Animals are home to diverse bacterial communities that can affect their hosts’ physiology, metabolism, and susceptibility to disease. Here we highlight recent research that reveals surprising and important connections between an individual’s microbiome and its social behavior. We focus on two recent discoveries: (i) that social interactions can affect the taxonomic and genic composition of anim...

About 15% of Caucasian children in the second year of life are consistently shy and emotionally subdued in unfamiliar situations, whereas another 15% are consistently sociable and affectively spontaneous. A majority of the children in these two groups retain these profiles through their eighth year. In addition, the two groups differ in physiological qualities that imply differential thresholds...

Despite a general consensus that oxytocin (OT) has prosocial effects, there is no clear agreement on how these effects are achieved. Human research on OT is reviewed under three broad research initiatives: attachment and trust, social memory, and fear reduction. As an organizing perspective for scholars' current knowledge, a tentative model of the causes and effects of alterations in OT level i...

For several years the study of social behavior has been undergoing a revolution with far-reaching consequences for the social and biological sciences. Partly responsible are three recent changes in the attitudes of evolutionary biologists. First was grow­ ing acceptance of the evidence that the potency of natural selection is overwhelm­ ingly concentrated at levels no higher than that of the in...

Neuroscientists are beginning to advance explanations of social behavior in terms of underlying brain mechanisms. Two distinct networks of brain regions have come to the fore. The first involves brain regions that are concerned with learning about reward and reinforcement. These same reward-related brain areas also mediate preferences that are social in nature even when no direct reward is expe...

Copyright ©2016 Trimble JE. This is an open access article distributed under the Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Volume 1 : Issue 1 Article Ref. #: 1000SBRPOJ1106 Investigating the Framing Effect in Social and Behavioral Science Research...

Human beings are an incredibly social species and along with eusocial insects engage in the largest cooperative living groups in the planet's history. Twin and family studies suggest that uniquely human characteristics such as empathy, altruism, sense of equity, love, trust, music, economic behavior, and even politics are partially hardwired. The leap from twin studies to identifying specific g...

A neuroethological approach to human and nonhuman primate behavior and cognition predicts biological specializations for social life. Evidence reviewed here indicates that ancestral mechanisms are often duplicated, repurposed, and differentially regulated to support social behavior. Focusing on recent research from nonhuman primates, we describe how the primate brain might implement social func...

The purpose of this study is to investigate whether the dose of synthetic hormones in hormonal contraceptives (HCs) is related to between-subject variation in personality. HC users reported the brand of their HC and completed the Big Five Inventory (BFI). Each woman’s dose of synthetic hormones was calculated and a median split assigned women to the high or low synthetic estrogen group and the ...