(A) Consumption volumes averaged over 4 nights of wild-type mice given the choice of water only (blue) or water plus menthol (25, 50, 100 μg/ml, green). Error bars represent SEM. ***:p<0.001; n=3 per group.
(B) Consumption volumes averaged over 4 nights of Trpm8−/− mice given the choice of water only (blue) or water plus menthol (25, 50, 100 μg/ml, green). Error bars represent SEM. ****:p<0.0001; n=4 per group.
(C) Consumption volumes averaged over 4 nights of wild-type mice given the choice of water only (blue) or water plus nicotine (100μg/ml or 200μg/ml). n=5 per group.
(D) Consumption volumes averaged over 4 nights of Trpm8−/− mice given the choice of water only (blue) or water plus nicotine (100μg/ml or 200μg/ml). n=4 per group.