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 … see more
Plots show firing rates of dopamine neurons in response to transitions in number of reward drops (omission or delivery; a–c) and flavor (grape or tropical punch; d–f). Changes in firing rate in … see more
Heat plots show decoding of flavor by dopamine neuron ensembles, using data from a sliding window during trials after all three drops changed flavor (a) or when only the second drop changed flavor (b… see more
(a) The reversal learning task involved binary choices between two visual cues to receive either a high or low concentration of one of two food odor rewards (one sweet [SW] and one savory [SV]). The … see more