How Dopamine & Serotonin Shape Decisions, Motivation & Learning | Dr. Read Montague

About this video

Huberman interviews Dr. Read Montague of Virginia Tech, a pioneer in measuring dopamine and other neuromodulators in humans in real time, about how dopamine and serotonin shape decisions, motivation and learning. Dr. Montague explains dopamine as a teaching signal based on expectations and outcomes across multiple milestones, constantly adjusting what you do next, not simply a reward chemical. He describes dopamine and serotonin working in a seesaw fashion, with serotonin teaching about unwanted outcomes, and discusses how SSRIs can increase serotonin that then acts at dopamine synapses to blunt dopamine’s rewarding properties. Dr. Montague also explains how states such as hunger and stress can flip dopamine to encode aversive events, and why strongly negative feedback can produce overgeneralization rather than good learning.

Key takeaways

• Dr. Montague describes dopamine as a teaching signal that adjusts behavior based on expectations and outcomes.
• Dr. Montague explains dopamine and serotonin work in a seesaw fashion, with serotonin teaching about unwanted outcomes.
• Dr. Montague describes SSRIs increasing serotonin that can act at dopamine synapses and reduce dopamine’s rewarding properties.
• Dr. Montague explains that hunger and stress states can flip dopamine to encode aversive events.
• Dr. Montague argues strongly negative feedback is poor teaching because it promotes overgeneralization, as in PTSD.

Episode details: published February 2, 2026 · 285.5K views · 2:41:25 long. Summary written by Self Growth Videos from the episode itself. The science and protocols described are Andrew Huberman’s, presented for education — not medical advice. Consult a qualified professional before changing your own health practices.

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