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. Author manuscript; available in PMC: 2014 Mar 13.
Published in final edited form as: Int J Psychophysiol. 2009 Dec 11;75(2):107–118. doi: 10.1016/j.ijpsycho.2008.04.008

Figure 4.

Figure 4

Mean EEG gamma power (35–45 Hz) over time for age-matched subsamples in each group in response to negative words. Periods of significant differences between groups are highlighted below the x-axis (yellow (light gray in black/white): p<0.1; red (dark gray in black/white): p<0.05). a. Scalp map for three group ANOVA (control, depression, schizophrenia) 3–4 seconds after stimulus offset minus a pre-stimulus baseline. B–D. Two-group contrast maps analogous to those in Figure 1. Whiter values represent lower p-values. Depressed individuals displayed increased high-frequency activity compared to the other groups throughout the scalp.