Table 1.

Individual occurrences (mean±SEM) of positive hedonic and negative affective taste reactivity responses in naltrexone or vehicle treated sodium replete and sodium depleted rats.

Positive Hedonic Behaviors				Negative Affective Behaviors
Groups	LTP	PL	RTP	F	FW	G	HS
SV	0.75±0.62	2.38± 1.21	10.50±3.17	3.00±0.71	25.13±6.46	2.00±1.43	2.57±0.35
S0.5	3.00±1.39	0.86± 0.37	2.57±1.09	7.00±3.30	8.14±2.22	15.71±6.10	0.71±0.33
S1	1.83±1.17	4.50± 3.51	5.33±4.74	3.50±2.05	4.50±2.50	14.83±4.38	0.67±0.33
FV	6.89±2.83	55.11±16.96	25.67±6.62	1.33±0.67	1.33±1.01	5.67±3.45	0.56±0.34
F0.5	1.17±0.48	33.67±15.85	2.83±1.28	1.33±0.56	10.83±3.25	6.50±3.63	0.33±0.21
F1	2.14±0.83	18.00± 9.08	4.14±0.94	1.71±1.23	18.43±9.88	16.29±6.37	0.29±0.29

Positive hedonic responses (mean±SEM) were subdivided into lateral tongue protrusions (LTP), paw licks (PL), and rhythmic (midline) tongue protrusions (RTP). Negative affective responses (mean±SEM) were subdivided into flails (F), face wipes (FW), gapes (G), and head shakes (HS). Experimental treatment groups: SV = sham depleted + vehicle; S0.5 = sham depleted + naltrexone (0.5 mg/kg); S1 = sham depleted + naltrexone (1 mg/kg); FV = furosemide depletion + vehicle; F0.5 = furosemide depletion + naltrexone (0.5 mg/kg); F1 = furosemide depletion + naltrexone (1.0 mg/kg).