Table 1.

Baseline levels of 5-HT and 5-HIAA (nM) in the NAc and mPFC. The groups SERT^−/− and SERT^−/+ were compared to SERT^+/+. Significance is described as * p < 0.05 and ** p < 0.01.

Brain Area	Genotype	5-HT (nM)	5-HIAA (nM)
NAc	SERT+/+	0.11	154.25
	SERT+/−	0.15	122.51 *
	SERT−/−	0.64 **	86.375 **
mPFC	SERT+/+	0.16	65.67
	SERT+/−	0.22	51.34 **
	SERT−/−	0.71 **	34.91 **