
Brian Duignan
Encyclopædia Britannica Editor
Brian Duignan is a senior editor at Encyclopædia Britannica. His subject areas include philosophy, law, social science, politics, political theory, and religion.
Primary Contributions (192)

Gaslighting, an elaborate and insidious technique of deception and psychological manipulation, usually practiced by a single deceiver, or “gaslighter,” on a single victim over an extended period. Its effect is to gradually undermine the victims’ confidence in their own ability to distinguish truth…
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