Laptev, Dmitry, Akman, Ozgur E. and Clement, Richard A.. (2006) Stability of the saccadic oculomotor system. Biological Cybernetics, Volume 95 (Number 3). pp. 281-287. ISSN 0340-1200

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Abstract

A variety of different types of instability has been found in the saccadic system of humans. Some of the instabilities correspond to clinical conditions, whereas others are inherent in the normal saccadic system. How can these instabilities arise within the mechanism of normal saccadic eye movements? A physiologically-based model of the saccadic system predicts that horizontal saccadic oscillations will occur with excessive mutual inhibition between the left and right burst cells and with underaction of the pause cells. The amplitudes and frequencies of the oscillations had ranges of 0-6 degrees and 6-20 cycles per second, respectively. Application of stability analysis techniques to the model reveals that development of the oscillations can be explained by the Hopf bifurcation mechanism. Future development of this approach will involve classifying pathological instabilities of the saccadic system according to the bifurcation involved in their generation.

Item Type:	Journal Article
Subjects:	Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Divisions:	Faculty of Science > Mathematics
Journal or Publication Title:	Biological Cybernetics
Publisher:	Springer
ISSN:	0340-1200
Official Date:	September 2006
Volume:	Volume 95
Number:	Number 3
Number of Pages:	7
Page Range:	pp. 281-287
Identification Number:	10.1007/s00422-006-0087-3
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
URI:	http://wrap.warwick.ac.uk/id/eprint/33157

Data sourced from Thomson Reuters' Web of Knowledge

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