Déjà Vu

What it is

Alan S. Brown's 2003 review gathered more than a century of research: surveys show the experience is common and becomes less frequent with age, and proposed explanations fall into dual processing, neurological, memory and attentional groups. In a 2018 study by Cleary and Claxton, the more a new path resembled one people had seen but did not remember, the more often they reported déjà vu; the feeling raised confidence in predicting the next turn without making the predictions more accurate.

In effect

In the article on déjà vu, it is the subject itself, explained as a memory signal that arrives without its source.

What it does not say

It is an ordinary experience described by memory research. Nothing here is a clinical description or a test of any condition.

---