The crippled brain of the PCT “keeps telling her that something very important is happening, ordinary events appear intensely meaningful. That police car? That song on the radio? That man with a cigarette walking by? They must be part of a massive international conspiracy.

Kapur calls it "biased inductive logic" -- a top-down effort to explain the feeling that everything seems important. The cognitive parts of the brain create the paranoid tale in an effort to explain the constant red alert blaring from the dopamine circuits, using any stimuli available.”