What do envy and jealousy have to do with mass murder? Quite a lot, it turns out. Drawing on new research, Keith Minihane outlines how envy and jealousy shape two distinct psychological pathways to vi...

Evolutionary theory and historical evidence suggest humans possess distinct psychological tendencies for defensive and offensive violence, which ha...

YouTube video by Evolutionary Psychology (The Podcast)

There is a widespread belief, in both the scholarly literature and the popular press, that polygyny prevents large numbers of men from marrying by ...

Mass murderers tend to be either socially rejected young men or middle-aged men facing personal collapse, according to a new systematic review. The findings highlight how developmental stage and stress exposure shape violent behavior through evolved psychological mechanisms.

Research has identified a bimodal age distribution among mass murderers, with younger offenders typically in late adolescence and older offenders in middle age. An evolutionary perspective offers a co...

Former DHS official William Braniff talks about building an innovative model for stopping terrorism—and how its loss may harm America.

This study uses latent class analysis to examine a global sample of mass murderers, identifying two distinct offender categories analyzed through an evolutionary lens. “Envy type” offenders were typic...

A rationale is always just a scroll or a click away.

Accessing extremism online has never been easier, the threat has never been higher, and the ideology of those conducting attacks has never been more splintered.

Nature Communications - The authors show that affective valence is tied to visual processing. They identify a direct route from visual features to valence experience, separate from higher-order...

Impulsivity is recognized as a significant radicalization risk factor, yet its underlying mechanisms remain unclear. Previous research suggests that impulsive actions are emotionally driven. If so,...

Models of radicalization have typically placed grievances at the heart of radicalization. In contrast, we argue that viewing the radicalizing agent as decidedly proactive, and less reactive, better ac...

Models of radicalization have typically placed grievances at the heart of radicalization. In contrast, we argue that viewing the radicalizing agent as decidedly proactive, and less reactive, better ac...