[Figure 4 here]
Figure 4. ERPs at electrode Fz. Shaded area represents MMN peak
amplitudes for Happy (top), Angry (bottom left), Neutral (bottom right)
and Cartoon (dashed) Faces with ERPs shown for PLC (blue), MA (red),
MDMA (green) sessions. MDMA and MA did not affect the peak amplitude of
MMN however MMN was present for human faces compared to cartoon faces.
Furthermore, MMN was not affected by the emotion of the face
shown.