TABLE II.
Total number of event-related shifts to lighter sleep stage, arousals, and awakenings across all participants each study night.
| Response | “Phantom” trains (52) | Event-related reactions | |||
|---|---|---|---|---|---|
| Control | N36 | V36 | NV36 | NV52 | |
| Total arousals (n) | 124 | 132 | 101 | 159 | 190 |
| Total awakenings (n) | 36 | 48 | 59 | 47 | 72 |
| Total EEG reactions (n) | 160 | 180 | 160 | 206 | 262 |
| Total SSCs (n) | 129 | 127 | 109 | 155 | 207 |
SSC: Sleep stage changes. V36: Vibration only, 36 trains. N36: Noise only, 36 trains. NV36: Noise and vibration, 36 trains. NV52: Noise and vibration, 52 trains.