Gaslighting
Systematically making someone doubt their memory, perception or sanity so that they defer to your version of reality. The word is now used for ordinary disagreement or a single lie; one disputed memory is not gaslighting.
What drives it
It gives the gaslighter control and an escape from accountability: someone who can't trust their own mind can't hold anyone to account. It works best across a power gap (boss and junior, the partner with the money and the one without).
How it shows
Work
'That meeting never happened.' 'I never agreed to that, you misheard.' 'You've been very emotional lately, people are worried about you.' Shown the email, the boss says it meant something else, then tells HR you're struggling. Over time the junior starts recording calls and checking with colleagues whether things really happened.
Relationships
Denying things said or done, moving objects and claiming you misplaced them, 'You're too sensitive', 'You're remembering it wrong again', telling friends you're unstable. The target begins to apologise pre-emptively and to doubt their own reactions.
Self
As target: chronic confusion, needing to write things down, apologising without knowing what for. As possible perpetrator: you insist on your version when you're not actually sure, and you add a remark about the other person's reliability.
What tells it apart
Naive realism: Two people remembering differently is normal, because memory is reconstructive. Gaslighting is one-directional and persistent: the disputed facts always favour the gaslighter, records are denied or reinterpreted, and the argument moves from the facts to your sanity. Someone who simply remembers differently will look at the email, sometimes concede, and errors run both ways.
DARVO: DARVO is a response to a specific accusation, visible in a single exchange; gaslighting is a sustained erosion of someone's perception that needs no accusation to start.
Invalidation: Invalidation dismisses your reaction ('it's not a big deal'); gaslighting disputes what happened and your capacity to perceive it ('that never happened, you're confused').
A test
Bring a record (email, message, calendar entry) to the disputed point: someone who remembers differently engages with it and updates; a gaslighter denies the record or turns the conversation to your state of mind.
Questions to carry
- When the email or message was brought to the disputed point, what did the conversation turn to next?
- Which of my memories have I started to doubt around one particular person, and what do I notice in my body then?
How strong the research is
clinical. Described in clinical writing since the late 1960s and now studied sociologically, but validated measures are new; the behaviour is real and the label is heavily overused.
Where it comes from
Patrick Hamilton's play Gas Light, 1938; clinical use from the late 1960s; sociological account by Paige Sweet, 2019