2 Quotes by Samantha Rodman

invalidation is crazy-making, and it is also at the root of gaslighting, where victims' feelings are purposely denied or manipulated in order to make them question their sanity.

This term is used in the 1944 Ingrid Bergman film Gaslight, in which a husband purposefully drives his wife insane by flickering lights, making noises in the attic, and then claiming the very real experience was all in her head.