Unidirectional interference in use of nondominant hand during concurrent Grooved Pegboard and random number generation tasks

Perceptual and Motor Skills
Hans Strenge, Uwe Niederberger

Abstract

The interference effect between Grooved Pegboard task with either hand and the executive task of cued verbal random number generation was investigated. 24 normal right-handed subjects performed each task under separate (single-task) and concurrent (dual-task) conditions. Articulatory suppression was required as an additional secondary task during pegboard performance. Analysis indicated an unambiguous distinction between the two hands. Comparisons of single-task and dual-task conditions showed an asymmetrical pattern of unidirectional interference with no practice effects during pegboard performance. Concurrent performance with nondominant hand but not the dominant hand of random number generation performance became continuously slower. There was no effect of divided attention on pegboard performance. Findings support the idea that the nondominant hand on the pegboard and random number tasks draw from the same processing resources but that for the executive aspect random number generation is more sensitive to changes in allocation of attentional resources.

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Citations

Mar 17, 2010·Experimental Brain Research·Georg Dirnberger, Marjan Jahanshahi
Mar 24, 2010·Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists·Hikari Yamashita
Apr 15, 2014·Journal of the American Statistical Association·Luo XiaoPhilip W Davidson
Dec 30, 2017·Proceedings of the National Academy of Sciences of the United States of America·Paul RinnePaul Bentley
Jul 15, 2017·Behavior Research Methods·Laura Klaming, Björn N S Vlaskamp

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