title: Criterion and construct validity of the CogState Schizophrenia Battery in Japanese patients with schizophrenia.
abstract: BACKGROUND
  The CogState Schizophrenia Battery (CSB), a computerized cognitive battery, covers all the same cognitive domains as the Measurement and Treatment Research to Improve Cognition in Schizophrenia (MATRICS) Consensus Cognitive Battery but is briefer to conduct. The aim of the present study was to evaluate the criterion and construct validity of the Japanese language version of the CSB (CSB-J) in Japanese patients with schizophrenia.
  
  
  RESULTS
  Forty Japanese patients with schizophrenia and 40 Japanese healthy controls with matching age, gender, and premorbid intelligence quotient were enrolled. The CSB-J and the Brief Assessment of Cognition in Schizophrenia, Japanese-language version (BACS-J) were performed once. The structure of the CSB-J was also evaluated by a factor analysis. Similar to the BACS-J, the CSB-J was sensitive to cognitive impairment in Japanese patients with schizophrenia. Furthermore, there was a significant positive correlation between the CSB-J composite score and the BACS-J composite score. A factor analysis showed a three-factor model consisting of memory, speed, and social cognition factors.
  
  
  CONCLUSIONS
  This study suggests that the CSB-J is a useful and rapid automatically administered computerized battery for assessing broad cognitive domains in Japanese patients with schizophrenia.
authors.affiliation: Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan.
authors.forename: Taisuke
authors.initials: T
authors.lastname: Yoshida
authors.forename: Motomu
authors.initials: M
authors.lastname: Suga
authors.forename: Kunimasa
authors.initials: K
authors.lastname: Arima
authors.forename: Yasuko
authors.initials: Y
authors.lastname: Muranaka
authors.forename: Tsunehiko
authors.initials: T
authors.lastname: Tanaka
authors.forename: Satoshi
authors.initials: S
authors.lastname: Eguchi
authors.forename: Crystal
authors.initials: C
authors.lastname: Lin
authors.forename: Sumiko
authors.initials: S
authors.lastname: Yoshida
authors.forename: Masanori
authors.initials: M
authors.lastname: Ishikawa
authors.forename: Yuko
authors.initials: Y
authors.lastname: Higuchi
authors.forename: Tomonori
authors.initials: T
authors.lastname: Seo
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Ueoka
authors.forename: Masahito
authors.initials: M
authors.lastname: Tomotake
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Kaneda
authors.forename: David
authors.initials: D
authors.lastname: Darby
authors.forename: Paul
authors.initials: P
authors.lastname: Maruff
authors.forename: Masaomi
authors.initials: M
authors.lastname: Iyo
authors.forename: Kiyoto
authors.initials: K
authors.lastname: Kasai
authors.forename: Teruhiko
authors.initials: T
authors.lastname: Higuchi
authors.forename: Tomiki
authors.initials: T
authors.lastname: Sumiyoshi
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Ohmori
authors.forename: Kiyohisa
authors.initials: K
authors.lastname: Takahashi
authors.forename: Kenji
authors.initials: K
authors.lastname: Hashimoto
mesh_terms: D000328:Adult; D000368:Aged; D044466:Asian People; D016022:Case-Control Studies; D003071:Cognition / Q000502:physiology*; D003710:Demography; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D015203:Reproducibility of Results; D012559:Schizophrenia / Q000503:physiopathology*; D013997:Time Factors; D055815:Young Adult