ChatGPT Psychosis and delusion are related concepts often seen in psychiatric and psychological contexts, but they have distinct meanings: Psychosis: Psychosis is a broad term that refers to a mental state where a person experiences a loss of contact with reality. It can involve hallucinations (perceiving things that aren't there) and/or delusions (strongly held false beliefs). Psychosis can occur in various mental disorders such as schizophrenia, bipolar disorder, severe depression with psychotic features, or as a result of substance abuse or medical conditions affecting the brain. Delusion: A delusion specifically refers to a fixed false belief that is resistant to reason or contrary evidence. Delusions are typically a symptom of a psychotic disorder but can also occur in other conditions. They can be paranoid (believing others are plotting against you), grandiose (believing you have exceptional abilities or fame), somatic (believing something is wrong with your body despite no