“…The importance and pervasiveness of this need to belong has been shown by research demonstrating that a lack of positive social relationships has detrimental effects on the physical, cognitive and behavioral level (Baumeister & Leary, 1995;Reis, Collins, & Berscheid, 2000). For example, not feeling accepted by others influences well-being negatively, reinforces selective memory for socially relevant information and undermines intrinsic motivation (e.g., Berscheid & Reis, 1998;Gardner, Gabriel, & Diekman, 2000;Gardner, Pickett, & Brewer, 2000), whereas fulfilling the need to belong positively influences cooperative behavior within groups (De Cremer & Leonardelli, 2003).…”