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A systems model for the pupil size effect. I. Transient data.

F Sun·W C Krenz·L W Stark
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Abstract

The human pupillary control system is a paradigm for linearized biological control systems. It also exhibits a series of interesting nonlinear behaviors, particularly asymmetry, "pupillary escape," and "pupillary capture." We present a nonlinear model in which a signal dependent upon pupil size is fed back internally to cause a change in system parameters related to gains and rates of light adaptation. The model was simulated on a digital computer, a variety of experimental data was well matched, and improvements over previous pupil models demonstrated. A candidate physiological mechanism for adaptive components of the model might have the form of an inverse "Henneman coded" neuronal pool.

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AnimalsComputersHumansMathematicsModels, BiologicalPupilVision, OcularJournal ArticleResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, Non-P.H.S.

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F Sun, W C Krenz, L W Stark. 1983. A systems model for the pupil size effect. I. Transient data.. https://doi.org/10.1007/bf00344393

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