29 December 1977 The Other Role Of Vergence Eye Movements
Author Affiliations +
The role of eye-movements in stereoscopic perception of space, other than that of bi-foveal fixation of the object of regard, is discussed. First, it is shown that global fusion and bi-foveal fixation are demonstrably different responses; in pursuit of global fusion, the angle of convergence may be so changing as to shift the intersection of the two visual axes towards a point in space where no object is to be found. Second, a highly accurate change of vergence in tracking an object moving in depth does not, in itself, produce perception of object motion; a certain critical change in vergence must be required, to initiate perceived motion. This "program newness", expressed in terms of a fast retinal image displacement producing a step in retinal disparity, equals, at least, 2 min arc per 0.1 sec of vergence reaction time. A hypothesis is advanced, in the general framework of prediction-oriented theories of perception, to interpret vergence eye-movements as also a means of neutralization of the input "unwanted" by the visual system.
© (1977) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alexander I. Cogan, Alexander I. Cogan, } "The Other Role Of Vergence Eye Movements", Proc. SPIE 0120, Three-Dimensional Imaging, (29 December 1977); doi: 10.1117/12.955752; https://doi.org/10.1117/12.955752


Visual Issues In The Use Of A Head Mounted Monocular...
Proceedings of SPIE (October 31 1989)
Regularization model of human binocular vision
Proceedings of SPIE (March 10 2005)
Building 3D scenes from 2D image sequences
Proceedings of SPIE (June 08 2006)
Perception of 3D scenes from pictures
Proceedings of SPIE (July 16 1998)
Objective evaluation of 3 D wide field effect by human...
Proceedings of SPIE (August 26 1992)
Visual aspects of picture storage
Proceedings of SPIE (February 28 1991)
Stereoscopic Displays And The Human Dual Visual System
Proceedings of SPIE (May 04 1986)

Back to Top