Support vector machines categorize the scaling of human grip configurations

Behavior Research Methods
P CesariK M Newell

Abstract

In previous work (Cesari & Newell, 2002), we used a graphical dimensional analysis to show that grip transitions obey the body-scaled relation K = lnL(o) + InM(o)h/(a + bM(h) + cL(h)), where L. and Mo are the object's length and mass, and Lh and Mh the length and mass of the grasper's hand. However, the generality of the equation was limited by the ad hoc graphical method that defined the lines for grip separation and by the assumption that these lines be negatively sloped and parallel to one another. This article reports an independent test of this relation by the geometrical and statistical categorization of body-scaled invariants for the transition of human grip configurations through support vector machines (SVMs). The SVM analysis confirmed the fit of linear, negatively sloped, and approximately parallel transition boundaries in the scaling of human grip configuration within a single hand. The SVM analysis has provided a theoretical refinement to the scaling model of human grip configurations.

References

Aug 1, 1990·Human Genetics·A NovellettoA Sittien
Dec 1, 1989·Developmental Psychobiology·K M NewellR Baillargeon
Aug 28, 1999·Journal of Experimental Psychology. Human Perception and Performance·P Cesari, K M Newell
May 8, 2000·Developmental Psychobiology·P Cesari, K M Newell
Oct 20, 2000·Journal of Experimental Psychology. Human Perception and Performance·P Cesari, K M Newell
Jan 25, 2005·Human Movement Science·Hyeg Joo Choi, Leonard S Mark
May 13, 2005·IEEE Transactions on Bio-medical Engineering·Rezaul K BeggBrendan Owen

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Citations

Jan 5, 2011·Human Movement Science·Daniel JanssenKatrin Vehof

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