Table 3 Sample sizes and number of functional magnetic resonance imaging (fMRI) volumes used in comparisons of functional connectivity (FC) between stages.

From: Reversed and increased functional connectivity in non-REM sleep suggests an altered rather than reduced state of consciousness relative to wake

Comparison

N/number of fMRI volumes

Wake

NREM2

SWS

REM

Primary analysis

33/150

24/150

9/133

6/129

Between-stage FC comparisons presented in Supplemental Figs. S1and S2

Wake vs. NREM2

33/150

24/150

  

Wake vs. SWS

33/133

 

9/133

 

Wake vs. REM

33/129

  

6/129

NREM2 vs. SWS

 

26/133

9/133

 

NREM2 vs. REM

 

26/129

 

6/129

SWS vs. REM

  

9/129

6/129

  1. REM rapid eye movement, NREM2 non-REM stage 2, SWS slow wave sleep.