"Brain scans appeared normal, suggesting the cause was psychological rather than neurological."<p>The proper functioning of the brain is contingent on far more than its macroscopic structure.<p>Calling this disorder "psychological" will just lead to its sufferers dismissed as crazy. Anxiety causes deja-vu? Obviously if that was the case it would be much more prevalent. Anxiety is normal, deja-vu isn't.
I was surprised that only two thirds of people ever experience deva vu. I experience it a couple of times a week and usually say something when I do if someone is around. Nobody ever mentioned that they didn't know what it felt like. Perhaps it's time for a poll.