The term “delusion” refers to a strong, consuming belief in something that is untrue. Religious delusions involve beliefs concerning religious ideologies or figures. Religious delusions differ from ...

Terms such as delusions or conspiracy theories express a disapproving attitude. Suppose I am convinced that a celebrity I have never met is in love with me. My belief may be considered delusional. To ...

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 ...

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 ...