The authors outline a psychological model of extremism and analyze violent extremism as a special case of it. Their significance quest theory identifies 3 general drivers of violent extremism: need, narrative, and network. The theory asserts that the need for personal significance-the desire to matter, to "be someone," and to have meaning in one's life-is the dominant need that underlies violent extremism. A violence-justifying ideological narrative contributes to radicalization by delineating a collective cause that can earn an individual the significance and meaning he or she desires, as well as an appropriate means with which to pursue that cause. Lastly, a network of people who subscribe to that narrative leads individuals to perceive the violence-justifying narrative as cognitively accessible and morally acceptable. The authors describe empirical evidence for the theory, which was tested on a wide variety of samples across different cultures and geopolitical contexts. They go on to offer a general road map to guide efforts to counter and prevent violent extremism in its various forms.

Even though the motivation to feel worthy, to be respected, and to matter to others has been identified for centuries by scholars, the antecedents, consequences, and conditions of its activation have not been systematically analyzed or integrated. The purpose of this article is to offer such an integration. We feature a motivational construct, the quest for significance, defined as the need to have social worth. This need is typically fulfilled by a sense of measuring up to the values one shares with significant others. Our significance-quest theory (SQT) assumes that the need for significance is universal, whereas the means of satisfying it depend on the sociocultural context in which one’s values are embedded. Those means are identified in a narrative supported and validated by one’s network, or reference group. The quest for significance is activated by significance loss and/or the opportunity for significance gain. It motivates behavior that aims to affirm, realize, and/or show commitment to an important value. The SQT is consistent with large bodies of prior research and supported by novel studies in multiple laboratory and field settings. It transcends prior understandings and offers guidance for further study of this essential human motivation.

Previous studies suggested that public trust in government is vital for implementations of social policies that rely on public's behavioural responses. This study examined associations of trust in government regarding COVID-19 control with recommended health behaviours and prosocial behaviours. Data from an international survey with representative samples (N=23,733) of 23 countries were analysed. Specification curve analysis showed that higher trust in government was significantly associated with higher adoption of health and prosocial behaviours in all reasonable specifications of multilevel linear models (median standardised β=0.173 and 0.244, P<0.001). We further used structural equation modelling to explore potential determinants of trust in government regarding pandemic control. Governments perceived as well organised, disseminating clear messages and knowledge on COVID-19, and perceived fairness were positively associated with trust in government (standardised β=0.358, 0.230, 0.055, and 0.250, P<0.01). These results highlighted the importance of trust in government in the control of COVID-19.

The public justification for nature conservation currently rests on two pillars: hedonic (instrumental) values, and moral values. Yet, these representations appear to do little motivational work in practice; biodiversity continues to decline, and biodiversity policies face a wide implementation gap. In seven EU countries, we studied why people act for nature beyond professional obligations. We explore the motivations of 105 committed actors for nature in detail using life-history interviews, and trace these back to their childhood. Results show that the key concept for understanding committed action for nature is meaningfulness. People act for nature because nature is meaningful to them, connected to a life that makes sense and a difference in the world. These eudemonic values (expressing the meaningful life) constitute a crucial third pillar in the justification of nature conservation. Important policy implications are explored, e.g. with respect to public discourse and the encounter with nature in childhood.