Psychologists identify the dark traits behind an extremist mindset

June 3, 2026 - 16:06

A new study in psychological science sheds light on the hidden personality factors that push ordinary people toward militant extremism. Researchers have found that traits like everyday sadism and a cynical, manipulative outlook are strong predictors of extremist ideology, even more so than traditional measures of aggression or authoritarianism.

The study, which analyzed the relationship between dark personality traits and moral reasoning, suggests that individuals who enjoy the suffering of others or view the world as a zero-sum game are more likely to justify political violence. These traits, often called the "dark tetrad," include narcissism, Machiavellianism, psychopathy, and sadism. However, the latest findings point to sadism and Machiavellianism as the most powerful drivers.

Scientists asked participants to evaluate moral dilemmas and scenarios involving political conflict. Those who scored high on sadistic tendencies were more willing to endorse harm against outgroups, while those with high Machiavellian traits rationalized violence as a necessary tool for achieving ideological goals. The research challenges the common assumption that extremism stems purely from ignorance or economic hardship. Instead, it highlights how certain personality profiles can make individuals receptive to radical narratives that dehumanize opponents.

The authors argue that understanding these psychological roots could help develop better intervention strategies. Rather than focusing solely on countering propaganda, programs might need to address the underlying personality traits that make people vulnerable to extremist appeals. The study also raises ethical questions about how society balances free expression with the need to prevent violent radicalization. While not everyone with dark traits becomes an extremist, the research provides a clearer map of the psychological terrain where such beliefs take hold.