“Feel Good” Chemical Serotonin Signals Future Rewards to Brain: Study

“Feel Good” Chemical Serotonin Signals Future Rewards to Brain: Study

April 23, 2025 Serotonin neurons signal to the brain the expected value of near-future rewards, a discovery that helps to clarify the neurotransmitter’s complex role in regulating mood, learning, and more, according to a new study in Nature. 1 The research puts forth a unifying theory that makes sense of previously irreconcilable contradictions regarding the understanding of how serotonin functions, based on what its interdisciplinary team of sc…