Fig. 3.

Comparison of responses to surface stimuli obtained under BE- and NE-viewing conditions. y-axis, Responses obtained while BE-viewing; x-axis, those obtained while NE-viewing. Each symbol represents a cell; solid symbols represent cells that responded to the surface stimulus during BE-viewing, whereas open symbols represent those that did not. Squaresrepresent cells whose responses were tested monocularly during NE-viewing; circles represent those tested binocularly during NE-viewing. Broken lines indicate where the response magnitudes are zero. The diagonal lineindicates the points at which responses obtained under the different conditions are the same.