Mass And Collective Behavior

A social-psychological phenomenon that emerges at the level of a crowd, a mass audience or a whole community rather than a single relationship, including collective panics, socially contagious behavior that spreads from person to person, and diffusion-of-responsibility effects that change how people act when part of a larger group. This group gathers the mass and collective behavior phenomena recorded for this atlas, spanning documented crowd psychology, moral panics, behavioral contagion and historically documented episodes of mass psychogenic phenomena.