Research on the psychological paths leading towards involvement in violent extremism and terrorism has not produced a consistent layout of traits describing recurrent dispositions or plausible vulnerabilities. Extremist/terrorizing violence can adopt many forms from lone-actor attacks to guerrilla actions and other war-like tactics, and such versatility defies unifying depictions. Advances achieved at identifying important elements of ingroup dynamics and commitment ties mediating the surge and activities of violent groups neglected individual factors. Recent research has re-established the relevance of individual temperament traits to explain the attraction, engagement and support to these combative coalitions and the different roles and involvement that people enact in them. This essay presents some of these research forefronts and proposes further integration between individuality-based measures with ingroup-related mechanisms when studying proneness to violent extremism. A merge between Personality and Forensic Psychology with Social Neuroscience appears as a particularly fruitful track to generate consistent advancement in the area.
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