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Cutoff SNRs and the corresponding SNR combinations used in each study task.
| Cutoff SNR | Dual-task paradigm | Speech recognition & vigilance tasks |
|---|---|---|
| −4 | −4, 0, +4 dB SNR | 0 |
| 0 | 0, +4, +8 dB SNR | +4 |
| +8 | +4, +8, +12 dB SNR | +8 |
Note. SNR = signal-to-noise ratio.
