Crowd psychology

Lynching is an extrajudicial killing by a group. It is most often used to characterize informal public executions by a mob in order to punish an alleged or convicted transgressor or to intimidate others. It can also be an extreme form of informal group social control, and it is often conducted with the display of a public spectacle (often in the form of a hanging) for maximum intimidation. Instances of lynchings and similar mob violence can be found in all societies.

search for witches or evidence of witchcraft, often involving moral panic, or mass hysteria

military information operations aimed at promoting behaviour to assist military objectives

democracy spoiled by demagoguery and the rule of passion over reason

American propaganda and marketing pioneer (1891-1995)

psychological phenomenon regarding the structure of the unconscious mind between members of the same species

social psychological phenomenon in which individuals are less likely to offer help to a victim when other people are present

figure of speech dating from Roman antiquity

range of ideas tolerated in public discourse

statement and provocative poem attributed to pastor Martin Niemöller

set of medical symptoms affecting U.S. and Canada government personnel

branch of social psychology

feeling of fear spread among a large number of people that some evil threatens the well-being of society

political science theory about the expression of opinion

phenomenon whereby the rate of uptake of beliefs, ideas, fads and trends increases the more that they have already been adopted by others

2011 fad

example of metachronal rhythm achieved in a packed stadium

shared beliefs and ideas in society

Roman poet

how individuals in a group can act collectively without centralized direction

method of market analysis

thumb|right|220px|Pet Rock|Pet rocks were a short-lived fad in the 1970s. thumb|A man performing the floss (dance)|floss, a dance move that became popular in 2017 A fad, trend, or craze is any form of collective behavior that develops within a culture, a generation, or social group in which a group of people enthusiastically follow an impulse for a short time period.

conceptual collapse in behavior which can result from overcrowding

spontaneous spread of emotions among a group

spread of illness symptoms through a population where there is no viral or bacterial agent responsible for contagion

sociopsychological phenomenon whereby a person is less likely to take responsibility for action or inaction when others are present

form of public humiliation and torture used by the Chinese Communist Party in the Mao era

that a group is able to make far better decisions than any individual in the group

social processes and events which do not reflect existing social structure, but which emerge in a "spontaneous" way

psychological effect on perceptions of attractiveness

shared sense of belonging to a group

digital-communication coordinated group

use of crowd psychology to engage, control, or influence the desires of a crowd

murder

Fearmongering, or scaremongering, is the act of exploiting feelings of fear by using exaggerated rumors of impending danger, usually for personal gain.

behavior, emotions, or conditions spreading spontaneously through a group or network

scenario in which financial shocks spread to other financial sectors

contested possibility of violent crime increasing with reduced proactive policing

Homohysteria is the fear of being thought homosexual because of behavior that is typically considered gender atypical. Homohysteria can exist in cultures where it is understood that people are and can be homosexual, even if closeted, and that homosexuality is perceived as less desirable than heterosexuality. This combination leads to men fearing others will think they are gay if they do not fit male gender stereotypes. Not fitting into gender stereotypes (gender atypicality) has historically been associated with gay men, with the trials of Oscar Wilde furthering this belief in Britain and else

group protection theory

collective forgetting by a group of people

sociological concept coined by Émile Durkheim

collective trauma on a national scale

theoretical term in social psychology and cultural anthropology