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Pubmed for Handhelds

PUBMED FOR HANDHELDS

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  • Title: Unidirectional interference in use of nondominant hand during concurrent Grooved Pegboard and random number generation tasks.
    Author: Strenge H, Niederberger U.
    Journal: Percept Mot Skills; 2008 Jun; 106(3):763-74. PubMed ID: 18712198.
    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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