Table 2.

Mean time spent in each sleep stage during experiment 1 (nap study)

StimShamp Value
W7.42% (1.85)6.29% (1.73)0.49
N120.92% (2.96)20.92% (1.59)0.53
N230.77% (4.04)33.26% (4.19)0.57
SWS16.53% (2.73)18.45% (2.03)0.40
REM22.57% (6.91)21.01% (5.16)0.78
MA0.08% (0.08)0.07% (0.06)0.92
TST (mins)83.0 (9.60)79.3 (7.31)0.69
  • Sleep during daytime nap study is characterized with the average time spent in each sleep stage (mean ± SEM). The percentage of time spent in each condition (W, wake; N1, stage 1; N2, stage 2; MA, movement artifact) was similar during the stimulation period, demonstrating that stimulation did not disrupt sleep or increase the overall time spent in non-REM sleep.