Fig. 8
From: Visual motion thresholds mapped to midget and parasol ganglion cell topography in the human retina
Top: The sequence of frames in a trial depicting apparent motion cued by phase (a 90° shift in the phase of the carrier grating while the Gaussian window remained stationary). In this case, upwards motion was depicted in interval 1. Bottom: The sequence of frames in a trial depicting apparent motion cued by position (displacement of the Gaussian envelope while the carrier grating was simultaneously rotated by 90° to eliminate any possible phase cue). In this case, upward motion was depicted in interval 2.
