*Individuals with paranoid schizophrenia and persecutory delusional disorder experience what is known as persecutory delusions: an irrational, yet unshakable, belief that someone or others are plotting against them. Paranoid beliefs are prevalent in many individuals and are often the cause of disputes between individuals and society. | *Individuals with paranoid schizophrenia and persecutory delusional disorder experience what is known as persecutory delusions: an irrational, yet unshakable, belief that someone or others are plotting against them. Paranoid beliefs are prevalent in many individuals and are often the cause of disputes between individuals and society. |