Delusion Delusional perception 2023-07-28T13:55:40Z A true perception, to which a patient attributes a false and usually bizarre meaning or interpretation. It is often a revelatory experience that is sudden and is a profound realization of the delusional belief. It often occurs in the context of delusional mood or atmosphere wherein vague and mysterious hunches or concerns with nebulous meaning evolve into clear, delusional observations, and expresses delusions of reference.