Table.

Distribution of EEG waves in the cortex and VTA in sleep and awake states

	Sleep		Awake
	Cortex	VTA	Cortex	VTA
Delta power, %	27.16±1.04	31.77±0.98***	17.93±0.96ooo	22.35±1.30**,ooo
Theta power, %	32.85±0.59	31.93±0.63	37.84±2.04o	30.47±1.36***
Alpha power, %	25.95±0.83	22.97±0.79*	19.88±1.00oo	19.42±0.88oo
Beta power, %	10.73±0.36	10.50±0.43	14.69±0.63ooo	15.97±0.80ooo
Gamma power, %	3.33±0.37	2.99±0.32	11.29±0.91ooo	11.36±1.06ooo

Each value of individual wave powers represents the mean±standard errors for 60-s period preceding saline injection (baseline). Two types of symbols (* and o) are used to show between-structure differences in the same state and between-state differences in the same structure Student's t-test.

^*p<0.05

^**p<0.01

^***p<0.01

^op<0.05

^oop<0.01

^ooop<0.001