Table 2.

Estimated Pearson correlation coefficients between sleep parameters, hormonal concentrations and dopamine transporter density in the correspondent recovery night after REM and total sleep deprivation.

	REM Sleep Deprivation					TOTAL Sleep Deprivation
	Estradiol	Prolactin	Cortisol	DAT density R Striatum	DAT density L Striatum	Estradiol	Prolactin	Cortisol	DAT density R Striatum	DAT density L Striatum
SWS Latency R1	−0.24	0.68*	0.02			0.74*	0.49	0.20
SWS (%) R1	−0.23	0.53	−0.34			0.77*	0.44	0.20
REM sleep latency R1	0.52	−0.62	0.52			−0.19	−0.09	0.27
REM sleep (%) R1	−0.27	0.25	0.29			0.10	0.27	−0.52
SWS latency R2	0.28	0.40	−0.41			−0.37	0.46	−0.11
SWS (%) R2	−0.24	−0.33	−0.53			0.31	−0.47	0.60
REM sleep latency R2	0.00	−0.74*	0.03			−0.40	0.65*	−0.16
REM sleep (%) R2	0.28	−0.10	−0.23			−0.09	0.54	−0.75*
SWS latency R3	−0.16	0.51	−0.14	0.40	−0.21	0.25	−0.32	0.28	−0.77*	−0.35
SWS (%) R3	−0.45	−0.58	−0.39	−0.30	0.09	−0.32	0.57	0.06	−0.17	0.37
REM sleep latency R3	0.85*	−0.22	0.42	0.10	−0.29	−0.24	0.09	−0.06	0.13	−0.49
REM sleep (%) R3	−0.07	0.45	0.15	0.26	0.34	0.40	0.00	0.18	0.15	0.33

^*P < 0.05; R1, first night of sleep recovery; R2, second night of sleep recovery; R3, third night of sleep recovery; SWS, slow wave sleep; DAT, dopamine transporter; R Striatum, Right Striatum; L Striatum, Left Striatum.