Being excluded and ignored has been shown to threaten fundamental human needs and cause pain. Such reflexive reactions to social exclusion have been conceptualized as direct and unmoderated (temporal need threat model, Williams, 2009). Here we propose an extension and argue that reflexive reactions depend on how social exclusion situations are construed. If being excluded is understood as a vio...

In this paper, we argue that most current social information ltering approaches may bene t from more seriously taking into account the peculiarities of human cognition and human social behavior since current approaches only consider de-contextualized ratings. Social ltering systems exploit ratings provided by users in order to compute recommendations for other users. Typically, these ratings ar...

When categorized into social groups, people view members of in-groups, but not members of out-groups, as being similar to themselves. In three experiments, social categorization moderated the spread of social projection in both minimal and value-tagged laboratory groups and regardless of whether individual perceivers judged both groups or only one. The categorization effect tracked changes in t...

A higher number of socially anxious users were found as more joined social network sites. Since commerce has become an important issue, this study investigated the effect anxiety on online users’ intention. Online interactions are hypothesized to influence intention directly or indirectly through support. 427 effective samples collected from Facebook users, and results confirmed most causal eff...

Does access to money predict social behavior? Past work has shown that money fosters self-sufficiency and reduces interest in others. Building on this work, we tested whether income predicts the frequency and type of social interactions. Two studies using large, nationally representative samples of Americans (N 1⁄4 118,026) and different measures of social contact showed that higher household i...

Since the identification of the human immunodeficiency virus (HIV), most research efforts and publications have focused on the medical aspects of AIDS. Unfortunately, much of the earlier work on the social effect of HIV infection has been overshadowed by sophisticated technology. This book, a collection of papers from the November 1988 United Kingdom Conference on the Social Aspects of AIDS, is...