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Neurological Control Systems pp 271–295Cite as

Variable Feedback Experiments

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Abstract

The eye movement control system may be considered as a closed-loop servomechanism with unit visual negative feedback from the eye position to the observed error at the retina. As drawn schematically in Fig. 26 (top), the controller acts on the observed error in eye position, or the difference between the angular position of the target and that of the eye. Since the object of this research was to study and describe the operation of the error sensor, controller, and load dynamics, it was designed to study the system operation in the absence of the visual feedback [80]. The feedback path is an inherent part of the system, however, since rotation of the eye displaces the target image on the retina. It could be eliminated only by physically opening the control loop; for example, by mechanically restraining the eyes from moving and observing the torque exerted by the muscles.

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  1. University of California, Berkeley, USA

    Lawrence Stark M.D. (Professor of Physiological Optics)

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Stark, L. (1968). Variable Feedback Experiments. In: Neurological Control Systems. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-0706-8_13

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  • DOI: https://doi.org/10.1007/978-1-4684-0706-8_13

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