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.
KeywordsMedian Plane Perceptual Consequence Fixation Target Visual Localization Auditory Localization
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