title: Assessment of Working Memory Capacity in Preschool Children Using the Missing Scan Task.
abstract: The purpose of this study was to investigate the feasibility and validity of a modified version of Buschke's missing scan methodology, the Missing Scan Task (MST), to assess working memory capacity (WMC) and cognitive control processes in preschool children 3-6 years in age. Forty typically developing monolingual English-speaking children between 36 and 84 months in age participated in the study. The children were tested on measures of WMC (MST), verbal and nonverbal memory (NEPSY Narrative Memory and Memory for Designs subtests), and language skills (Peabody Picture Vocabulary Test, fourth edition). Children showed increased working memory capacity scores with age, as measured by the MST, with significant differences between 3- and 5-year-olds and 3- and 6-year-olds. Significant correlations were also found between the MST and language and verbal and nonverbal memory scores. MSTscores still remained significantly correlated with the other measures of memory even after age and global language were accounted for in a regression analysis, demonstrating that the MST captures unique variance related specifically to WMC and cognitive control processes used to retrieve and scan information in short-term memory (STM). The results of this study demonstrate that the MST is a feasible and valid methodology for assessing WMC in preschool children as young 3 years of age.
authors: Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN, USA.
authors: Adrienne S
authors: AS
authors: Roman
authors: Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN, USA.
authors: David B
authors: DB
authors: Pisoni
authors: Riley Child and Adolescent Psychiatry Clinic, Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA.
authors: William G
authors: WG
authors: Kronenberger
keywords: memory scanning; missing scan; working memory capacity
references: Clin Neuropsychol. 2001 Feb;15(1):46-58
references: 11778578
references: Int J Lang Commun Disord. 2000 Jan-Mar;35(1):95-116
references: 10824227
references: Dev Neuropsychol. 2008;33(3):205-28
references: 18473197
references: Child Dev. 2010 Nov-Dec;81(6):1687-95
references: 21077857
references: Psychol Assess. 2006 Dec;18(4):373-81
references: 17154758
references: Nature. 1963 Dec 14;200:1129-30
references: 14098468
references: J Clin Exp Neuropsychol. 2002 Sep;24(6):781-91
references: 12424652
references: Psychol Rev. 1998 Jan;105(1):158-73
references: 9450375
references: Child Dev. 2009 Mar-Apr;80(2):606-21
references: 19467014
references: Dev Psychol. 2004 Mar;40(2):177-90
references: 14979759
references: J Exp Psychol Gen. 2001 Jun;130(2):169-83
references: 11409097
references: J Exp Psychol Gen. 1999 Sep;128(3):309-31
references: 10513398
references: Psychol Bull. 2007 Nov;133(6):1038-66
references: 17967093
references: Psychon Bull Rev. 1996 Dec;3(4):422-33
references: 24213976
references: Br J Psychol. 2006 Aug;97(Pt 3):365-85
references: 16848949
references: Science. 1963 Apr 5;140(3562):56-7
references: 14017286
references: Dev Neuropsychol. 2005;28(2):595-616
references: 16144429
references: J Commun Disord. 2003 May-Jun;36(3):189-208
references: 12742667
references: Child Dev. 2012 Jan-Feb;83(1):282-99
references: 22103310