When someone has persecutory delusions, they believe a person or group wants to hurt them. They firmly believe this is true, despite the lack of proof. It may occur with some mental health disorders.

Hallucinations are sensory experiences that seem real but aren’t, often arising from health conditions or substance use, while delusions are firm beliefs in false ideas despite contrary evidence.

Delusions of grandeur are a symptom of mental health conditions like bipolar disorder and schizophrenia. People with this ...

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 ...

A new study provides a novel theory for how delusions arise and why they persist. NYU Langone Medical Center researcher Orrin Devinsky, MD, performed an in-depth analysis of patients with certain ...

Delusions are fixed, false beliefs held with conviction that persists despite evidence to the contrary. They occur as part of various conditions such as severe depression, schizophrenia, or bipolar ...

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...

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 ...