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In a nutshell
A familiar word or situation suddenly seems strange. In a laboratory experiment, repeatedly writing the same word can be enough to produce this feeling.
Why does it happen?
Here, knowledge of familiarity and the subjective feeling of familiarity temporarily do not match. Repetition can change habitual processing and make a word seem unusual or unreal. This is related to semantic satiation, but jamais vu is not limited to loss of meaning in words.
Observe it yourself
- Slowly write a simple, familiar word up to 20 times.
- Notice whether it begins to seem unusual, and stop if you feel uncomfortable. The effect may not occur.
Stop if uncomfortable. This is not a diagnostic test.
How common – and for whom?
Frequency unclear
Jamais vu is recorded less systematically in everyday life than déjà vu. A reliable general population estimate for spontaneous experiences is unavailable here.
Frequency is a qualitative description, not your individual probability.
Is it normal?
Brief unfamiliarity after intensive word repetition can be normal.
Voluntary control
Repetition can make it more likely, but a particular sensation is not guaranteed.
When to seek advice
Recurring episodes outside such situations, especially with disorientation or lapses of awareness, should be medically assessed.
Does this happen to you?
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Sources (1)
- The the the the induction of jamais vu in the laboratory: word alienation and semantic satiation (opens a new tab)
Repeated writing of familiar words can induce a subjective feeling of unfamiliarity; the authors study this as jamais vu.
Editorial update: . AI-assisted research and editing; not individually reviewed by a physician. How we research
