The Stereolocalization ability of fifty subjects was assessed using a Quoits Variable Vectographic Target. Measurements of stereolocalization were taken at seven different disparity settings. Subject accuracy under crossed and uncrossed conditions was compared as well as a con1parison of empirical and theoretical localizations for each disparity. It was found that under all conditions subjects were accurate to within 1% or less of the mathematically derived location of the image. There was also found to be a statistically significant difference between two of the matched crossed and uncrossed disparity responses/ but the differences were probably clinically insignificant.
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