Figure 3.

(a) Interocular display mode; interocular-presentation paradigm. Alternative frames of a five frame display are directed to the left or right eye. From frame-to-frame, there is a 90-degree phase shift to the right. Successive frames in each individual eye have a 180-degree phase shift and therefore contain no motion–direction information. (b) Sensitivity (1/threshold) as a function of temporal frequency in both monocular and interocular display modes for two observers. The sensitivity is normalized for each observer by using the minimum threshold in both monocular and interocular conditions. For both observers, there is no significant difference between the two display modes.