Neuromodulators

Recent articles

Research image of serotonin and dopamine neurons manipulated simultaneously in mice.

Dopamine ‘gas pedal’ and serotonin ‘brake’ team up to accelerate learning

Mice learn fastest and most reliably when they experience an increase in dopamine paired with an inhibition of serotonin in their nucleus accumbens, a new study shows, helping to resolve long-standing questions about the neuromodulators’ relationship.

By Angie Voyles Askham
12 February 2025 | 5 min read

Explore more from The Transmitter

Illustration of a series of shapes, with a few resembling human eyes.

The visual system’s lingering mystery: Connecting neural activity and perception

Figuring out how the brain uses information from visual neurons may require new tools. I asked 10 neuroscientists what experimental and conceptual methods they think we’re missing.

By Grace Lindsay
13 October 2025 | 5 min read
Illustration of a neuron.

New questions around motor neurons and plasticity

A researcher’s theory hangs muscle degeneration on a broken neural circuit.

By David Adam
10 October 2025 | 11 min listen
Research image of SCN2A neurons.

Boosting SCN2A expression reduces seizures in mice

A modified form of CRISPR amps up expression of the gene—a strategy that could apply to other gene variations linked to autism.

By Charles Q. Choi
9 October 2025 | 5 min read

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