Figure 1

Licking behaviour as a function of sucrose concentration during a short, 10 minute access to sucrose in hungry mice. Six different measures of licking behaviour are given for WT (black bars) and Gria1 −/− (white bars) mice for consumption of 4%, 8%, 16%, and 32% sucrose solutions: (a) total licks; (b) volume consumed (ml); (c) mean lick cluster size; (d) inter-lick interval within lick clusters (s); (e) mean lick duration (s); (f) mean volume per 1000 licks (ml). Error bars indicate SEM.