PMID- 23159196 OWN - NLM STAT- MEDLINE DCOM- 20130917 LR - 20211021 IS - 1872-7123 (Electronic) IS - 0165-1781 (Print) IS - 0165-1781 (Linking) VI - 206 IP - 2-3 DP - 2013 Apr 30 TI - The course of cognitive functioning over six months in individuals at clinical high risk for psychosis. PG - 195-9 LID - S0165-1781(12)00658-0 [pii] LID - 10.1016/j.psychres.2012.10.013 [doi] AB - Cognitive impairment is common in psychosis and has recently been observed in individuals at clinical high risk (CHR) of developing psychosis. The purpose of this study was to characterize longitudinal change in cognition among CHR individuals, and compare cognition of CHR individuals who later convert to psychosis to that of CHR who do not convert. Participants were tested at baseline and followed-up after six months using a comprehensive cognitive test battery. Individuals who did not convert to psychosis either remained stable or significantly improved in their cognitive performance. At baseline participants who converted to psychosis compared to non-converters exhibited poorer performance in several cognitive tests, suggesting that some cognitive impairment is already present before conversion. Future longitudinal research should address if further decline takes place during the prodrome or after conversion to psychosis. CI - Copyright (c) 2012 Elsevier Ireland Ltd. All rights reserved. FAU - Barbato, Mariapaola AU - Barbato M AD - Hotchkiss Brain Institute, Department of Psychiatry, University of Calgary, Alberta, Canada. FAU - Colijn, Mark A AU - Colijn MA FAU - Keefe, Richard S E AU - Keefe RS FAU - Perkins, Diana O AU - Perkins DO FAU - Woods, Scott W AU - Woods SW FAU - Hawkins, Keith A AU - Hawkins KA FAU - Christensen, Bruce K AU - Christensen BK FAU - Addington, Jean AU - Addington J LA - eng GR - U01MH066069-04/MH/NIMH NIH HHS/United States GR - U01 MH066160/MH/NIMH NIH HHS/United States GR - U01MH066160/MH/NIMH NIH HHS/United States GR - U01 MH066134/MH/NIMH NIH HHS/United States GR - U01MH06634-02/MH/NIMH NIH HHS/United States GR - K23 MH001905/MH/NIMH NIH HHS/United States GR - U01 MH066069/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20121116 PL - Ireland TA - Psychiatry Res JT - Psychiatry research JID - 7911385 SB - IM MH - Adolescent MH - Child MH - *Cognition MH - Cognition Disorders/*psychology MH - Disease Progression MH - Female MH - Humans MH - Longitudinal Studies MH - Male MH - Neuropsychological Tests MH - *Prodromal Symptoms MH - Prospective Studies MH - Psychotic Disorders/*psychology MH - Risk MH - Young Adult PMC - PMC3600156 MID - NIHMS419384 EDAT- 2012/11/20 06:00 MHDA- 2013/09/18 06:00 PMCR- 2014/04/30 CRDT- 2012/11/20 06:00 PHST- 2012/08/27 00:00 [received] PHST- 2012/10/22 00:00 [revised] PHST- 2012/10/24 00:00 [accepted] PHST- 2012/11/20 06:00 [entrez] PHST- 2012/11/20 06:00 [pubmed] PHST- 2013/09/18 06:00 [medline] PHST- 2014/04/30 00:00 [pmc-release] AID - S0165-1781(12)00658-0 [pii] AID - 10.1016/j.psychres.2012.10.013 [doi] PST - ppublish SO - Psychiatry Res. 2013 Apr 30;206(2-3):195-9. doi: 10.1016/j.psychres.2012.10.013. Epub 2012 Nov 16.