"Roughly 25 percent of people who are admitted to the hospital for depression suffer from psychotic depression. Psychotic depression is characterized by not only depressive symptoms, but also by hallucinations (seeing or hearing things that aren't really there) or delusions (irrational thoughts and fears). Often psychotically depressed people become paranoid or come to believe that their thoughts are not their own (thought insertion) or that others can 'hear' their thoughts (thought broadcasting)."--Submitted by Aleta