Left-versus right-hand tracking performance by right-handed boys and girls: Examination of performance asymmetry

James R. Carey, Jeanne M. Lojovich, Kathleen T. Comnick, Bruce R. Lindgren

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

This study compared left-versus right-hand performance within healthy, right-handed, 8- or 9-yr.-old boys and girls on a finger-movement tracking task. 38 boys and 38 girls were randomly assigned to use either the left hand first and right hand second or vice versa in tracking a sine wave target with extension and flexion movements of the index finger. The data were analyzed with a three-way analysis of variance with repeated measures followed by pair-wise comparisons with a Bonferroni correction. Analysis yielded a significant hand × test interaction and a significant improvement for subjects tracking with the right hand on Test 1 and left hand on Test 2. No significant change occurred for subjects tracking with the left hand on Test 1 and right hand on Test 2. No interaction was observed with sex as a factor. This study suggests that asymmetry of performance favoring the left hand occurs in right-handed boys and girls during finger-movement tracking.

Original languageEnglish (US)
Pages (from-to)779-788
Number of pages10
JournalPerceptual and motor skills
Volume97
Issue number3 I
DOIs
StatePublished - Dec 2003

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