Similarities and differences in finger interaction across typical and atypical subpopulations

Mark L. Latash; Fan Gao; Vladimir M. Zatsiorsky

doi:10.1123/jab.19.3.264

Similarities and differences in finger interaction across typical and atypical subpopulations

Mark L. Latash, Fan Gao, Vladimir M. Zatsiorsky

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The method of multidimensional scaling was applied to matrices of finger interaction (IFM) computed for individual participants for finger force production tasks. When IFMs for young controls, elderly, and persons with Down syndrome were pooled, only two dimensions described interpersonal differences; these were related to total force and to the total amount of enslaving. When IFMs for each group were analyzed separately, subpopulation-specific dimensions were found. Potentially, this analysis can be applied to discover meaningful dimensions that reflect differences in indices of finger interaction across and within subpopulations which differ in their apparent ability to use the hand. It may also be useful for tracking changes in finger interaction that occur in the process of specialized training or motor rehabilitation.

Original language	English (US)
Pages (from-to)	264-270
Number of pages	7
Journal	Journal of Applied Biomechanics
Volume	19
Issue number	3
DOIs	https://doi.org/10.1123/jab.19.3.264
State	Published - Aug 2003

Keywords

Aging
Down syndrome
Force
Multidimensional scaling

ASJC Scopus subject areas

Biophysics
Orthopedics and Sports Medicine
Rehabilitation

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10.1123/jab.19.3.264

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abstract = "The method of multidimensional scaling was applied to matrices of finger interaction (IFM) computed for individual participants for finger force production tasks. When IFMs for young controls, elderly, and persons with Down syndrome were pooled, only two dimensions described interpersonal differences; these were related to total force and to the total amount of enslaving. When IFMs for each group were analyzed separately, subpopulation-specific dimensions were found. Potentially, this analysis can be applied to discover meaningful dimensions that reflect differences in indices of finger interaction across and within subpopulations which differ in their apparent ability to use the hand. It may also be useful for tracking changes in finger interaction that occur in the process of specialized training or motor rehabilitation.",

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AB - The method of multidimensional scaling was applied to matrices of finger interaction (IFM) computed for individual participants for finger force production tasks. When IFMs for young controls, elderly, and persons with Down syndrome were pooled, only two dimensions described interpersonal differences; these were related to total force and to the total amount of enslaving. When IFMs for each group were analyzed separately, subpopulation-specific dimensions were found. Potentially, this analysis can be applied to discover meaningful dimensions that reflect differences in indices of finger interaction across and within subpopulations which differ in their apparent ability to use the hand. It may also be useful for tracking changes in finger interaction that occur in the process of specialized training or motor rehabilitation.

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Similarities and differences in finger interaction across typical and atypical subpopulations

Abstract

Keywords

ASJC Scopus subject areas

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