ABSTRACT Time differences between the two eyes in paired pursuit and saccadic movements were measured by laboratory computer methods under variable conditions of visual perception. In keeping with assumptions of a neuronic feedback view, significant time differences were found between both paired binocular pursuit (35–50 msccs) and paired binocular saccadic movements (1‐5 msecs). The direction of these time lags varied with conditions and direction of vision, although the magnitudes of the time differences were not increased. The results indicate that the eyes are not exactly conjugate in binocular space perception, as claimed in the classical theory of Helmholtz, but depend on variable feedback timing and synchronization for their control. The real‐time computer methods devised create many possible new lines of studying synchronism and coordination of both ocular and other types of body movements and physiological functions on a systems basis.
Smith et al. (Tue,) studied this question.
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