Emotion processing

Recent articles

Rhesus macaque monkey makes an intimidating face.

Some facial expressions are less reflexive than previously thought

A countenance such as a grimace activates many of the same cortical pathways as voluntary facial movements.

By Natalia Mesa
8 January 2026 | 5 min read
Hands arrange various shapes over a color background.

Emotion research has a communication conundrum

In 2025, the words we use to describe emotions matter, but their definitions are controversial. Here, I unpack the different positions in this space and the rationales behind them—and I invite 13 experts to chime in.

By Nicole Rust
5 September 2025 | 29 min read
Research visualization of reverberating activity in a selection of higher-order brain areas.

Eye puffs prompt separable sensory, affective brain responses in mice, people

Post-puff brain state might not be an emotion, some researchers caution, but the protocol provides a cross-species approach to study emotions.

By Calli McMurray
29 July 2025 | 8 min read
Two surreal heads touch each other’s faces.

The case for redefining ‘theory of mind’: Q&A with François Quesque

In a new commentary, Quesque and 44 experts in neuroscience and psychology propose a standardized lexicon for research on the attribution of mental states.

By Lauren Schenkman
10 October 2024 | 7 min read
Illustration of ketamine blocking open ion channels in active NMDA receptors, quieting the cells and disrupting downstream signaling involved in depression.

Ketamine targets lateral habenula, setting off cascade of antidepressant effects

The drug’s affinity for overactive cells in the “anti-reward” region may help explain its rapid and long-lasting results.

By Olivia Gieger
4 September 2024 | 6 min read
Research image of microglia in rats.

Temperament is innate but hackable, animal studies suggest

Emotional reactivity and vulnerability to stress are largely inherited in rodents — but can be modified in early life by targeting inflammation-related cells or even just adjusting an animal’s environment.

By Holly Barker
23 January 2024 | 8 min read

Autism research hits the road

Some scientists are thinking creatively about how to collect data in flexible environments and meet communities where they’re at.

By Giorgia Guglielmi
8 December 2023 | 0 min watch
A cross-section of the human brain and limbic system

Amygdala-linked brain areas grow differently in autism

The growth differences vary between autistic boys and girls and are most apparent among children with prominent social difficulties.

By Charles Q. Choi
13 July 2022 | 5 min read
Illustration of hybrid objects: part light bulb, part lab vial, some in blue and some in red to signify null and replicated results

Null and Noteworthy: Halted vasopressin trial, intact visual memory, a new way to study emotions

In this edition of Null and Noteworthy, a large clinical trial goes sideways, while memory and emotions hold up.

By Laura Dattaro
10 March 2022 | 4 min read

How an understudied trait has skewed autism studies for decades

Many autistic people have a little-known trait called alexithymia, defined as having difficulty identifying one's own emotions. New research suggests that the overlap has been confounding studies of emotional issues in people with autism for decades.

By Laura Dattaro
27 October 2021 | 9 min read

Explore more from The Transmitter

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 equipment (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
Illustration of primate hands interacting with objects of cognitive tests.

The neuroscience questions that need nonhuman primates

The Transmitter asked 17 neuroscientists what questions might remain unanswered if support for nonhuman primate research continues to decline.

By Alissa de Chassey
9 October 2026 | 10 min read