Individual subject data for 1s, 4s, and 8s PSE trials.

<p>Counterclockwise visual field motion (VFM) represented with filled circles, clockwise VFM with open squares. A positive PSE indicates that a neutral motion would be more likely to be perceived as clockwise self-motion, likewise a negative PSE indicates a neutral motion would be perceived as counterclockwise. Error bars represent 95% CI.