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Equidistance settings were obtained from 50 Os with a Howard-Dolman type apparatus which was either stationary or rotating about O at angular speeds of 60 to 180 deg/sec. The correlation between the settings decreased as the disparity of the speeds being compared increased, and there was a sharp drop in correlation between the stationary condition and any speed. At any speed of rotation, there was an increase in the variability of the settings as viewing time decreased and a sharp increase below .3 sec. A positive localization error was made by 24 Os and a negative error was made by 26 Os. There appears to be a relationship between positive errors and exophoria and between negative errors and esophoria.

Weissman, Seymour,, "Effects of visual cues on the standing body sway of males and females

Equidistance settings were obtained from SO Os with a Howard-Dolman type apparatus which was either stationary or rotating about O at angular speeds of 60 to 180 deg/sec. The correlation between the settings decreased as the disparity of the speeds being compared increased, and there was a sharp drop in correlation between the stationary condition and any speed. At any speed of rotation, there was an increase in the variability of the settings as viewing time decreased and a sharp increase below .3 sec. A positive localization error was made by 24 Os and a negative error, was made by 26 Os. There appears to be a relationship between positive errors and exophoria and between negative errors and esophoria.