Figure 6.

An example of four single trials in 0° remembered, forgotten conditions and 180° remembered, forgotten conditions, respectively. A, Top, A bandpass filtered (1.5–9 Hz) single trial from auditory (blue) and visual (red) sources in 0° offset remembered condition. Amplitude was normalized. Bottom, Instantaneous phase difference between auditory and visual sources at a certain time point 1.5 s of the single trial is plotted on a unit circle (red line). Single-trial phase entrainment was calculated as the resultant vector length between the measured phase difference (red arrow) and the entrained phase offset 0° (black arrow), which was 0.9988 in this case. B, Same as in A but for 0° offset forgotten. C, Same as in A but for a 180° offset remembered trial. D, Same as in A but for a 180° offset forgotten trial.