Midbrain

Recent articles

Gecko with circular pulses emanating from its head.

What geckos tell us about the evolution of hearing

Catherine Carr explains her discovery that geckos retain a vibration-sensing pathway previously thought to be lost when animals moved onto land.

By Helena Kudiabor
1 April 2026 | 5 min read
Research image of mouse brain slices.

Some dopamine neurons signal default behaviors to reinforce habits

Movement-sensing neurons that target the striatum influence a mouse’s choice of action by favoring routine.

By Holly Barker
11 June 2025 | 4 min read
Research image of neurons in the interpeduncular nucleus.

‘Understudied secret’ in brain dampens nicotine drive in mice

The interpeduncular nucleus produces an aversion to nicotine, even at low doses, and helps moderate how rewarding mice find the drug.

By Lauren Schenkman
4 June 2025 | 4 min read
A marble bust of a face that is covered in real leaves.

Newly found circuit through visual cortex powers first look at faces

The superior colliculus, an evolutionarily ancient brain area responsible for eye movements, responds to faces before the canonical face areas do, a study of macaque monkeys suggests.

By Olivia Gieger
19 July 2024 | 5 min read
A photograph of Paul-Antoine Libourel.

At the end of the earth with Paul-Antoine Libourel

The French researcher’s accomplishments working with chinstrap penguins in the Antarctic highlight the importance of recording sleep in the wild.

By Yves Sciama
11 June 2024 | 18 min read

Explore more from The Transmitter

Edgar Adrian works in the laboratory, around 1920.

The neural code at 100

In two 1926 articles, Edgar Douglas Adrian revealed that neurons communicate through trains of spikes.

By Matteo Carandini
12 October 2026 | 8 min read
Illustrated collage of a monkey profile, a gloved hand holding a vaccine syringe touching an outline of the United States with two primates sitting near it, a strand of DNA, and flags of the United States and China in the background.

U.S. national primate research centers face an uncertain future

The facilities were meant to last 100 years. Four decades shy of that mark, amid flatlined funds and mounting political pressure, their directors are trying to find a path forward.

By Calli McMurray
9 October 2026 | 12 min read
Reflections of primates in lab glassware (bottom left: Rhesus macaque, top left: Pig-tailed macaque, bottom right: Crab-eating macaque. top right: Marmoset

What if nonhuman primate research goes away?

As the U.S. government takes steps to stop using nonhuman primates in research, The Transmitter investigates what that shift could mean for neuroscience.

By The Transmitter
9 October 2026 | 2 min read