Title: A Control System of Voluntary Eye Movement in Tracking a Visual Target
Abstract: A model of a control system for voluntary eye movement in tracking a visual target is presented. Using this model, the conditions which will elicit certain types of eye movement can be determined. Therefore, the phenomena of smooth pursuit, saccadic, or a combination of smooth pursuit and saccadic eye movement in tracking a target can also be predicted. The control system consists of four functional elements: the ‘programming,’ ‘monitoring,’ ‘sampling,’ and ‘switching’ functions. The predictive mechanism is organized by the programming, monitoring, and sampling functions. The model suggests that the visual image of a moving target on the retinal coordinate system alone is not sufficient to explain voluntary eye movement. It is the visual image of a moving target on the head coordinate system that plays an important role in controlling voluntary eye movement in tracking a target. Some characteristics of smooth pursuit and saccadic eye movements predicted by the control system correspond qualitatively to experimental results in tracking a target, and these validate our model.
Publication Year: 1994
Publication Date: 1994-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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