Identity Fusion

Identity fusion is a visceral sense of oneness with a group and its individual members that motivates personally costly, pro-group behaviors. Past approaches, most notably social identity theory, have assumed that when people align with groups, the group category eclipses both the personal self and the relationships among individual group members. Also, social identity researchers have focused on intergroup processes. In contrast, fusion theory emphasizes the role of the personal self and intragroup relationships in extreme pro-group action. Strongly fused persons are especially inclined to endorse pro-group action when either the personal or the social self is salient, when physiological arousal is high, or when they perceive that group members share essential qualities (e.g., genes, core values) with one another. Moreover, feelings of personal agency, perceptions of family-like ties to other group members, and a sense of group-related invulnerability mediate the link between identity fusion and pro-group behaviors. All of these effects emerged while controlling for identification, which predicted the effects weakly if at all. By specifying some of the key antecedents of extreme pro-group behavior as well as the role of the personal self and familial ties in such behavior, the identity-fusion approach fills an important explanatory gap left largely unaddressed by earlier perspectives.