Figure 4

Grand-averaged ERP waveform and Topographic maps of N100 and P200 at 100 ms, 200 ms between MDD and HC. (A) Group-averaged ERP waveform relative to N100, P200 components elicited by Emotional-Neutral facial compound stimuli (Sad-Neutral, Fear-Neutral and Happy-Neutral) at Fz, Cz sides between MDD patients and HC at 100 ms and 200 ms. (B) Scalp topography of N100 and P200 ERP components generated by Happy-Neutral, Fear-Neutral and Sad-Neutral facial compound stimuli pairs at 100 ms and 200 ms with peak surface potentials (µV) between MDD patients and HC. MDD: Major Depressive Disorder; HC: Healthy Control.