Fig. S1.

Distributed source reconstruction of sensor-space effects overlaid onto a template brain (using data from all sensors, including EEG and MEG magnetometers and gradiometers). The upper and lower rows show lateral views of the left and right hemispheres, respectively. (A) Training phase. Red and blue colors indicate increases and decreases in source power for enhanced speech clarity ratings, respectively. (B) Pre- and posttest phases. Red and blue colors indicate increases and decreases in source power for enhanced speech recognition accuracy, respectively. ch, channels; M, matching; MM, mismatching.