Increased familiarity of intellectual deficits in early-onset schizophrenia spectrum disorders

References

• Andreasen NC, Flaum M, Arndt S. 1992. The Comprehensive Assessment of Symptoms and History (CASH). An instrument for assessing diagnosis and psychopathology. Arch Gen Psychiatry 49:615–623.
   PubMed Web of Science ®Google Scholar
• Biswas P, Malhotra S, Malhotra A, Gupta N. 2006. Comparative study of neuropsychological correlates in schizophrenia with onset in childhood, adolescence and adulthood. Eur Child Adolesc Psychiatry 15:360–366.
   PubMed Web of Science ®Google Scholar
• Cannon-Spoor HE, Potkin SG, Wyatt RJ. 1982. Measurement of premorbid adjustment in chronic schizophrenia. Schizophr Bull 8:470–484.
   PubMed Web of Science ®Google Scholar
• Cannon M, Caspi A, Moffitt TE, Harrington H, Taylor A, Murray RM, . 2002. Evidence for early-childhood, pan-developmental impairment specific to schizophreniform disorder: results from a longitudinal birth cohort. Arch Gen Psychiatry 59:449–456.
   PubMed Web of Science ®Google Scholar
• Castle DJ, Murray RM. 1991. The neurodevelopmental basis of sex differences in schizophrenia. Psychol Med 21: 565–575.
   PubMed Web of Science ®Google Scholar
• Dossetor DR. 2007. ‘All that glitters is not gold’: misdiagnosis of psychosis in pervasive developmental disorders – a case series. Clin Child Psychol Psychiatry 12:537–548.
   PubMedGoogle Scholar
• Egan MF, Goldberg TE, Gscheidle T, Weirich M, Rawlings R, Hyde TM, . 2001. Relative risk for cognitive impairments in siblings of patients with schizophrenia. Biol Psychiatry 50:98–107.
   PubMed Web of Science ®Google Scholar
• Engelhart CI, Eisenstein N, Johnson V, Losonczy M. 1999. Comparison of linear equating and prorated short forms for estimating WAIS-R FSIQ in a neuropsychological population. Clin Neuropsychol 13:95–99.
   PubMed Web of Science ®Google Scholar
• Fish B, Kendler KS. 2005. Abnormal infant neurodevelopment predicts schizophrenia spectrum disorders. J Child Adolesc Psychopharmacol 15:348–361.
   PubMed Web of Science ®Google Scholar
• Fisher RA. 1925. Statistical methods for research workers. Edinburgh: Oliver and Boyd.
   Google Scholar
• Frangou S, Hadjulis M, Vourdas A. 2008. The Maudsley early onset schizophrenia study: cognitive function over a 4-year follow-up period. Schizophr Bull 34:52–59.
   PubMedGoogle Scholar
• Geller B, Williams, M., Zimmerman, B., Frazier, J. 1996. Kiddie Schedule for Affective Disorders and Schizophrenia (WASH-U-KSADS). St Louis, MO: Washington University.
   Google Scholar
• Gogtay N, Giedd JN, Lusk L, Hayashi KM, Greenstein D, Vaituzis AC, . 2004. Dynamic mapping of human cortical development during childhood through early adulthood. Proc Natl Acad Sci USA 101: 8174–8179.
   PubMed Web of Science ®Google Scholar
• Gourion D, Goldberger C, Bourdel MC, Bayle FJ, Millet B, Olie JP, . 2003. Neurological soft-signs and minor physical anomalies in schizophrenia: differential transmission within families. Schizophr Res 63:181–187.
   PubMedGoogle Scholar
• Green MF, Kern RS, Heaton RK. 2004. Longitudinal studies of cognition and functional outcome in schizophrenia: implications for MATRICS. Schizophr Res 72:41–51.
   PubMed Web of Science ®Google Scholar
• Groom MJ, Jackson GM, Calton TG, Andrews HK, Bates AT, Liddle PF, . 2008. Cognitive deficits in early-onset schizophrenia spectrum patients and their non-psychotic siblings: a comparison with ADHD. Schizophr Res 99:85–95.
