The B6 mice exhibited robust concentration-dependent increases in licking for all of the taste stimuli (experiment 2). We present licking responses as standardized lick ratios (SLR) (means ± SE). We defined the isoacceptable concentration of each taste stimulus as the lowest concentration that elicited an SLR > 0.7 (dashed line). We identify the isoacceptable concentrations with an asterisk. We tested the following number of mice with each taste stimulus: glucose (n = 9), sucrose (n = 11), maltose (n = 9), Polycose (n = 10), fructose (n = 10), α-methyl-d-glucopyranoside (MDG; n = 8), acesulfame potassium (Ace K; n = 12), sucralose (n = 11), saccharin (n = 10), and SC45647 (n = 9).