Figure 4

Phase differences between temporal integration and segregation and modulation of task accuracy as a function of the entrainment frequency. (A) Raw data centered on the mean for segregation (upper plot) and integration (lower plot) as a function of the entrainment frequency. (B) Raw data centered on the mean for IAF − 2 Hz entrainment (upper plot) and IAF + 2 Hz entrainment (lower plot) as a function of the task condition. In both (A) and (B) data were averaged across participants, with shaded area representing the SEM. (C) Phase distribution histogram of perceptual oscillations aligned to the IAF + 2 Hz (left plot) or IAF − 2 Hz (right plot) frequency, showing in both cases a significant phase difference between tasks as measured by the circular Watson-Williams test (ticker lines represent the mean phase angle across participants for integration or segregation). (D) Raw data averaged across participants (error bars represent the SEM) and in subsequent temporal bins (0–100 ms, 100–200 ms and 200–300 ms) as a function of entrainment frequency and task condition (*p < 0.05 and **p < 0.01, one tail t-test).