Table I.
Cross‐frequency coupling
| Seed region/band | Significant correlations | Groups |
|---|---|---|
| MPFC, 8–14 Hz | 4–7 Hz, LIPL | MP, C |
| 4–7 Hz, PCC | MP, UMP, C | |
| 14–30 Hz, LIPL | MP, UMP, C | |
| 14–30 Hz, PCC | MP, UMP | |
| 14–30 Hz, RIPL | MP, UMP, C | |
| 30–56 Hz, LIPL | MP | |
| 30–56 Hz, PCC | MP | |
| MPFC, 14–30 Hz | 4–7 Hz, LIPL | MP |
| 4–7 Hz, PCC | MP | |
| 8–14 Hz, LIPL | MP, UMP, C | |
| 8–14 Hz, PCC | MP | |
| 8–14 Hz, RIPL | MP, C | |
| 30–56 Hz, PCC | UMP | |
| MPFC, 64–82 Hz | 30–56 Hz, PCC | UMP |
| 184–228 Hz, RIPL | UMP | |
| MPFC, 124–168 Hz | 64–82 Hz, PCC | UMP |
| MPFC, 184–228 Hz | 64–82 Hz, PCC | UMP |
MPFC: medial prefrontal cortices; PCC: posterior cingulate/precuneus; LIPL: left inferior parietal; RIPL: right inferior parietal; MP: medicated ADHD patient; UMP: unmedicated ADHD patient; C: healthy adult control.
No significant cross‐frequency correlations were observed for MPFC activity at 1–4, 4–7, 30–56, or 82–106 Hz.
All correlations were significant at P < 0.001.