| EEG changes | No. | % | |
| EEG | Normal | 22 | 44% |
| Abnormal | 28 | 56% | |
| Background | Low voltage | 13 | 26.0% |
| Normal | 37 | 74.0% | |
| Discharges | No | 22 | 44.0% |
| Polyspikes | 2 | 4.0% | |
| Sharp waves | 11 | 22.0% | |
| Spikes | 15 | 30.0% | |
| Site | Centroparital | 12 | 24.0% |
| Frontotempotal | 10 | 20.0% | |
| Multifocal | 6 | 12.0% | |
| No | 22 | 44.0% | |
| Side | Left side | 13 | 26.0% |
| No | 22 | 44.0% | |
| Right side | 15 | 30.0% | |