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. Author manuscript; available in PMC: 2017 Oct 20.
Published in final edited form as: Neurobiol Learn Mem. 2015 Sep 5;125:135–145. doi: 10.1016/j.nlm.2015.08.011

Figure 3. Rapid updating of reward-predictive DA signal after positive feedback.

Figure 3

Heat plots show average DA values per trial for the first 10 correct trials (correct) and the trials immediately following correct trials (correct+1) made before (top panel) and after (lower panel) reversal (shown here for animals that learned reversal, n=11). Striatal DA shows a leftward shift from time of reward delivery to time of cue presentation in first 10 trials after reversal. Receipt of unexpected reward on first correct trials after reversal induces updating of cue-evoked DA signal on trials that immediately follow the correct response. Blue boxes indicate trials used for statistical analysis. Onset of cue presentation and approximate time of lever press for each trial indicated by vertical white lines.