Swiss researchers, analyzing data from a prospective study. found a continuity of sub-clinical psychosis in the general population, with only a small proportion that suffered from distressing symptoms. The researchers found that the syndromes identified were similar to those found in schizophrenia diagnoses. Results appeared online in European Psychiatry.
Rossler, W., Hengartner, M., Ajdacic-Cross, V., Haker, H., Angst, J., Lifetime and 12-month prevalence rates of sub-clinical psychosis symptoms in a community cohort of 50-year-old individuals. European Psychiatry, ePub September 15, 2012