TED-Ed: What is deja vu? What is deja vu? - Michael Molina

The video explores the phenomenon of déjà vu, a feeling of familiarity in unfamiliar situations. It discusses the challenges in studying déjà vu due to its fleeting nature and lack of physical evidence. The video presents three theories: dual processing, where a delay in brain processing causes déjà vu; hologram theory, where a fragment of a memory triggers a sense of familiarity; and divided attention, where subliminal perception leads to déjà vu. The video concludes by encouraging viewers to reflect on their own experiences of déjà vu.

What is one of the main challenges scientists face when studying déjà vu?

• It has clear physical symptoms.

• It is a brief experience without notice.

• It occurs frequently and predictably.

• It is easy to replicate in a lab setting.

According to the dual processing theory, what causes the sensation of déjà vu?

• A new experience that is identical to a past one.

• A delay in processing information from one brain pathway.

• A conscious recollection of a past event.

• A complete synchronization of brain hemispheres.

How does the hologram theory explain déjà vu?

• By asserting that memories are stored in a fragmented manner.

• By indicating that memories are stored in a linear sequence.

• By proposing that memories are stored as holograms.

• By suggesting that memories are stored as complete images.

What does the divided attention theory suggest about déjà vu?

• It arises when our brain records the environment subconsciously.

• It occurs when we are fully focused on our surroundings.

• It happens when we consciously ignore our environment.

• It is triggered by a specific object in our direct focus.

What is a common feature shared by all three theories of déjà vu discussed?

• They all involve conscious recollection of past events.

• They all suggest a form of memory processing error.

• They all claim to be the definitive explanation.

• They all rely on physical manifestations of déjà vu.