Systems neuroscience

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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

Long-sought walking circuit found in fruit flies

The neuronal circuit controlling repetitive locomotion patterns in any animal has been a mystery until now.

By Natalia Mesa
13 May 2026 | 0 min watch

Explore more from The Transmitter

Illustration of birdsong, bird brain, and DNA.

This paper changed my life: Embracing an early model for naturalistic neuroscience

A 1992 PNAS paper showed how birdsong upregulates the expression of an immediate early gene in bird forebrains. The work revealed to Ribeiro the importance of studying molecular responses in naturalistic contexts.

By Sidarta Ribeiro
14 July 2026 | 4 min read
Illustration of an open journal featuring lines of text and small illustrations of eyes and mouths.

Major ischemic events in autistic people, and more

Here is a roundup of autism-related news and research spotted around the web for the week of 13 July.

By Jill Adams
14 July 2026 | 1 min read
Illustration of lucid dreaming.

Watching the mind build a world: Lucid dreaming as a model for generative perception

Lucid dreaming offers a rare opportunity to observe and probe perception from within.

By Magdalena Paluchowska
13 July 2026 | 8 min read