A control model of eye movement

The model of the oculomotor system that presented concentrates upon the horizontal version eye tracking system. The major objective of the work here is to incorporate the known actuation and musculotendon dynamics into the plant model of the eye. In particular, the muscle model that is utilized is a two-component version of a Hill type model that consists of a passive and active contractile components. The approach presented allows for the inclusion of very general force-velocity and force-length characteristics in the active component. Furthermore, the model developed allows one to distinguish between the elastic and viscous effects in the muscle actuator that are neurologically controlled and those that are due to the passive structure of the actuator. In this paper, attention is focused upon saccadic eye movements. The eye model described includes activation dynamics that couple neural controls which are appropriate for saccadic movements to the muscle mechanics.