Perceptual Consequences of Experimental Extraocular Muscle Paralysis
When we change our direction of gaze from one point to another in the visual field, the positions of images on our retinas are changed correspondingly. Nevertheless, we do not normally see any movement or displacement of the visual field or of objects in the field, as we do when the direction of gaze is held steady and either the entire field or objects within it are moved. Several important aspects of the question regarding how stability of our perception of space is maintained when we turn our eyes have recently been clarified by our observations and measurements of the “oculoparalytic illusion.” The main findings leading to the clarification have been reported elsewhere (Matin, Picoult, Stevens, Edwards, Young, & MacArthur, 1980, 1982). In this chapter we show how these results yield an important aspect of the solution.
KeywordsRetina Assure Nism Clarification
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- Brindley, G. S., Goodwin, G. M., Kulikowski, J. J. & Leighton, D. Stability of vision with a paralyzed eye. Journal of Physiology, 1976, 258, 65–66.Google Scholar
- Goodman, L. S., & Gilman, A. The pharmacological basis of therapeutics (5th ed.). New York: Macmillan, 1977.Google Scholar
- Helmholtz, H. von. [A treatise on physiological optics, (Vol. 3).] (J. P. C. Southall, Ed. and trans.). New York: Dover, 1962, (Originally published, 1866).Google Scholar
- Kornmuller, A. E. Eine experimentelle Anesthesie der auberen Augenmuskein am Menschen und ihre Auswirkungen. Journal für Psychologie und Neurologie, 1930, 41, 354–366.Google Scholar
- Matin, L. Eye movements and perceived visual direction. In D. Jameson & L. Hur-vich (Eds.), Handbook of sensory physiology (Vol. VII, Part 4). Heidelberg: Springer-Verlag, 1972, pp. 331–380.Google Scholar
- Matin, L. Suppression of the use of extraretinal eye position information (EEPI) for visual localization is normal in normally illuminated visual fields. April Supp. Investigative Ophthalmology and Visual Science (Suppl.), April 1981,20, 55.Google Scholar
- Matin, L. Visual localization and eye movements. In A. H. Wertheim, W. A. Wage-naar, & H. W. Leibowitz (Eds.), Tutorials on motion perception. New York: Plenum Press, 1982.Google Scholar
- Matin, L., Picoult, E., Stevens, J. K., Edwards, M. W., Jr., Young, D., & Marthur, R. Visual context dependent mislocalizations under curare-induced partial paralysis of the extraocular muscles. Investigative Ophthalmology and Visual Science (Suppl.), April 1980,19, 81.Google Scholar