Endorsement of extreme pro-group behaviors Since the experimental study of actual extreme pro-group acts raises large ethical red flags, researchers have largely focused on endorsements of extreme pro-group acts. Several studies have shown that fusion is a robust predictor of willingness to fight and die on behalf of one's group. Additional
field research with
terrorist groups like
ISIS and
rebel groups is also beginning to shed light on the role identity fusion plays in extreme pro-group behaviors.
Engagement in personally costly, pro-group behaviors In addition to predicting endorsement of extreme pro-group behaviors, research suggests that fusion is a predictor of a variety of personally costly pro-group behaviors in the real world. Additional research has shown that fusion could also be a strong predictor of group-directed helping behaviors. In some studies, individuals donated money to the group. Other research has also suggested that strongly fused individuals are especially willing to go out of their way to protect the group and maintain its integrity. For instance, strongly fused employees were more likely to report having "
blown the whistle" sometime during their employment. Presumably, such whistle-blowing activity was motivated by a conviction that their actions would ultimately benefit the group. Another study found that students who were strongly fused with their university were willing to whistle-blow against a cheating fellow student despite the cost of time, energy, and the possibility of retaliation from the cheater.
Willingness to interact with outgroups More recent research has turned to investigating the positive outcomes of identity fusion. In particular, there has been an emphasis on viewing identity fusion in the context of the
attachment theory concept of a "secure base", which empowers group members to interact more confidently with others. The nature of these interactions (i.e.,
cooperation or violence) is largely determined by whether the outgroup is perceived to be a threat. For instance,
empirical evidence suggests that strongly fused people are more willing to trust members of benign outgroups than weakly fused people. == Local versus extended fusion ==