Déjà vu

Deja-vu is a common phrase from the French language which translates literally into “already seen”. This is a well documented phenomenon that can commonly occur throughout both sober living and under the influence of hallucinogens. It can be described as having the strong sensation that the current event or situation has already been experienced at some point within the past when, in fact, it hasn't.

Certain substances are commonly capable of inducing spontaneous and often prolonged states of mild to intense sensations of deja-vu. This provides one with an overwhelming sense that they have “been here before”. The sensation is often accompanied by a false feeling of familiarity with the effects of the substance itself, the current location or setting, the current physical actions being performed, and the situation as a whole.

This effect is often triggered despite the fact that during the experience of it one can be rationally aware that the circumstances of the “previous” experience (when, where, and how the earlier experience occurred) are uncertain or believed to be impossible.

Psychoactive substances

Compounds within our psychoactive substance index which may cause this effect include:

See also

• Subjective effects index
• Psychedelics - Subjective effects
• Dissociatives - Subjective effects
• Deliriants - Subjective effects Cognitive:Effect