<unk> s are a set of<unk> al conditions in which the affected persons believe they are being persecuted, despite a lack of evidence. Specifically, they have been defined as containing two central elements: * the individual thinks that harm is occurring, or is going to occur. * the individual thinks that the perceived<unk> has the intention to cause harm. According to the DSM-IV-TR,<unk> s are the most common form of<unk> s in paranoid schizophrenia, where the person believes "he or she is being tormented, followed, tricked, spied on, or ridiculed", or that their food is being poisoned. They are also often seen in schizoaffective disorder and, as recognized by DSM-IV-TR, constitute the cardinal feature of the<unk>  subtype of<unk> al disorder, by far the most common.<unk> s of persecution may also appear in manic and mixed episodes of bipolar disorder, polysubstance abuse, and severe depressive episodes with psychotic features, particularly when associated with bipolar illness. A 2020 study by Sheridan et. al. gave figures for lifetime prevalence of perceived stalking by groups, a common form of<unk> , at 0.66% for adult women and 0.17% for adult men.
Persecutory delusion
Monothematic delusion
Homicidal ideation
Cotard delusion
Anticipatory grief
Obsessive love
Self-disorder
Autovampirism