Table 2.
Description of data sets used in the study.
| Data set | Type | Subjects | Age (median) | Gender (Male/Female) | Reference electrode | Notch frequency (country) | Sampling rate |
|---|---|---|---|---|---|---|---|
| 1 | Reference (Healthy) | 1 | 35 years | 1/0 | Mastoid | 50 Hz (India) | 250 Hz |
| 2 | Neonates | 79 | 36–45 weeks (41 weeks) | 42/35 | Midline | 50 Hz (Finland) | 256 Hz |
| 3 | Healthy | 201 | 20–35 years (24 years) and 59–77 years (67 years) | 128/73 | FCz | 50 Hz (Germany) | 2500 Hz |
| 4a | Abnormal morphology | 893 | 5 days–96 years (55 years) | 439/454 | Average | 60 Hz (USA) | 250–512 Hz |
| 4b | Normal morphology | 1237 | 28 days–95 years (44 years) | 546/691 | Average | 60 Hz (USA) | 250–512 Hz |
| 5 | Long term (Epilepsy) | 22 | 1.5–22 years (10.5 years) | 5/16 | FT10 | 60 Hz (USA) | 256 Hz |
54 subjects are common between data sets 4a and 4b.