Ruth Rebecca Tietjen
NIAS Fellow
Project title
Affective Radicalization: A Conceptual Analysis
Research question
What is affective radicalization?
Project description
Radicalization – the process by which individuals come to adopt extreme political attitudes and behaviours – poses a serious challenge to contemporary democratic societies. Emotions and feelings play a central but underexplored role in this process. The misogynistic incel (involuntary celibates) movement transforms loneliness into hatred of women; radical-right parties channel social discontent into xenophobia; religious extremists turn moderate belief into fanatical devotion.
In this project, Ruth Rebecca Tietjen introduces the concept of “affective radicalization” to capture this emotional dimension, complementing existing research on cognitive and behavioural radicalization. Drawing on interdisciplinary work in psychology and philosophy, she employs conceptual analysis to develop the first systematic account of affective radicalization. By carefully examining the normative assumptions embedded in the concept, she lays the groundwork for a more reflective use of it as a tool of analysis and critique.
Selected publications
- Szanto, Thomas/Tietjen, Ruth Rebecca (2025), The Appropriateness of Political Emotions, Ergo 12: 45. https://doi.org/10.3998/ergo.7968
- Tietjen, Ruth Rebecca (2023), Fear, Fanaticism, and Fragile Identities. The Journal of Ethics 27, 211–230. https://doi.org/10.1007/s10892-023-09418-9
- Tietjen, Ruth Rebecca/Tirkkonen, Sanna Karolina (2023), The Rage of Lonely Men: Loneliness and Misogyny in the Online Movement of “Involuntary Celibates” (Incels). Topoi 42, 1229–1241. https://doi.org/10.1007/s11245-023-09921-6