Table 1.
Waveform Amplitude | A1 | A2 | A3 | A4 |
---|---|---|---|---|
Criterion for selection | peak between t = −0.6:−0.05 ms | trough between t = −0.25:0.25 ms | peak between t = 0.25:1 ms | trough between t = 1:3 ms |
Waveform Duration | W1*/W2*/W3* | D1 | D2 | D3 |
Criterion for selection | A2/A3/A4 | time in ms between A2 and A3 | time in ms between A3 and A4 | time in ms between A4 and return to baseline value A0** after A4 |
Waveform Slope | S1*** | S2*** | S3*** | S4*** |
Criterion for selection | A1 + (0.8 x A1) to A2 − (0.2 x A2) | A2 + (0.2 x A2) to A3 − (0.2 x A3) | A3 + (0.8 x A3) to A4 − (0.2 x A4) | A4 + (0.2 x A4) to Aend# − (0.2 x Aend) |
Top: Criteria for waveform amplitudes. Middle: Criteria for waveform durations. *Peak widths for W1, W2, W3 measured using scipy.signal.peak_widths with rel_height = 0.5. **A0—Baseline amplitude value—Amplitude value at time t = −0.6 ms. Bottom: Criteria for waveform slope. ***Slope of the line fit when waveform reaches amplitude value. #Aend is the amplitude value at time t = 3 ms.