Early intervention in psychotic disorders has become seen as increasingly important in recent years. Increased attention has been paid to detecting individuals in the 'prodromal' stage of the condition where they show some symptoms of psychosis but have yet to develop the full-blown condition. A study of 58 patients in Manchester at 'ultrahigh' risk of developing psychosis compared one group who were given six months of cognitive behaviour therapy (CBT) with another group who were carefully monitored by health professionals. The study showed that CBT significantly reduced the likelihood of being prescribed antipsychotic medication and of developing psychosis over a three-year period.
Morrison, Anthony P. ... [et al] - Three-year follow-up of a randomized controlled trial of cognitive therapy for the prevention of psychosis in people at ultrahigh risk Schizophrenia Bulletin May 2007 33(3), 682-687