TABLE I.
Task-Specific Neural Biomarkers Integrated on the SoC
| Epileptic Seizure | Description |
|---|---|
| Line-Length | Average of absolute temporal derivative |
| Hjorth Activity | Variance of signal |
| Delta Energy | Spectral energy in 1–4 Hz |
| Theta Energy | Spectral energy in 4–8 Hz |
| Alpha Energy | Spectral energy in 8–13 Hz |
| Beta Energy | Spectral energy in 13–30 Hz |
| Low-Gamma Energy | Spectral energy in 30–50 Hz |
| Gamma Energy | Spectral energy in 50–80 Hz |
| High-Gamma Energy | Spectral energy in 80–150 Hz |
| Ripple Energy | Spectral energy in 150–250 Hz |
| Phase-Amplitude Coupling | Coupling of the phase in 4–8 Hz to the amplitude envelope in 80–150 Hz |
| Phase Locking Value | Synchronization between two-channel phases in 13–30 Hz |
| Parkinsonian Tremor | Description |
|
| |
| Hjorth Activity | Variance of signal |
| Hjorth Mobility | Mean frequency of signal |
| Hjorth Complexity | Change in signal frequency |
| Tremor Energy | Spectral energy in 1–4 Hz |
| Beta Energy | Spectral energy in 13–30 Hz |
| Low-Gamma Energy | Spectral energy in 30–45 Hz |
| Gamma Energy | Spectral energy in 60–90 Hz |
| High-Gamma Energy | Spectral energy in 100–200 Hz |
| Slow High-Frequency Oscillation | Spectral energy in 200–300 Hz |
| Fast High-Frequency Oscillation | Spectral energy in 300–400 Hz |
| High-Frequency Oscillation Ratio | Ratio of the energy in 200–300 Hz to the energy in 300–400 Hz |
| Phase-Amplitude Coupling | Coupling of the phase in 13–30 Hz to the amplitude envelope in 150–400 Hz |
| Finger Movement | Description |
|
| |
| Local Motor Potential | Mean value of signal |
| Hjorth Activity | Variance of signal |
| Hjorth Mobility | Mean frequency of signal |
| Hjorth Complexity | Change in signal frequency |
| Alpha Energy | Spectral energy in 8–13 Hz |
| Beta Energy | Spectral energy in 13–30 Hz |
| Low-Gamma Energy | Spectral energy in 30–60 Hz |
| Gamma Energy | Spectral energy in 60–100 Hz |
| High-Gamma Energy | Spectral energy in 100–200 Hz |