Delusions of grandeur, also known as grandiose delusions (GDs), are a type of delusion, or false belief. People who experience delusions of grandeur may believe they are famous, God-like, wealthy, ...

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 ...

People experiencing delusions during an episode of psychosis may be "living out" a deeply held emotion, according to new research that provides a "radically different perspective" on one of the most ...