Figure 6.

Evoked potentials from individual peri-Sylvian electrode sites in each of the nine subjects. Blue and red traces for a given frequency separation and subject indicate that the percept for that condition was bistable (*, this patient did not understand the task). Waveforms traced in black indicate that the percept for that condition was unstable. Electrode sites, shown in the top row over each subject's cortical reconstruction, were chosen based on their having the largest RMS power grand-average triplet-locked evoked response in the vicinity of the superior temporal gyrus. The frequency separation (ΔF, semitones) for each set of waveforms is indicated in the left-most column. The timing of individual tones in the triplet is shown in the bottom row.