   PubMed Web of Science ®Google Scholar
• Gur RE, Nimgaonkar VL, Almasy L, Calkins ME, Ragland JD, Pogue-Geile MF, . 2007. Neurocognitive endophenotypes in a multiplex multigenerational family study of schizophrenia. Am J Psychiatry 164:813–819.
   PubMed Web of Science ®Google Scholar
• Hallmayer JF, Kalaydjieva L, Badcock J, Dragovic M, Howell S, Michie PT, . 2005. Genetic evidence for a distinct subtype of schizophrenia characterized by pervasive cognitive deficit. Am J Hum Genet 77:468–476.
   PubMed Web of Science ®Google Scholar
• Holmen A, Juuhl-Langseth M, Thormodsen R, Melle I, Rund BR. 2010. Neuropsychological profile in early-onset schizophrenia-spectrum disorders: measured with the MATRICS Battery. Schizophr Bull 36:852–859.
   PubMed Web of Science ®Google Scholar
• Hollis C. 2000a. Adult outcomes of child- and adolescent-onset schizophrenia: diagnostic stability and predictive validity. Am J Psychiatry 157:1652–1659.
   PubMed Web of Science ®Google Scholar
• Hollis C. 2000b. Adolescent schizophrenia. Adv Psychiatr Treat 6:83–92.
   Google Scholar
• Hooper SR, Giuliano AJ, Youngstrom EA, Breiger D, Sikich L, Frazier JA, . 2010. Neurocognition in early-onset schizophrenia and schizoaffective disorders. J Am Acad Child Adolesc Psychiatry 49:52–60.
   PubMed Web of Science ®Google Scholar
• Jones P, Rodgers B, Murray R, Marmot M. 1994. Child development risk factors for adult schizophrenia in the British 1946 birth cohort. Lancet 344:1398–1402.
   PubMed Web of Science ®Google Scholar
• Koenen KC, Moffitt TE, Roberts AL, Martin LT, Kubzansky L, Harrington H, . 2009. Childhood IQ and adult mental disorders: a test of the cognitive reserve hypothesis. Am J Psychiatry 166:50–57.
   PubMed Web of Science ®Google Scholar
• Kravariti E, Morris RG, Rabe-Hesketh S, Murray RM, Frangou S. 2003. The Maudsley early onset schizophrenia study: cognitive function in adolescents with recent onset schizophrenia. Schizophr Res 61:137–148.
   PubMed Web of Science ®Google Scholar
• Kumra S, Wiggs E, Bedwell J, Smith AK, Arling E, Albus K, . 2000. Neuropsychological deficits in pediatric patients with childhood-onset schizophrenia and psychotic disorder not otherwise specified. Schizophr Res 42:135–144.
   PubMed Web of Science ®Google Scholar
• Kyriakopoulos M, Frangou S. 2007. Pathophysiology of early onset schizophrenia. Int Rev Psychiatry 19:315–324.
   PubMed Web of Science ®Google Scholar
• Leeson VC, Sharma P, Harrison M, Ron MA, Barnes TR, Joyce EM. 2009. Stockholm: a 3-year longitudinal study. Schizophr Bull. First published online November 24, 2009. doi: 10.1093/schbul/sbp143.
   Google Scholar
• Lezak MD. 2004. Neuropsychological Assessment Oxford University Press.
   Google Scholar
• McGraw KO, Wong SP. 1996. Forming inferences about some intraclass correlation coefficients. Psychol Methods 1:30–46.
   Web of Science ®Google Scholar
• Morton NE, Yee S, Lew R. 1971. Complex segregation analysis. Am J Hum Genet 23:602–611.
   PubMedGoogle Scholar
• Nam HJ, Kim N, Park T, Oh S, Jeon HO, Yoon SC, . 2009. Cognitive profiles of healthy siblings of schizophrenia patients: application of the cognitive domains of the MATRICS consensus battery. World J Biol Psychiatry 10:452–460.
   PubMed Web of Science ®Google Scholar
• Nicolson R, Lenane M, Singaracharlu S, Malaspina D, Giedd JN, Hamburger SD, . 2000. Premorbid speech and language impairments in childhood-onset schizophrenia: association with risk factors. Am J Psychiatry 157:794–800.
