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The Head-Neck Sensory Motor System$
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Alain Berthoz, Werner Graf, and P. P. Vidal

Print publication date: 1992

Print ISBN-13: 9780195068207

Published to Oxford Scholarship Online: March 2012

DOI: 10.1093/acprof:oso/9780195068207.001.0001

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Perception of the Orientation of the Head on the Body in Man

Perception of the Orientation of the Head on the Body in Man

(p.488) Chapter 77 Perception of the Orientation of the Head on the Body in Man
The Head-Neck Sensory Motor System

Janet L. Taylor

Oxford University Press

The movement of the head in space is signaled by the vestibular apparatus, which is sensitive to linear and angular acceleration while movement of the head on the body is signaled by neck receptors. The movement of the head relative to the body produces proprioceptive signals from the neck. This chapter describes the tests of proprioceptive ability. One simple test is the accuracy in pointing to a remembered target without vision. Another measure of the ability is the threshold at which a little passive displacement can be detected. Two test conditions were used in this study: (1) with the body held stationary, small rotations of varying angular velocities and displacements were imposed on the head through a tightly fitted frame; and (2) with the head held stationary, rotations were imposed on the body.

Keywords:   proprioceptive signals, vestibular apparatus, neck receptors, passive displacement, head, space

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