Systems neuroscience

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Research image of mouse brain.

Making waves: Sleep-like brain activity in awake mice lowers sleep need, boosts memory

Alternating on/off firing patterns don’t just characterize deep, slow-wave sleep, they drive some of its restorative benefits, new findings suggest.

By Alissa de Chassey
16 July 2026 | 4 min read
Two lab mice fighting.

From friend to foe: How the brain updates feelings toward others

A specific hippocampus-to-amygdala pathway reassigns emotional valence to a known individual, whereas the hippocampus’s own representation of that individual’s identity remains stable.

By Natalia Mesa
9 July 2026 | 5 min read

‘Completely new learning mechanism’ drives navigation in fruit flies

The neuromodulator octopamine, the insect counterpart to norepinephrine, helps flies get their bearings in an unfamiliar environment.

By Natalia Mesa
7 July 2026 | 0 min watch
Research image showing dopamine level spikes.

Reward-learning algorithm hardwired into dopamine circuit

The finding bolsters the canonical model of reward prediction error, which has come under scrutiny in recent years.

By Natalia Mesa
5 June 2026 | 5 min read
Neural networks illustration.

This paper changed my life: Appreciating John Hopfield’s brilliant neural network

In a 1982 paper, the Nobel laureate created his namesake recurrent neural network—work that taught Maria Geffen to always ground research questions in biology.

By Maria Geffen
15 May 2026 | 5 min read

Explore more from The Transmitter

Susumu Tonegawa.

In memoriam: Susumu Tonegawa, ‘intellectual giant’

He won the Nobel Prize for his work on immunology and then went on to define the field of learning and memory.

By Claudia López Lloreda
17 July 2026 | 6 min read

How BCIs reveal the speaking brain

Long-term implants provide an opportunity to study how speech arises in everyday life.

By Claudia López Lloreda, Rebecca Horne
17 July 2026 | 4 min watch
Research image of mouse and human Purkinje cells.

Purkinje cells evolved to have increasingly complex architecture

An increasing proportion of the cerebellar neurons acquired multiple primary dendrites in humans and other apes, according to a comparison of 11 primate species.

By Siddhant Pusdekar
16 July 2026 | 5 min read