Table 1.

Food consumed by observer mice in food preference assays (mean ± s.e.m.).

Stimulus		Food consumed (g)
		Total food	w/demonstrated odor	w/novel odor
EXPERIMENT 1
Odor alone		2.25 ± 0.10	1.15 ± 0.10	1.10 ± 0.11
Odor + UG (50 nM)		2.19 ± 0.20	1.62 ± 0.21	0.57 ± 0.12
Odor + UG (1 nM)		1.97 ± 0.15	1.37 ± 0.1	0.60 ± 0.09
EXPERIMENT 2
Odor alone		2.89 ± 0.15	1.42 ± 0.11	1.47 ± 0.13
Odor + G (50 nM)		2.00 ± 0.25	1.47 ± 0.13	0.54 ± 0.09
Odor + G (1 nM)		2.10 ± 0.36	1.48 ± 0.2	0.7 ± 0.23
EXPERIMENT 3
Odor alone	Day 1	2.19 ± 0.31	1.18 ± 0.31	1.01 ± 0.12
	Day 2	1.98 ± 0.31	0.94 ± 0.16	1.04 ± 0.17
	Day 5	0.55 ± 0.12	0.30 ± 0.08	0.25 ± 0.16
Odor + UG (50 nM)	Day 1	2.00 ± 0.25	1.47 ± 0.13	0.53 ± 0.09
	Day 2	2.10 ± 0.36	1.48 ± 0.2	0.62 ± 0.23
	Day 5	0.63 ± 0.06	0.04 ± 0.01	0.02 ± 0.01
EXPERIMENT 4
Odor alone		2.21 ± 0.15	1.26 ± 0.14	0.95 ± 0.15
Odor + UG		2.51 ± 0.15	1.62 ± 0.12	0.89 ± 0.11
Odor alone w/novel choice		1.82 ± 0.22	0.96 ± 0.19	1.04 ± 0.19
Odor + UG w/novel choice		1.45 ± 0.19	1.15 ± 0.09	0.3 ± 0.18

UG, uroguanylin; G, guanylin; Odor: either 2% cocoa or 1% cinnamon (counterbalanced).