Figure 13: The distribution of the number of normal (IN), stereo deficient (SD) and stereoblind (SB) subjects on the four binocular integration tests. For each test performance was broken down into percent integration categories. For the wheel test integration three categories were created, 0, 50 and 100% integration. For the other tests four categories were used: 0, 33.3, 66.7 and 100% integration.