Essay

When She Stopped Recognising the Mirror

6 minute read

For weeks, she told us there was a woman in the house. Not a burglar — a witch, she said, who came in through the bathroom and stared at her. We checked the locks. We reassured her. Nothing worked, because we were solving the wrong problem.

The "witch" was her own reflection. In later-stage dementia, the brain can lose the ability to recognise a mirror image as oneself — a phenomenon sometimes called mirror sign. She wasn't confused about locks or strangers. She was looking at a face that, to her, belonged to someone else entirely: older, unfamiliar, unwelcome in her home.

Why this works

This isn't a trick — it's an application of a broader principle in dementia care: don't argue with the perceived reality, adjust the environment around it. Arguing "that's you in the mirror" asks a damaged part of the brain to do something it may no longer be able to do. Removing the trigger, and replacing it with something that brings comfort instead of confusion, works with the disease rather than against it.

We used a version of the same principle with a second family member — a Holocaust survivor whose dementia brought back a much older fear: soldiers at the door. Reassuring him that the war was over never landed; to him, in that moment, it wasn't. What helped instead was simply sitting with him until the fear passed, without contradicting what he believed he was living through.

If you're facing something similar

Environmental changes like this one are covered in more depth — including a personalisation exercise to adapt them to your own home — in Dementia Care: A Practical Handbook. If you'd like the short version first, The 5 Hardest Moments in Dementia Care is free.