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Image of the dorsal raphe area of the brain.

Neurotransmitter switch-up helps fan extreme stress into full-blown fear

The flip occurs when certain neurons in the dorsal raphe start to express the chemical GABA instead of glutamate, a new study shows.

By Claudia López Lloreda
9 April 2024 | 5 min read
Illustrated portrait of Lauren O’Connell.

Setting up a frog colony and pair bonding with Lauren O’Connell

To become a scientist, O’Connell first needed to leave the family farm.

By Brady Huggett
1 March 2024 | 63 min listen

Explore more from The Transmitter

To beat the heat, hypothalamus neurons in mice ramp up their firing

The uptick may help the rodents acclimate to temperature hikes and keep their cool.

By Calli McMurray
11 December 2024 | 7 min read
Dima Rinberg smells one of the compounds in his lab, looking at camera with a quizzical expression.

Sniffing out the mysteries of olfaction

A background in physics, and his own curiosity, have helped Dmitry Rinberg tackle the complexities of the neuroscience of smell.

By Lina Zeldovich
11 December 2024 | 13 min read
Drawing by Santiago Ramón y Cajal of a hypothesis for how signals travel through neurons.

‘Sacred objects’ display discredits Golgi and Ramón y Cajal’s rivalry: Q&A with curator Daniel Colón Ramos

A new exhibit that opened last week shows drawings from the influential duo side by side for the first time and recasts them as collaborators. It also reveals lessons for modern scholars.

By Claudia López Lloreda
10 December 2024 | 7 min read