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A conceptual diagram contrasting two ideology models side by side. The left panel shows scattered, disconnected colored dots against cream and black backgrounds, representing the unstructured "salad bar" mix of beliefs. The right panel shows an organized network of interconnected nodes radiating from a large luminous central sphere, illustrating a structured ideology with a stable sacred core surrounded by linked peripheral operational components.

Sacred-symbolic cores and shifting peripheries: A structural account of ideological change in extremism

By Mirra Noor Milla, Umar H Sulaiman, & Whinda Yustisia

Beyond Bans: Unpacking the Complexities of Social Media Regulation

Deadline: February 28, 2027 (earlier submission is encouraged) Nearly 30 years ago, Robert Kraut and colleagues (1998) proposed…

A conceptual watercolor illustration showing a lone silhouetted human figure standing at the center of a dark, tangled mass of twisted tree branches that fan outward like consuming tendrils against a glowing red-orange background. The dark limbs enveloping the figure symbolize obsessive passion and deliberate engagement with radical ideology, evoking themes of radicalization, entrapment, and the reciprocal pull toward violent extremism.

The radicalization syndrome: Reciprocal dynamics of obsessive passion and deliberate engagement

By Jocelyn J. Bélanger, Daniel W. Snook, Muhammed Rayyan Ahmed, & Jais Adam-Troian

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Samuel Veissière

McGill University

ORCID Profile Google Scholar

Samuel Veissière is a researcher at McGill University whose work addresses adolescence, development trajectories, and ideological hybridization. Veissière has also written on nihilistic violence and violent extremism, as well as on socio-psychological dimensions of decision-making in the context of integrated water resource management.

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Cécile Rousseau

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52 Publications

2,740 Citations

20 h-index

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Publications in advances.in/psychology

A photo showing a dim, cluttered teenager's bedroom viewed at dusk, with a large window revealing a burning, apocalyptic cityscape glowing orange through partially raised blinds and curtains. Inside are an unmade bed, a wooden chair, a glowing computer monitor on a messy desk, scattered cables, and photographs taped to the walls—visually evoking youth isolation, dystopian worldviews, and radicalization themes discussed in the article.

Commentary

Shifts and continuity in contemporary violent extremism: Moving toward a dynamic and developmental understanding?

By Cécile Rousseau & Samuel Veissière

July 20, 2026

Page last updated: September 30, 2026