Models of behaviors when detecting displacements of joints

Experimental Brain Research
F J Clark, K A Deffenbacher

Abstract

This report describes two models of human behavior when detecting displacements of joints that allow one to compare and integrate findings from different proprioception tests in a quantitative way. Results from various tests have led to different and often conflicting conclusions about proprioceptive behaviors and their underlying neural mechanisms. However, it has been impossible to compare data and conclusions in any meaningful way due to lack of a suitable analytical framework to accommodate important differences in procedures used in the various tests. These models can provide one such framework. The models, developed using data from proprioception tests reported in the literature, describe how the amplitude and velocity of joint excursions, and the subject bias expressed as false alarm rate, affect the detectability of displacements of joints. Two models were needed to represent observed behaviors: one based on velocity signals alone (the velocity model) and the other based on both velocity and positional signals (the displacement-velocity model). To simulate the detection-decision process subjects used to determine whether a joint was displaced, we adapted strategies from signal detection theory. The models characterized ...Continue Reading

Citations

Dec 29, 2000·Experimental Brain Research·H T Weiler, F Awiszus
Jan 5, 1999·Journal of Neuroscience Methods·H T Weiler, F Awiszus
Nov 11, 2003·Clinical Rehabilitation·Eythor KristjanssonGwendolen Jull

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