>>11673388that's not how it works anon, dopamine is implicated in "learning" in the sense that the dopaminergic neurons in the brain show firing characteristics that conform to reward-prediction error signals. If an observed outcome is better than expected, they fire. If it is worse than expected, they quiet down. This has been hypothesized to reflect an adaptive process that enables observed outcomes shape future behavior in a manner that maximizes reward. So "Learning" in the context of dopamine function, is only the process updating internal models (expected rewards) so that they match future observed outcomes (amount of reward received).
So what this does not mean is that rewards themselves shape learning, in the sense that you'll retain information in the books better. A blow job after studying might help you to want to get started with studying, but it won't necessarily mean that you'll actually retain the information better.