What is the main idea of the passage?

Déjà vu may occur when strong familiarity appears without a matching recollection, showing that certainty and evidence can separate. (The passage defines the experience, distinguishes memory processes, offers cautious possibilities, and sets a health qualification.)

Why can a new café feel familiar without a remembered visit?

Its layout may resemble an earlier place whose specific context is not consciously retrieved. (The fourth paragraph offers partial similarity without accessible source details as one possible mechanism.)

What does “conviction” mean in the first paragraph?

a strong feeling of certainty (The person feels certain despite lacking evidence or details, so conviction means strong certainty.)

When does the passage recommend medical attention?

when déjà vu is frequent and comes with confusion or other symptoms (The final paragraph gives frequency plus accompanying symptoms as the reason to seek attention.)

The Strange Feeling of Having Been Here: Level 4 Reading Comprehension Questions

In an unfamiliar café, you suddenly feel this moment has happened before. The conviction is vivid, yet no earlier visit emerges. This mismatch is déjà vu, French for “already seen.” Déjà vu is common, especially among younger adults, and usually lasts only seconds. It is not itself proof of a hidden memory, prediction, or supernatural event. Researchers instead study how systems for familiarity and detailed recollection may briefly separate.

Familiarity is the general signal that something has been encountered. Recollection supplies context: where, when, and with whom. Normally those processes support each other. During déjà vu, a new scene may trigger a strong familiarity signal without the details that would identify a real past episode.

Why might that happen? A current layout may resemble an earlier place that is not consciously recalled. Attention may register part of a scene before the rest, making the completed perception feel repeated. Researchers have proposed several mechanisms, and no single explanation covers every case.

The feeling is interesting precisely because certainty and evidence pull apart. A person can acknowledge the experience without treating its message as fact. Frequent déjà vu accompanied by confusion or other symptoms deserves medical attention, but an occasional passing episode is generally an ordinary feature of memory. It reveals that feeling familiar and retrieving a source are related achievements, not the same one.

Comprehension questions