Averaging across all sessions and mice, we found an increase in DA peaking ~0.3 s after SWRs! The SWR-DA transient was about 24% of the size of a putative positive RPE. (6/9)

Next, during a rest period before or after the task, we found SWR-triggered DA transients (SWR-DA). Here are some examples from three different sessions and mice (MUA: black tick marks; local field potential traces: blue line; GRABDA2m fiber photometry traces: green line). (5/9)

Consistent with previous work, we found a clear suppression of the dopamine concentration ([DA]) signal following reward omission relative to the expected (medium) amount, and a clear increase in [DA] following larger-than-expected reward. (4/9)