<prompt> Delusion that nothing exists in this world isDelusion of influenceNihilistic delusionDelusion of self reproachErotomania  <response>: Nihilistic delusion It is the delusion of hat nothing exists in the world, even he doesnt exist. This type of delusion may be seen in endogenous depression and bipolar disorder. Ref: FORENSIC MEDICINE ANad TOXICOLOGY Dr PC IGNATIUS THIRD EDITION PAGE 359 