To successfully establish and maintain social relationships, individuals need to be sensitive to the thoughts and feelings of others. In the current studies, the authors predicted that individuals who are especially concerned with social connectedness--individuals high in the need to belong--would be particularly attentive to and accurate in decoding social cues. In Study 1, individual differences in the need to belong were found to be positively related to accuracy in identifying vocal tone and facial emotion. Study 2 examined attention to vocal tone and accuracy in a more complex social sensitivity task (an empathic accuracy task). Replicating the results of Study 1, need to belong scores predicted both attention to vocal tone and empathic accuracy. Study 3 provided evidence that the enhanced performance shown by those high in the need to belong is specific to social perception skills rather than to cognitive problem solving more generally.

The need to belong has been forwarded as a pervasive human motive, influencing a range of cognitive, emotional, and behavioral responses. The current research explored the influence of belongingness needs on the selective retention of social information. Just as physical hunger results in selective memory for food-relevant stimuli, it was hypothesized that social hunger, aroused when belongingness needs were unmet, would result in selective memory for socially relevant stimuli. In two studies, the authors used a simulated computer chat room to present brief acceptance or rejection experiences to participants. Participants then read a diary containing both social and individual events. In both, rejection experiences resulted in selective memory for the explicitly social events of the diary. The implications of these results for the existence and consequences of a basic need to belong are discussed.

The skill-deficit view of loneliness posits that unskilled social interactions block lonely individuals from social inclusion. The current studies examine loneliness in relation to social attention and perception processes thought to be important for socially skilled behavior. Two studies investigate the association between social monitoring (attention to social information and cues) and self-reported loneliness and number of close social ties. In Study 1, higher levels of loneliness are related to increased rather than decreased incidental social memory. In Study 2, individuals with fewer reported friends show heightened decoding of social cues in faces and voices. Results of these studies suggest that the attentional and perceptual building blocks of socially skilled behavior remain intact, and perhaps enhanced, in lonely individuals. Implications for recent models of belonging regulation and theories of loneliness are discussed.

This research was conducted to explore the impact of assimilation and differentiation needs on content-specific self-stereotyping. According to optimal distinctiveness theory (M. B. Brewer, 1991), social identities serve the function of satisfying individuals' need for assimilation (in-group inclusion) and their need for differentiation (distinctiveness from others). It was proposed that one of the ways optimal social identities are maintained is through self-stereotyping. In 3 studies, the needs for assimilation and differentiation were experimentally manipulated, and support was found for increased self-stereotyping in response to heightened need arousal across both self-report and behavioral measures and across different social groups. Results also demonstrated that only those participants who were highly identified with their in-group were willing to engage in negative self-stereotyping.

At the heart of optimal distinctiveness theory is the idea that a group’s level of inclusiveness is a significant determinant of how well that group can meet members’ needs for assimilation and differentiation. In two studies, this principle was demonstrated by experimentally manipulating both needs and examining their effects on perceptions of ingroup size and on the perceived importance of ingroups that vary in level of inclusiveness. It was predicted that assimilation need would lead to a preference for inclusive ingroups and the tendency to overestimate ingroup size, whereas differentiation need would lead to a preference for exclusive ingroups and the tendency to underestimate ingroup size. Support for these predictions was found across both studies. The results support the hypothesis that the arousal of assimilation and differentiation needs interacts with ingroup inclusiveness to determine optimal social identities.