by Aaron Conley, Vanderbilt University Figure 1. Dopamine in the nucleus accumbens core does not track reward prediction error in negative reinforcement tasks (A) Positive reinforcement task. (B) Dopamine was recorded via fiber photometry using dLight1.1. (C) Mice made more active than inactive responses during the post-training session (t6 = 3.18, p = 0.024; n = 6). (D and E)...