That's not true. You're making the assumption that, as with a Grand Mal seizure, this "small seizure" activity correlated with Deja Vu is random and caused by abnormal functioning of the brain. Should we make that assumption for every "small seizure"? Where does normal activity end and a "small seizure" begin? What brain process can't be correlated to a "small seizure"? Does sex generate a small seizure in certain areas of the brain? Is this brain activity abnormal and uncaused or at least with a cause not identifiable by the subject?