Julia Sheffield, Ph.D., a clinical psychologist at Vanderbilt University Medical Center, has dedicated her career to solving the mysteries of psychosis. As a clinician, Sheffield, the Jack Martin, MD ...

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 ...

Vance Boelter’s letter to the FBI about his alleged shootings of Minnesota lawmakers reveals grandiose beliefs about his importance in the world and suggests a delusional disorder, according to a ...

Delusions—fixed false beliefs—can be tricky to study. And it's not yet clear how the brain gives rise to these departures from reality. Further, there are many types of delusions. Those with ...

When it comes to schizophrenia, delusions are part of a broader symptom called psychosis, a state of mind where someone becomes detached from reality. “It has to be distinct from commonly held beliefs ...

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 ...