Which of these is a delusion?

Question

Quizplus · Accepted Answer

A delusion is a fixed false belief that is not based in reality. Believing that the CIA has implanted a microchip in one's brain is a clear example of a delusion. The other options may involve hallucinations (hearing the devil talking inside one's head) or a sensory perception abnormality (reporting a smell that is not present). While they may be indicative of mental health issues, they are not necessarily delusions. The last option involves a belief in UFOs, but without more information it is difficult to determine if it rises to the level of a delusion.

Which of These Is a Delusion