Table 1.
Group Differences in Regional Gamma Activity
| Frequency | Region | t-value | p-value |
|---|---|---|---|
| Low Gamma (30–56 Hz) | ACC | 2.94 | p < 0.01 |
| L Anterior FC | 2.73 | p < 0.01 | |
| R Anterior FC | 3.04 | p < 0.01 | |
| LPFC | 3.28 | p < 0.01 | |
| SMA | 2.80 | p < 0.01 | |
|
| |||
| Mid Gamma (64–82 Hz) | ACC | 2.81 | p < 0.01 |
| L Anterior FC | 2.68 | p = 0.01 | |
| R Anterior FC | 2.78 | p < 0.01 | |
| LPFC | 3.25 | p < 0.01 | |
|
| |||
| High Gamma (82–106 Hz) | ACC | 2.86 | p < 0.01 |
| L Anterior FC | 2.76 | p < 0.01 | |
| R Anterior FC | 2.84 | p < 0.01 | |
| LPFC | 3.33 | p < 0.01 | |
| SMA | 2.87 | p < 0.01 | |
All statistical results reflect control group > un-medicated patient group
ACC = anterior cingulate cortex; L Anterior FC = left anterior frontal cortices; R Anterior FC = right anterior frontal cortices; LPFC = left prefrontal cortex; SMA = supplementary motor area