QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

HOME  |   SEARCH  |   ARCHIVE  |   SUBSCRIBE  |   CONTACT  |   HELP

The Journal of Neuroscience, March 8, 2006, 26(10):2732-2737; doi:10.1523/JNEUROSCI.3610-05.2006

This Article Full Text Full Text (PDF) Submit an eLetter Alert me when this article is cited Alert me when eLetters are posted Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in ISI Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (10) Citing Articles via Google Scholar Google Scholar Articles by Klier, E. M. Articles by Angelaki, D. E. Search for Related Content PubMed PubMed Citation Articles by Klier, E. M. Articles by Angelaki, D. E.

 Previous Article  |  Next Article 

Behavioral/Systems/Cognitive
Three-Dimensional Kinematics at the Level of the Oculomotor Plant

Eliana M. Klier, Hui Meng, and Dora E. Angelaki

Department of Anatomy and Neurobiology, Washington University School of Medicine, St. Louis, Missouri 63110

Correspondence should be addressed to Dr. Eliana M. Klier, Department of Anatomy and Neurobiology, Washington University School of Medicine, Box 8108, 660 South Euclid Avenue, St. Louis, MO 63110. Email: eliana{at}cabernet.wustl.edu

Motor systems often require that superfluous degrees of freedom be constrained. For the oculomotor system, a redundancy in the degrees of freedom occurs during visually guided eye movements and is solved by implementing Listing’s law and the half-angle rule, kinematic constraints that limit the range of eye positions and angular velocities used by the eyes. These constraints have been attributed either to neurally generated commands or to the physical mechanics of the eye and its surrounding muscles and tissues (i.e., the ocular plant). To directly test whether the ocular plant implements the half-angle rule, critical to the maintenance of Listing’s law, we microstimulated the abducens nerve with the eye at different initial vertical eye positions. We report that the electrically evoked eye velocity exhibits the same eye position dependence as seen in visually guided smooth-pursuit eye movements. These results support an important role for the ocular plant in providing a solution to the degrees-of-freedom problem during eye movements.

Key words: eye; torsion; muscles; pulleys; Listing’s law; pursuit

---

Received Aug. 25, 2005; revised Jan. 18, 2006; accepted Jan. 25, 2006.

Correspondence should be addressed to Dr. Eliana M. Klier, Department of Anatomy and Neurobiology, Washington University School of Medicine, Box 8108, 660 South Euclid Avenue, St. Louis, MO 63110. Email: eliana{at}cabernet.wustl.edu

This article has been cited by other articles:

				F. F. Ghasia, H. Meng, and D. E. Angelaki Neural Correlates of Forward and Inverse Models for Eye Movements: Evidence from Three-Dimensional Kinematics J. Neurosci., May 7, 2008; 28(19): 5082 - 5087. [Abstract] [Full Text] [PDF]

				M. Fesharaki, P. Karagiannis, D. Tweed, J. A. Sharpe, and A. M. F. Wong Adaptive Neural Mechanism for Listing's Law Revealed in Patients with Skew Deviation Caused by Brainstem or Cerebellar Lesion Invest. Ophthalmol. Vis. Sci., January 1, 2008; 49(1): 204 - 214. [Abstract] [Full Text] [PDF]

				T. Tchelidze and B. J. M. Hess Noncommutative Control in the Rotational Vestibuloocular Reflex J Neurophysiol, January 1, 2008; 99(1): 96 - 111. [Abstract] [Full Text] [PDF]

				K.-M. Lee, A. P. Lai, J. Brodale, and A. Jampolsky Sideslip of the Medial Rectus Muscle during Vertical Eye Rotation Invest. Ophthalmol. Vis. Sci., October 1, 2007; 48(10): 4527 - 4533. [Abstract] [Full Text] [PDF]

				N. F. Lepora, E. Mavritsaki, J. Porrill, C. H. Yeo, C. Evinger, and P. Dean Evidence From Retractor Bulbi EMG for Linearized Motor Control of Conditioned Nictitating Membrane Responses J Neurophysiol, October 1, 2007; 98(4): 2074 - 2088. [Abstract] [Full Text] [PDF]

				C. R. Cassanello and V. P. Ferrera Computing vector differences using a gain field-like mechanism in monkey frontal eye field J. Physiol., July 15, 2007; 582(2): 647 - 664. [Abstract] [Full Text] [PDF]

				K. H. Lim, V. Poukens, and J. L. Demer Fascicular Specialization in Human and Monkey Rectus Muscles: Evidence for Anatomic Independence of Global and Orbital Layers Invest. Ophthalmol. Vis. Sci., July 1, 2007; 48(7): 3089 - 3097. [Abstract] [Full Text] [PDF]

				M. F. Walker, J. Tian, and D. S. Zee Kinematics of the Rotational Vestibuloocular Reflex: Role of the Cerebellum J Neurophysiol, July 1, 2007; 98(1): 295 - 302. [Abstract] [Full Text] [PDF]

				B. T. Crane, J.-R. Tian, and J. L. Demer Shifts in Listing's Plane Produced by Vertical Axis Rotation: Sustained Ocular Torsion Due to Semicircular Canal Stimulation Invest. Ophthalmol. Vis. Sci., May 1, 2007; 48(5): 2076 - 2083. [Abstract] [Full Text] [PDF]

				A. M. Green, H. Meng, and D. E. Angelaki A Reevaluation of the Inverse Dynamic Model for Eye Movements J. Neurosci., February 7, 2007; 27(6): 1346 - 1355. [Abstract] [Full Text] [PDF]

				E. M. Klier, H. Wang, and J. D. Crawford Interstitial Nucleus of Cajal Encodes Three-Dimensional Head Orientations in Fick-Like Coordinates J Neurophysiol, January 1, 2007; 97(1): 604 - 617. [Abstract] [Full Text] [PDF]

Home  |   Search  |   Archive  |   Subscribe  |   Contact  |   Help