friendship. In horses, elephants, hyenas, dolphins, monkeys, and chimpanzees, some …

In humans and obligatory social animals, individuals with weak social ties experience
negative health and fitness consequences. The social buffering hypothesis conceptualizes …

Common vampire bats often regurgitate food to roost-mates that fail to feed. The original
explanation for this costly helping behaviour invoked both direct and indirect fitness benefits …