A delusion is a belief based on an inaccurate interpretation of reality, despite clear evidence to the contrary. A delusional disorder causes a person to have delusional thoughts for a prolonged ...

People with schizophrenia often have delusions: false beliefs about themselves or the world around them. The types of delusions in schizophrenia can vary, but persecutory delusions are the most common ...

Delusions are fixed beliefs that do not change, even when a person is presented with conflicting evidence. Delusions are considered "bizarre" if they are clearly implausible and peers within the same ...