ideology
Definition
Ideology refers to a system of interconnected beliefs and values that orients behavior by addressing central issues of human life, possessing sufficient generality to function as a world view, and carrying explanatory ambition about social or political reality. Within terrorism research, ideology has long been treated as the defining feature of violent extremism, with U.S. government categories from the FBI and DHS anchoring each threat type to the furtherance of an ideological agenda. That assumption is now under pressure from lone-actor cases in which perpetrators display no coherent or consistent belief system, a problem that has generated at least nineteen competing terms in the literature to describe mixed, unclear, or unstable ideological profiles. One proposed replacement breaks the explanatory work of ideology into three dimensions: diagnostic framing of grievance, prognostic framing of a violent solution, and motivational framing of who should act. Separately, survey data from UK and Greek adolescents show that future anxiety is associated with right-conservative ideological self-classification among young men specifically, suggesting that ideology as a measurable self-placement variable responds to emotional and situational pressures independently of any coherent doctrinal content.
Sources: Horgan & Shayler (2026), McCauley (2026), Borghi et al. (2025)
Related Terms
- salad bar extremism (4 shared articles)
- terrorism (3 shared articles)
- salad bar (2 shared articles)
- extremism (2 shared articles)
- violence (2 shared articles)
- violent extremism (2 shared articles)
- group conflict (1 shared article)
- adolescence (1 shared article)
- nihilistic violent extremism (1 shared article)
- mobilization frame (1 shared article)
- fixation (1 shared article)
- political violence (1 shared article)
- manifestos (1 shared article)
- far-right extremism (1 shared article)
- political attitudes (1 shared article)
- future anxiety (1 shared article)
- emotion regulation (1 shared article)
Applications
Ideology and Political Violence
Political violence research has historically assumed that ideology supplies the collective framework that defines enemies, selects targets, legitimizes tactics, and gives personal grievances political meaning. Target selection evidence supports this view: attackers who choose a synagogue, a Black church, or a predominantly Hispanic border city are not distributing violence randomly, and migration between ideological frameworks indicates searching rather than absence of governing belief. Yet a growing share of lone-actor mass-casualty events, predominantly committed by young men, cannot be connected to any single ideology, which challenges the foundational definition of terrorism as ideologically motivated violence and forces the question of whether ideology is a necessary condition for the category at all.
Sources: Perliger (2026), McCauley (2026)
Ideology and Radicalization
The relationship between ideology and individual radicalization is neither direct nor uniform. Individuals join militant organizations for status, belonging, thrill-seeking, or escape, and may only later absorb a group's official doctrinal content, meaning ideology functions more as a collective legitimating framework than as a private psychological engine. Data from a Toronto intervention program classified fewer than five percent of clients as presenting with mixed or unclear ideology, whereas a majority of UK Channel referrals received that label, a disparity that reflects differences in practitioner training and classification practices rather than genuine variation in the underlying population of cases.
Sources: Horgan & Shayler (2026), Perliger (2026)
Ideology and Future Anxiety
Future anxiety, defined as feelings of pessimism and uncertainty about what lies ahead, is associated with ideological self-placement among young people, though the association is gender-specific. In both UK and Greek adolescent samples, only young men showed a significant positive association between future anxiety and right-conservative ideological self-classification, with standardized coefficients of approximately .17 in each country. Cognitive reappraisal moderated the broader relationship between future anxiety and political attitudes, attenuating associations with both authoritarian and democratic principles, which indicates that emotion regulation capacity shapes how anxiety translates into ideological outcomes.
Sources: Borghi et al. (2025)
