Delusional disorder refers to a condition in which an individual displays one or more delusions for one month or longer. Delusional disorder is distinct from schizophrenia and cannot be diagnosed if a ...

A new study from Simon Fraser University researchers has found a close link between high levels of social media use and psychiatric disorders that involve delusions, such as narcissism and body ...

Former director of Minnesota Security Hospital says letter reminds him of patients he treated with grandiose delusions. Vance Boelter’s letter to the FBI about his alleged shootings of Minnesota ...

Sophomania is the profound, often delusional, conviction of being the smartest person around, even when reality suggests ...

Key points Delusional disorder can be hard to detect because the pathology is encapsulated and the person may seem very stable. If someone's delusion becomes believed by others and affects their ...