Figure 6.

Perceptual phase entrainment depends on intelligibility. A, Statistical significance of perceptual phase entrainment in Experiment 3, corresponding to Figure 4B (for ease of comparison, results from Experiment 1 are also shown). The modulation of click detection by original envelope phase is significant (between 280 and 200 ms before tone-pip onset) for the forward condition (blue line; replicating the effect from Experiment 1, shown in black), but not for the backward condition (red line), indicating that the observed perceptual phase entrainment depends on intelligibility. Significance threshold is FDR-corrected and shown as a dotted line. B, Tone-pip detection probability as a function of the original signal envelope at −230 ms with respect to tone-pip onset. Note the sinusoidal modulation of performance for the forward condition, which is absent for the backward condition. This modulation has a similar degree and a similar phase as in Experiment 1, indicating that the effect could indeed be replicated. SEM is shown by contours around the lines.