What describes a delusion?

A delusion is characterized as a false belief that is firmly held despite clear and contradictory evidence. This definition is crucial as it highlights the nature of delusions as being resistant to reason or reality. Individuals experiencing delusions are often convinced of their beliefs, even when presented with information that disproves them, reflecting a significant disconnect from reality. This rigid adherence to incorrect beliefs is a key factor in various mental health disorders, particularly psychotic disorders, where delusions are a common symptom.

The other options describe different psychological phenomena. A belief based on correct inference about reality reflects sound judgment and reasoning, which is not the case in delusions. A temporary state of confusion and disorientation could relate to different cognitive states but does not specifically capture the essence of a delusion as an entrenched false belief. Similarly, a normal response to severe stress refers to coping mechanisms or situational responses rather than the persistent and incorrect beliefs that characterize delusions. Thus, the definition of a delusion as a false belief held despite contradictory proof is both specific and accurate within the context of behavioral health.