Contribution of Skeletal and Extraocular Proprioception to Kinaesthetic Representation

2018 ◽  
pp. 549-566
Author(s):  
J. P. Roll ◽  
J. C. Gilhodes ◽  
R. Roll ◽  
J. L. Velay
Author(s):  
R. John Leigh ◽  
David S. Zee

This chapter reviews contributions of orbital tissues and extraocular muscles (EOM) to the control of eye movements. The anatomy of the orbit, fascia, fibromuscular pulleys, and EOM are described and related to the kinematics of 3-D eye rotations. Current concepts of the embryology of the EOM and their unique and diverse characteristics are described, suggesting why they are more vulnerable to certain neuromuscular disorders and less susceptible to others, compared with skeletal muscles. Electrophysiological properties of different EOM fiber types (and their motor neuron innervation) are contrasted, describing new models that attempt to account for nonlinear mechanical properties of the orbit. The substrate and roles of extraocular proprioception in the control of eye movements are summarized and related to clinical disorders affecting EOM. The anatomy of the cranial nerves supplying the EOM is summarized, diagrammed and highlighted to aid diagnosis of common palsies of the oculomotor, trochlear, and abducens nerves.


1960 ◽  
Vol 198 (5) ◽  
pp. 945-948 ◽  
Author(s):  
Jane E. Hyde ◽  
Lois M. Davis

Ocular movements evoked by stimulation of brain-stem sites in the feline encéphale isolé have been analyzed in an attempt to demonstrate an extraocular proprioceptive mechanism. Procedures designed to reduce extraocular proprioceptive input to the central nervous system included tenotomy of the muscles of one eye, procaine block of one or both Gasserian ganglia, and acute cerebellectomy. None of these procedures resulted in a consistent alteration in accuracy of the induced oculomotor responses. Immobilization of one eye, however, significantly reduced the accuracy of the freely moving eye in assuming the same final position with repeated stimulation of one site. All procedures tested, including occipital lobectomy, resulted in a significant shift of the final position reached by the eyes in response to repeated stimulation of one site. While the shift, unlike the decrease in accuracy seen with immobilization, cannot be interpreted as evidence for an extraocular proprioceptive mechanism, it is discussed with reference to the significance of the ‘goal’ position obtained by repeated stimulation of one site at constant stimulus parameters.


Neuroreport ◽  
1990 ◽  
Vol 1 (3) ◽  
pp. 187-190 ◽  
Author(s):  
Yves Trotter ◽  
Simona Celebrini ◽  
Jean Christophe Beaux ◽  
Bernard Grandjean

Neuroreport ◽  
1996 ◽  
Vol 7 (9) ◽  
pp. 1531-1535 ◽  
Author(s):  
Jocelyne Ventre-Dominey ◽  
Peter F. Dominey ◽  
Marc Sindou

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