Table 3 Sleepiness. Reaction times (RTs) on a psychomotor vigilance task (PVT) and scores on the stanford sleepiness scale (SSS) at each test session for Days 1 and 2.

From: First-night effect reduces the beneficial effects of sleep on visual plasticity and modifies the underlying neurochemical processes

Measures

RT (log)

SSS scores

Test sessions

Pretraining

Posttraining

Postsleep

Pretraining

Posttraining

Postsleep

Day 1

2.52 ± 0.01

2.52 ± 0.01

2.49 ± 0.01

2 (1–2)

2 (1–3)

1 (1–2)

Day 2

2.51 ± 0.01

2.51 ± 0.01

2.51 ± 0.01

2 (1–2)

2 (1–2)

1 (1–2)

Z values

−1.396

−1.207

−1.491

0.000

−2.449

0.000

P values

0.163

0.227

0.136

1.000

0.014

1.000

  1. The RTs for PVT are presented as the mean ± SEM, and the SSS scores are presented as the median and range, along with the results of the wilcoxon signed-rank test (n = 17).
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