AGINGPutative biomarker of working memory systems development during childhood and adolescenceKeage, Hannah A.D.a; Clark, Christopher R.a; Hermens, Daniel F.c d; Williams, Leanne M.c e; Kohn, Michael R.f g; Clarke, Simonf g; Lamb, Christopherb; Crewther, Davidh; Gordon, Evianc d eAuthor Information aCognitive Neuroscience Laboratory, Flinders University bDepartment of Paediatrics, Flinders Medical Centre, Flinders University, Adelaide, South Africa cThe Brain Dynamics Centre, Westmead Millennium Institute, University of Sydney and Westmead Hospital dThe Brain Resource Company and the Brain Resource International Database eDiscipline of Psychological Medicine, Westmead Hospital fDepartment of Adolescent Medicine, Westmead Hospital gMeridian Clinic, Bondi Junction, New South Wales hBrain Sciences Institute, Swinburne University, Victoria, Australia Correspondence to Professor Richard Clark, School of Psychology, Flinders University, GPO Box 2100, Adelaide, SA 5001, Australia Tel: +61 8 8201 2425; fax: +61 8 8201 3877; e-mail: Richard.Clark@flinders.edu.au Received 5 November 2007; accepted 10 November 2007 NeuroReport: January 22nd, 2008 - Volume 19 - Issue 2 - p 197-201 doi: 10.1097/WNR.0b013e3282f454af Buy Erratum Metrics Abstract The study aimed to identify brain functional indicators of working memory systems development between 6 and 18 years. Event-related potentials (ERPs) were recorded from 251 normally developing children to stimuli requiring the updating of working memory. Cluster analysis of event-related potential componentry divided the sample into three clusters (mean ages 9, 12 and 16 years), with ascending cluster membership independently associated with improved task performance. The clusters correspond to periods of grey matter loss and white matter increase observed in developing children, supporting the view that the clusters delineate three key qualitative stages in advancing cognitive capability during the maturation of higher brain systems function. This outcome identifies a biomarker with the potential for assessing abnormalities in the rate of brain development. Erratum Due to an error at the Publishers' office in the article ‘Putative biomarker of working memory systems development during childhood and adolescence' by Hannah A.D. Keage, Christopher R. Clark, Daniel F. Hermens, Leanne M. Williams, Michael R. Kohn, Simon Clarke, Christopher Lamb, David Crewther and Evian Gordon , which appeared on pp. 197–201 of Volume 19 issue 2 were published incorrectly. 5+ images The online versions have now been corrected, and appear below. We apologise for the error. NeuroReport. 19(6):701, April 16th, 2008. © 2008 Lippincott Williams & Wilkins, Inc.