Here's What Happens In Your Brain When You Have 'Déj Vu'

Have you ever experienced a sudden feeling of familiarity while in a completely new place? Or the feeling you've had the exact same conversation with someone before? This feeling of familiarity is, of course, known as déj vu (a French term meaning "already seen") and it's reported to occur on an occasional basis in 60-80% of people. It's an experience that's almost always fleeting and it occurs at random. So what is responsible for these feelings of familiarity? Despite coverage in popular cult...