Neural correlates of stereotype processing in major depressive disorder: An event-related potential study

Figure 1 Two examples of a trial sequence of the gender stereotype task. A: A trial sequence with female-biased sentence-female face; B: A trial sequence with female-biased sentence-male face. ITI: Inter-trial interval.

Figure 2 Reaction times between major depressive disorder group and healthy controls under different control conditions. MDD: Major depressive disorder; HCs: Healthy controls.

Figure 3 N170 amplitudes at P7 electrode. A: N170 amplitudes at P7 electrode of the major depressive disorder group under different control conditions; B: N170 amplitudes at P7 electrode of the healthy controls under different control conditions.

Figure 4 N170 amplitudes between male and female participants. A: Male and female participants for male bias-female face; B: Male and female participants for female bias-male face; C: The corresponding topographic map of Figure (A); D: The corresponding topographic map of Figure (B). The blue area indicates the time window that was used to inspect the N170 amplitude (130-230 milliseconds).

Figure 5 N400 amplitudes at healthy controls electrode. A: The major depressive disorder group and the healthy controls for female bias-male face; B: The major depressive disorder group and the healthy controls for male bias-female face; C: The corresponding topographic map of Figure (A); D: The corresponding topographic map of Figure (B). The blue area indicates the time window that was used to inspect the N400 amplitude (350-500 milliseconds). MDD: Major depressive disorder; HCs: Healthy controls.

Figure 6 Correlation analysis between clinical characteristics and N400 amplitude in the major depressive disorder group after the false discovery rate correction. Spearman correlation analysis between disease duration (months), Hamilton Depression Scale 24-item version scores, Hamilton Anxiety Rating Scale scores, and N400 amplitude. ^aP < 0.05. HDRS-24: Hamilton Depression Scale 24-item version; HAMA: Hamilton Anxiety Rating Scale.