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. 2014 Sep 1;8:157. doi: 10.3389/fnsys.2014.00157

Table 3.

Values of the control variables before and after early and late sleep.

Before After
Odor Placebo p Odor Placebo p
EARLY SLEEP
Objective vigilance (RT) 273.53 ± 10.34 267.90 ± 9.76 0.55 282.86 ± 15.30 271.92 ± 12.42 0.42
Cortisol level 2.75 ± 0.57 2.72 ± 0.36 0.97 3.24 ± 0.50 2.06 ± 0.36 0.08
LATE SLEEP
Objective vigilance (RT) 279.50 ± 13.45 275.57 ± 11.51 0.59 281.45 ± 13.42 276.02 ± 12.03 0.24
Cortisol level 7.04 ± 1.54 6.45 ± 1.13 0.67 13.65 ± 2.60 10.59 ± 2.26 0.38
Subjective sleepiness 3.08 ± 0.18 3.15 ± 0.19 0.78 3.31 ± 0.29 3.31 ± 0.35 >0.99
Odor detection level 8.92 ± 0.21 9.39 ± 0.27 0.17 8.77 ± 0.32 8.85 ± 0.34 0.82

Mean ± s.e.m. are indicated. Values for objective vigilance and cortisol measures are indicated for the measures before the first and second sleep period. Subjective sleepiness was measured before the first sleep period and in the morning after the second sleep period. Odor detection was measured before and after the second sleep period in which reactivation took place.