Big Rewards Fast-Track Learning by Extending Dopamine Signals
A study from HHMI’s Janelia shows that larger rewards speed learning in mice by boosting and prolonging dopamine signals, which enhances retention per repetition, day-to-day memory carryover, and especially engagement. This reduces variability between individuals and compresses training from days to hours, with perfect mastery possible in under 48 hours, potentially reshaping how neuroscience research trains animals and investigates complex cognition.