title: Psychosis and academic performance.
abstract: BACKGROUND
  It has been suggested that psychosis genes might be associated with beneficial effects, explaining their high frequency in all human populations.
  
  
  OBJECTIVE
  To test the relationship between academic success and the incidence of psychotic disorders.
  
  
  METHODS
  The unusually complete demographic and scholastic records available in Iceland were used to locate academically accomplished individuals and assess the probability of previously identified patients with mental disorders and their relatives being among such groups.
  
  
  RESULTS
  Close relatives of successful students showed increased risks of psychosis. Individuals who subsequently developed psychosis and relatives of people with psychosis excelled in school performance, particularly in mathematics.
  
  
  CONCLUSIONS
  The study supports the hypothesis that stimulation associated with psychotic tendencies enhances performance in academic settings.
authors.affiliation: Institute of Genetics, Hraunteig 16, Reykjavik, Iceland. jonlk@interx.net
authors.forename: Jon L
authors.initials: JL
authors.lastname: Karlsson
mesh_terms: D000124:Achievement; D000368:Aged; D000369:Aged, 80 and over; D004522:Educational Status; D005260:Female; D006760:Hospitalization / Q000706:statistics & numerical data; D006801:Humans; D007055:Iceland / Q000453:epidemiology; D015994:Incidence; D007360:Intelligence; D008137:Longitudinal Studies; D008297:Male; D008433:Mathematics; D008875:Middle Aged; D011618:Psychotic Disorders / Q000453:epidemiology / Q000235:genetics / Q000523:psychology*