Table 3.

Correlations with polysomnography-based sleep variables

Variables	1c	2	3
1. Eveningness (CSM)c	-
2. rCMRglu - brainstem - WAKE	.59***,†	—
3. rCMRglu - brainstem - REM	.70***,†	.79***,†	—
4. Sleep latencya	.43**	.51**,†	.47**
5. Wake after sleep onsetb	−.14	−.35*	−.32
6. Total sleep time	−.02	−.18	−.21
7. REM latency	−.02	−.11	−.11
8. REM fragmentation	−.36*	−.20	−.12
9. REM density	.26	.41*	.62**,†

^aLn-transformed;

^bSqrt-transformed

^cNote that the sign of correlations with the Composite Scale of Morningness are reversed to ease interpretation (positive values now indicate positive correlations with eveningness)

^***p < 0.001;

^**p < 0.01;

^*p < 0.05;

^†survived Bonferroni correction (p < 0.0025)