One of the Cognitive ghosts discussed in the The Rest Is Science episode “Cognitive Ghosts”.
What it is
Presque vu (French for “almost seen”) is the maddening tip-of-the-tongue state: you know that you know something — a name, a word, a fact — and you can feel it hovering just out of reach, but you can’t quite retrieve it. It often comes with a strong sense that the answer is imminent.
What’s happening in the brain
Tip-of-the-tongue states are thought to reflect a partial retrieval failure: you can access information about the target (its first letter, how many syllables, related concepts) while the full word itself stays blocked. One factor is interference — a similar, “competing” word keeps surfacing and actively inhibits the one you’re after, like a blocker standing in the doorway. The feeling of “it’s coming!” is the metacognitive system reporting that the target is close in memory, even before it’s recovered.
References from the show
- Described in the episode as the “on the tip of your tongue” feeling — the brain inhibiting recollection of the target fact even while it serves up adjacent, neighbouring information.
Links
Related
- Déjà vu · Jamais vu · Déjà rêvé — the rest of the “vu” family
- Cognitive ghosts