Aggression Is Contagious: Observing Violence Primes the Brain for Aggression

Summary: A new study shows that observing violence can make individuals more likely to act aggressively later, but the effect depends on familiarity. Male mice who watched familiar peers attack…

Bystander Support Reduces Antisocial Behavior

Summary: A new study emphasizes the crucial role of bystanders in confronting anti-social behavior. Three studies showed that bystander support reinforces social norms and discourages harmful conduct, while silence or…