   PubMed Web of Science ®Google Scholar
• Palmer BW, Heaton RK, Paulsen JS, Kuck J, Braff D, Harris MJ, . 1997. Is it possible to be schizophrenic yet neuropsychologically normal? Neuropsychology 11:437–446.
   PubMed Web of Science ®Google Scholar
• Perkins DO, Leserman J, Jarskog LF, Graham K, Kazmer J, Lieberman JA. 2000. Characterizing and dating the onset of symptoms in psychotic illness: the Symptom Onset in Schizophrenia (SOS) inventory. Schizophr Res 44:1–10.
   PubMed Web of Science ®Google Scholar
• Rapoport JL, Addington AM, Frangou S, Psych MR. 2005. The neurodevelopmental model of schizophrenia: update 2005. Mol Psychiatry 10:434–449.
   PubMed Web of Science ®Google Scholar
• Rapoport J, Chavez A, Greenstein D, Addington A, Gogtay N. 2009. Autism spectrum disorders and childhood-onset schizophrenia: clinical and biological contributions to a relation revisited. J Am Acad Child Adolesc Psychiatry 48:10–18.
   PubMed Web of Science ®Google Scholar
• Remschmidt H, Martin M, Fleischhaker C, Theisen FM, Hennighausen K, Gutenbrunner C, . 2007. Forty-two-years later: the outcome of childhood-onset schizophrenia. J Neural Transm 114:505–512.
   PubMedGoogle Scholar
• Rhinewine JP, Lencz T, Thaden EP, Cervellione KL, Burdick KE, Henderson I, . 2005. Neurocognitive profile in adolescents with early-onset schizophrenia: clinical correlates. Biol Psychiatry 58:705–712.
   PubMed Web of Science ®Google Scholar
• Salvatore P, Baldessarini RJ, Tohen M, Khalsa HM, Sanchez-Toledo JP, Zarate CA Jr, . 2009. McLean-Harvard International First-Episode Project: two-year stability of DSM-IV diagnoses in 500 first-episode psychotic disorder patients. J Clin Psychiatry 70:458–466.
   PubMed Web of Science ®Google Scholar
• Sattler J. 2008. Assessment of children: Cognitive applications. San Diego, CA: Jerome M. Sattler, Publisher, Inc.
   Google Scholar
• Shaw P. 2007. Intelligence and the developing human brain. Bioessays 29:962–973.
   PubMed Web of Science ®Google Scholar
• Shaw P, Greenstein D, Lerch J, Clasen L, Lenroot R, Gogtay N, . 2006. Intellectual ability and cortical development in children and adolescents. Nature 440:676–679.
   PubMed Web of Science ®Google Scholar
• Stene J, Stengel-Rutkowski S. 1977. Risk for short arm 10 trisomy. A segregation analysis of eleven families with different translocations. Hum Genet 39:7–13.
   PubMedGoogle Scholar
• Toulopoulou T, Picchioni M, Rijsdijk F, Hua-Hall M, Ettinger U, Sham P, . 2007. Substantial genetic overlap between neurocognition and schizophrenia: genetic modeling in twin samples. Arch Gen Psychiatry 64:1348–1355.
   PubMed Web of Science ®Google Scholar
• Toulopoulou T, Goldberg TE, Mesa IR, Picchioni M, Rijsdijk F, Stahl D, . 2010. Impaired intellect and memory: a missing link between genetic risk and schizophrenia? Arch Gen Psychiatry 67:905–913.
   PubMed Web of Science ®Google Scholar
• Wechsler D. 1991. Wechsler Intelligence Scale for Children. 3rd. San Antonio, TX: The Psychological Corporation.
   Google Scholar
• Wechsler D. 1997. Wechsler Adult Intelligence Scale. 3rd: Administration and Scoring Manual. London: The Psychological Corporation.
   Google Scholar
• White T, Ho BC, Ward J, O'Leary D, Andreasen NC. 2006. europsychological performance in first-episode adoles cents with schizophrenia: a comparison with first-episode adults and adolescent control subjects. Biol Psychiatry 60: 463–471.
   PubMed Web of Science ®Google Scholar