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Spectral modulation detection thresholds, including mean, standard deviation (S.D.), mean + 2 standard deviations, median, and first (Q1) and third (Q3) quartiles.
| Modulation frequency (Hz) | Mean (dB) | S.D. (dB) | +2 S.D. (dB) | Median (dB) | Q1 (dB) | Q3 (dB) |
|---|---|---|---|---|---|---|
| 0.25 | 4.62 | 2.00 | 8.61 | 4.11 | 3.39 | 5.44 |
| 0.5 | 4.08 | 1.40 | 6.87 | 3.79 | 3.00 | 4.63 |
| 1.0 | 2.98 | 1.03 | 5.06 | 2.63 | 2.22 | 3.51 |
| 2.0 | 2.65 | 0.88 | 4.40 | 2.42 | 2.16 | 3.06 |
| 4.0 | 2.63 | 0.96 | 4.55 | 2.43 | 1.98 | 3.05 |
| 8.0 | 4.71 | 1.38 | 7.47 | 4.84 | 3.92 | 5.55 |
