What Is Gaslighting

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Gaslighting is a form of psychological manipulation in which one person repeatedly causes another to doubt their own memory, perception, or judgment. Over time, the person being gaslit may feel confused, anxious, and unable to trust themselves, and they may become more dependent on the person doing the gaslighting. The term comes from a 1938 play and later film in which a husband manipulates his wife into believing she is losing her mind. Gaslighting can occur in romantic relationships, families, friendships, and workplaces. It is a recognized form of emotional abuse.

What Gaslighting Looks Like

• Denying things that were said or done, even with evidence: "That never happened."
• Telling someone they are too sensitive, imagining things, or overreacting.
• Rewriting events so the other person seems at fault.
• Questioning someone's memory repeatedly until they doubt it.
• Telling others that the person is unstable or confused.
• Minimizing feelings: "You are making a big deal out of nothing."
• Shifting blame whenever concerns are raised.

People on the receiving end often notice themselves second-guessing, apologizing constantly, keeping notes to check their memory, feeling that something is wrong but not being able to name it, and withdrawing from friends who might offer a different view.

Why It Happens

Gaslighting is usually a way to gain or maintain control, avoid accountability, or win conflicts. Some people gaslight deliberately. Others do it less consciously, as a defensive pattern learned in their own families. Either way, the effect on the other person can be serious. Gaslighting often occurs alongside other controlling behaviours, such as isolation, monitoring, or intimidation. It works gradually: small distortions build up until the person being gaslit relies on the other's version of reality. Power imbalances, such as financial dependence or workplace hierarchy, make it more effective.

The long-term effects can include anxiety, depression, low self-esteem, difficulty making decisions, and trauma responses. Many people describe the lasting impact as losing trust in their own mind.

What It Is Not

• Not every disagreement. People remember events differently, and honest disagreement is not gaslighting.
• Not a single misunderstanding. Gaslighting is a repeated pattern that undermines someone's perception.
• Not the same as lying once. It involves systematically making someone doubt their reality.
• Not your fault. Being gaslit is not a sign of weakness or poor judgment.
• Not always linked to a diagnosis. Gaslighting can occur with or without traits such as those described on the page about narcissistic personality disorder.

How It Is Assessed and Supported

Gaslighting is not a diagnosis, but its effects on mental health can be assessed and treated. Recognizing the pattern is often the first step. Useful approaches include keeping a private record of events, talking with trusted people outside the relationship, and noticing how you feel before and after interactions. When the relationship is abusive or unsafe, safety planning and domestic violence services are important. Therapy can help rebuild self-trust, process emotional harm, and understand relationship patterns. The page on trauma bonds may help if leaving feels difficult.

Getting Support at Pacific Maple Psych Centre

If you have been made to doubt your own reality, trauma-informed therapy can help you rebuild confidence in your perceptions and decisions, and support you in whatever next steps feel safe.