<p>'Psychosis' literally means 'out of touch with reality'. The main psychotic symptoms, delusions and hallucinations, can occur in many conditions, but especially bipolar disorder and schizophrenia. In The Beginner's Guide to Sanity, Erica Crompton, a journalist with a history of paranoid schizophrenia, and Professor Stephen Lawrie, an academic psychiatrist, share what they know about psychosis drawn from over 50 years' combined experience. Whet...