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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

Clockwise: lab mouse, zebrafish, octopus, rat pushing a cube, nematodes, fruit fly.

The term ‘model organism’ should be reserved for biological systems

By referring to artificial neural networks as model organisms, we run the risk of distorting funding priorities and disregard the explanatory power of a shared evolutionary history across biological organisms.

By Marc Coutanche
13 November 2026 | 6 min read

New phase of BRAIN Initiative spawns basal ganglia ‘parts list’

With a standardized cell naming system and infrastructure for data collection and analysis, the basal ganglia project sets the stage for a whole-brain primate atlas.

By Claudia López Lloreda
12 November 2026 | 1 min watch
Research image showing genes containing microexons in mice.

Machine-learning model spots autism-linked variants that scramble splicing

The model provides a way to investigate genetic variation in regions of the genome whose functions have been difficult to interpret.

By Giorgia Guglielmi
12 November 2026 | 4 min read