“Gaslighting is a tactic in which a person or entity, in order to gain more power, makes a victim question their reality.
“It works much better than you may think. Anyone is susceptible to gaslighting, and it is a common technique of abusers, dictators, narcissists, and cult leaders.
“It is done slowly, so the victim doesn’t realize how much they’ve been brainwashed. For example, in the movie Gaslight (1944), a man manipulates his wife to the point where she thinks she is losing her mind.
“People who gaslight typically use the following techniques…”
Read more at Psychology Today