The puzzling symptom of paranoia: a response

In a clinical setting where early diagnosis and intervention is necessary, the reliability of paranoia as a manifestation of psychosis in a series of cases has come under justifiable scrutiny by the authors. However, in so doing, due consideration must be given to factors such as the significance that could be attached to retrospective diagnoses, adolescent prodromal conditions, the diagnostic criteria for Asperger syndrome and personality and cultural factors, making the task of the psychiatrist rather complex.