Table 1.

Results from sucrose consumption test of the two experiments illustrated in Figs 1 and 2

Response in sucrose consumption test	Experiment I				Experiment II
	Controls without CMS (n  = 10) Exp. #1a	CMS			CMS
		Citalopram			ECS
		Before treatment (n  = 15) Exp. #1b	After treatment		Before treatment (n  = 29) Exp. #2a	After treatment
			Vehicle (n  = 8) Exp. #1c	Citalopram (n  = 7) Exp. #1d		Sham (n  = 9) Exp. #2b	Cortical ECS (n  = 10) Exp. #2c	Auricular ECS (n  = 10) Exp. #2d
Hedonic	8	2	1	0	6	3	6	2
Anhedonic	0	10	7	7	17	6	2	8
Unclassifiable	2	3	0	0	6	0	2	0
Significance of differences in proportion of hedonic rats (Fisher’s exact test)		P = 0.0024 vs. #1a	NS vs. #1b	NS vs. #1b	P = 0.0015 vs. #1a	NS vs. #2a	P = 0.0427 vs. #2a	NS vs. #2a

As described in Methods, the animals were randomly divided into the treatment groups and it was ensured that the number of anhedonic-like, hedonic-like, and unclassifiable rats were almost the same in all treatment groups