Biblioteca Aberta do Ensino Superior da Universidade de Aveiro

Biblioteca Aberta do Ensino Superior da Universidade de Aveiro >
ALFA - Comunidade BAES >
Artigos >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10849/216

Title: Working memory and mental arithmetic: a case for dual central executive resources
Authors: Ketelsen, K.
Welsh, M.
Keywords: Working memory
Central executive
Dual-task paradigm
Issue Date: 2010
Publisher: Elsevier
Abstract: The current study was designed to examine the possible existence of two limited-capacity pools of central executive resources: one each for verbal and visuospatial processing. Ninety-one college students (M age = 19.0, SD = 2.2) were administered a verbal working memory task that involved updating numbers in 2-, 3-, and 4-load conditions. The task was administered in both single task (no-interference condition) and dual-task (verbal interference and visuospatial interference conditions) formats. Findings indicated main effects for both memory load and type of interference, as well as, a load x interference interaction. Verbal interference led to a steeper increase in errors on the primary verbal working memory task; whereas, there was a smaller increase in errors across load in both the non-verbal and no-interference conditions. The effect of verbal interference and the lack of a spatial interference effect on a primary task that utilized verbal working memory resources, suggests that the processing of verbal and spatial stimuli in a dual-task paradigm requires separate central executive resources.
URI: http://hdl.handle.net/10849/216
Appears in Collections:Artigos

Files in This Item:

File Description SizeFormat
Working memory and mental arithmetic.pdf240.6 kBAdobe PDFView/Open
Working memory and mental arithmetic.rtf6.3 MBRTFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace