Schematic (a) illustrates the order of events in trials at each well and the number and type of reward delivered at each well in the five trial-blocks performed in all recording sessions. Dashed lines indicate the omission of drops previously delivered. Rats were highly accurate in choosing the rewarded well during recording (b), and accuracy was unaffected by the flavor or number of drops at a particular well, either for the group or for individual subjects (flavor: F1,193=1.3, p=0.26; number: F1,193=1.0, p=0.32; interactions with subject: F’s <= 1.0, p’s > 0.47). Rats were faster to respond for the 3-drop rewards (c), and this effect was again unaffected by the flavor of reward, either for the group or for individual subjects (main effect of number: F1,193=190, p<10−6; main effect of flavor: F1,193=1.75, p=0.19; flavor X subject interaction: F9,193=0.86, p=0.56). A two-bottle preference test run at the end of the sessions (d) also revealed no effect of flavor (F1,9=0.17, p=0.69). Data for individual subjects is illustrated by lines; error bars represent standard errors across sessions for percent correct and latency and across rats for the consumption test. Recordings were made in ventral tegmental area (e), and dopaminergic neurons (n = 30) were identified by waveform cluster analysis (f). **p<0.01. g = grape, tp = tropical punch.