Shown are sample traces of activity in GCbt to the bitter odor A stimuli for one animal, from delivery of the stimuli (taste) to response. The black trace denotes average responses for trials where the mouse correctly identified the bitter stimuli after a 3-s delay period (correct). The red trace shows average responses in trials that produced incorrect responses (total for this example: 37 trials; 32 correct and 5 incorrect). The right panel shows the summary of decay traces for 6 different mice. Plotted is the normalized average GCaMP6s signals during the 3-s delay window in GCbt. Responses were normalized to the maximal activity recorded in each trial. Values are mean ± SEM; n = 6 animals; correct, 119 trials; incorrect, 33 trials; Kruskal-Wallis test:****p < 0.0001. For analyses of half-decay times, seeFigure S6E.