Table 1. Other outcome measures of the serotonin transporter genotype by stress environment (control or inescapable shocks) experiment.

For each outcome measure (named in the first column) there is an indication whether each effect was significant: genotype, stress, and interaction of stress and genotype.

Outcome Measure	Effect			Genotype	Treatment	n	Mean	SE
	Genotype	Stress	G × E interaction
Ambulatory distance in OF	**	*	ns	WT	Control	24	974	85
					Inescapable Shock	26	860	107
				Het	Control	27	980	75
					Inescapable Shock	27	718	92
				KO	Control	24	719	108
					Inescapable Shock	25	531	101
Percent distance in OF center	#	**	ns	WT	Control	25	1.33	0.52
					Inescapable Shock	26	2.78	0.81
				Het	Control	26	0.69	0.19
					Inescapable Shock	25	2.43	0.83
				KO	Control	23	0.26	0.12
					Inescapable Shock	23	1.13	0.46
Bite latency in NSF (s)	***	ns	*	WT	Control	21	59.3	8.3
					Inescapable Shock	22	66.0	9.6
				Het	Control	17	76.4	12
					Inescapable Shock	19	102	20
				KO	Control	21	194	28
					Inescapable Shock	20	129	20
5 min pellet consumption (g)	ns	ns	ns	WT	Control	20	.135	.015
					Inescapable Shock	20	.165	.018
				Het	Control	18	.128	.023
					Inescapable Shock	19	.111	.025
				KO	Control	20	.100	.021
					Inescapable Shock	20	.140	.011
Percent weight lost in NSF	ns	ns	ns	WT	Control	17	8.48	.68
					Inescapable Shock	17	8.58	.62
				Het	Control	15	8.30	.78
					Inescapable Shock	17	8.20	.72
				KO	Control	18	7.50	.96
					Inescapable Shock	17	7.32	.76
Immobility min 3–7 in FST	***	ns	ns	WT	Control	27	148	13
					Inescapable Shock	26	158	11
				Het	Control	26	139	11
					Inescapable Shock	27	157	10
				KO	Control	25	214	9
					Inescapable Shock	26	214	11

^*p < .05,

^**p < .01,

^***p < .0001,

^#p < .1,

"ns" not significant.

In addition, for each outcome measure, group results including number of subjects, mean, and standard error of the group are indicated.

Abbreviations: KO – knockout with no functional serotonin transporter, Het – one functional and one disrupted 5HTT allele, WT – wild-type, OF – Open Field, NSF – Novelty Suppressed Feeding, FST – Forced Swim Test.