Grooming is one of the most conspicuous social interactions among nonhuman primates. The selection of grooming partners can provide important clues about factors relevant for the distribution of grooming within a social group. We analyzed grooming behavior among 17 semi-free ranging female Barbary macaques (Macaca sylvanus). We tested whether grooming is related to kinship, rank and friendship....

Research with humans and non-human primate species has found an association between social rank and individual health. Among humans, a robust literature in industrial societies has shown that each step down the rank hierarchy is associated with increased morbidity and mortality. Here, we present supportive evidence for the social gradient in health drawing on data from 289 men (18+ years of age...

In this paper, we investigate whether the social roles of dialogue participants can be recognized through the social actions performed by the participant in their interactions with others in the group. Specifically we focus on determining if a participant is the leader of the group. We decompose the problem into identifying the social goals for participant discourse segments. These social goals...

Social animals live in complex physical and social environments requiring them to attend and rapidly respond to social and environmental information by changing their behavior. A key social influence is rank or status, a ubiquitous element in animal societies. Rank typically regulates access to reproduction and other resources, among other consequences for individuals. Because reproduction is a...

J. T. Cheng et al. (eds.), The Psychology of Social Status, DOI 10.1007/978-1-4939-0867-7_10, © Springer Science+Business Media New York 2014 C. M. Steckler () · J. L. Tracy Department of Psychology, University of British Columbia, Vancouver, Canada e-mail: [email protected] Emotions are critically important for navigating the social hierarchy. Emotions motivate people to seek and re...

Fix a prime p. Given a finite group G, let H(G) denote its mod p cohomology. In the early 1990’s, Henn, Lannes, and Schwartz introduced two invariants d0(G) and d1(G) of H∗(G) viewed as a module over the mod p– Steenrod algebra. They showed that, in a precise sense, H∗(G) is respectively detected and determined by H(CG(V )) for d ≤ d0(G) and d ≤ d1(G), with V running through the elementary abel...

Like many other herbivores, in a natural environment equids feed on rather evenly distributed resources. However, the vegetation in their vast habitats constantly changes. If food is plentiful only little competition occurs over food, and in non-competitive situations domestic horses tend to return to the same feeding site until it is overgrazed. In contrast, they compete over limited food for ...

Every human society includes social hierarchies— relationships between individuals and groups of unequal rank or status. Recent research has shown that even preverbal infants represent hierarchical relationships, expecting larger agents and agents from larger groups to win dominance contests. However, to successfully navigate social hierarchies, infants must also integrate information about soc...

Mistrust of others may build upon perceptions of the self as vulnerable, consistent with an association of paranoia with perceived lower social rank. Height is a marker of social status and authority. Therefore we tested the effect of manipulating height, as a proxy for social rank, on paranoia. Height was manipulated within an immersive virtual reality simulation. Sixty females who reported pa...