Table 3. Significant differences in interhemispheric coherence values between the two study groups according to frequency band and location (electrode pairs).
| Band and location | FASD group ( n = 81) | Control group ( n = 31) | p -Value | Cohen's d |
|---|---|---|---|---|
| Delta F3–F4 (µV 2 )/SD | 0.34 (0.13) | 0.41 (0.08) | <0.001 | 0.61 |
| Beta F3–F4 (µV 2 )/SD | 0.29 (0.1) | 0.40 (0.07) | <0.001 | 0.69 |
| Alpha T3–T4 (µV 2 )/SD | 0.33 (0.09) | 0.38 (0.06) | 0.01 | 0.59 |
| Theta T5–T6 (µV 2 )/SD | 0.30 (0.11) | 0.39 (0.1) | <0.001 | 0.83 |
| Significant differences in interhemispheric coherenc e values between children with FASD (excluding those with epilepsy/pathological EEG) and controls | ||||
| Band and location | FASD children ( n = 63) | Control group ( n = 31) | p -Value | Cohen's d |
| Delta F3–F4 (µV 2 )/SD | 0.34 (0.13) | 0.41 (0.08) | <0.001 | 0.63 |
| Beta F3–F4 (µV 2 )/SD | 0.30 (0.1) | 0.40 (0.07) | <0.001 | 1.12 |
| Alpha T3–T4 (µV 2 )/SD | 0.32 (0.07) | 0.38 (0.06) | 0.01 | 0.84 |
| Theta T5–T6 (µV 2 )/SD | 0.30 (0.12) | 0.39 (0.1) | <0.001 | 0.78 |
| Significant differences in interhemispheric coherence values between children with FASD (excluding those with epilepsy/pathological EEG/ADHD) and controls | ||||
| Band and location | FASD children ( n = 30) | Control group ( n = 31) | p -Value | Cohen's d |
| Beta F3–F4 (µV 2 )/SD | 0.31 (0.12) | 0.40 (0.07) | <0.001 | 0.89 |
| Alpha T3–T4 (µV 2 )/SD | 0.33 (0.07) | 0.38 (0.07) | <0.001 | 0.82 |
Abbreviations: ADHD, attention-deficit hyperactivity disorder; EEG, electroencephalography; F, frontal; FASD, fetal alcohol spectrum disorder; SD, standard division; T, temporal.
Note: t -test for equality of means, p -value 0.05; adjusted p -value 0.002 (Bonferroni correction).