Based on their previous work on the "Dark Triad" of personality, Buckels and colleagues Delroy Paulhus of the University of British Columbia and Daniel Jones of the University of Texas El Paso surmised that sadism is a distinct aspect of personality that joins with three others -- psychopathy, narcissism, and Machiavellianism -- to form a "Dark Tetrad" of personality traits.
"Trolling culture is unique in that it explicitly celebrates sadistic pleasure, or 'lulz,'" says Buckels. "It is, perhaps, not surprising then that sadists gravitate toward those activities."
And they're also exploring vicarious forms of sadism, such as enjoying cruelty in movies, video games, and sports.
The researchers believe their findings have the potential to inform research and policy on domestic abuse, bullying, animal abuse, and cases of military and police brutality.
"It is such situations that sadistic individuals may exploit for personal pleasure," says Buckels. "Denying the dark side of personality will not help when managing people in these contexts."