Table 2.

p-values for tests of group differences across electrodes for the period 3–4 seconds post-stimulus onset (baseline-corrected by subtracting out the mean gamma power during the 1 second baseline period) and for the 1s baseline period (not baseline-corrected).

	1. 3-group ANOVA negative words — 3-4s	2. Depressed vs control on negative words – 3-4s	3. Schizophrenia vs control – 1s baseline period	4. 3-group ANOVA negative vs. neutral words – 3-4s	5. Schizophrenia sample bdi>15 vs. bdi<9 negative words – 3-4s	6. Schizophrenia sample bdi>15 vs. bdi<9 1s baseline period only
Fz	0.03	0.03	0.06	0.24	0.55	0.91
Cz	0.10	0.06	0.06	0.26	0.69	0.55
Pz	0.09	0.06	0.16	0.04	0.81	0.36
Oz	0.17	0.25	0.31	0.57	0.54	0.92
Fp1	0.15	0.14	0.38	0.53	0.04	0.79
F3	0.03	0.04	0.03	0.22	0.31	0.75
F7	0.07	0.11	0.02	0.27	0.97	1.00
C3	0.06	0.07	0.06	0.17	0.35	0.44
P3	0.07	0.06	0.14	0.10	0.75	0.68
T3	0.60	0.72	0.37	0.18	0.70	0.10
T5	0.11	0.08	0.15	0.54	0.95	0.66
O1	0.31	0.21	0.61	0.11	0.89	0.73
Fp2	0.06	0.05	0.08	0.88	0.13	0.32
F4	0.002	0.01	0.07	0.19	0.51	0.83
F8	0.04	0.05	0.33	0.83	0.03	0.77
C4	0.03	0.03	0.09	0.55	0.44	0.90
P4	0.06	0.07	0.23	0.04	0.57	0.89
T4	0.18	0.22	0.52	0.08	0.32	0.35
T6	0.05	0.09	0.52	0.10	0.46	0.46
O2	0.23	0.17	0.43	0.62	0.92	0.46
# electro-des p<.1	13	13	8	5	2	1

Bold = values significant at p<.0025, which represents a significant result at that electrode at p<.05 after accounting for multiple tests across electrodes

Italic = values significant at p<.1. Monte Carlo simulations suggested that for these data, 4 electrodes significant at p<.1 were needed to suggest there were reliable differences between groups at a level of p<.05.