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Immersion in a group to the point that one loses a sense of self-awareness and feels lessened responsibility for one’s actions.

Example: Groups of excited, rioting sports fans celebrating a big win can end up commiting acts they would never do alone, such as vandalism or arson.

APA Reference
Grinnell, R. (2018). Deindividuation. Psych Central. Retrieved on July 8, 2020, from