Illustration of the applied cross correlation analysis.

<p>A: Peristimulus time histograms (PSTH) showing the average saccade (top) and switch (bottom) rates as a function of time relative to stimulus onset together with PSTHs of the auditory cues (center, gray line). B: Raw cross correlation between saccades and perceptual switches (gray) together with the shift-predictor (black). Data were normalized according to the total number of percept switches such that the vertical axis represents the conditional saccade rate (in saccades per second) as a function of time relative to the button press. C: Covariogram. Corrected cross-correlation histogram obtained by subtracting the shift-predictor from the raw cross correlogram. Data from subject DB. Large saccades (>1°), percept switches from left to right eye.