Fig. 3. Correlation of audiovisual MMN amplitude and behavioral audiovisual
integration response for individual subjects. X-axis represents mean amplitude of
the McGurk-MMN (difference wave) at electrode Fz. Y-axis represents the strength
of the McGurk illusion measured as the percentage of incorrect responses in the
incongruent condition minus the percentage of incorrect responses in the congruent
condition. The dashed line indicates a threshold for the strength of the
McGurk illusion. The McGurk-MMN is consistently negative above this threshold
while very variable below the threshold.