History Of Déjà Vu

Historically, ‘déjà vu’ has been used as an umbrella term to describe a range of possible déjà experiences.  Physiologists, for instance, have opined that its origin lies in delayed communication between the cerebral hemispheres; psychologists figure these experiences must be due to memory glitches (that the person has seen something in his or her past, and a present situation recalls it); neurologists say they are often caused by temporal lobe epilepsy; and some parapsychologists say they may arise from precognitive dreams. Others prefer reincarnation as an explanation.