Reward system

Recent articles

Illustration of cranes attempting to assemble a structure out of very small black squares.

Reconstructing dopamine’s link to reward

The field is grappling with whether to modify the long-standing theory of reward prediction error—or abandon it entirely.

By Angie Voyles Askham
13 September 2024 | 18 min read
Illustration of cranes attempting to assemble a structure out of very small black squares.

Dopamine and the need for alternative theories

Some experimental findings are inconsistent with the dominant model of reward prediction error, highlighting the need for alternative testable and falsifiable models for dopamine function.

By Vijay Mohan K. Namboodiri
13 September 2024 | 7 min read
Illustration of several structures constructed out of small black squares, with scaffolding on some of the structures.

Does a new theory of dopamine replace the classic model?

My answer would be no, but the model poses challenges that will sharpen our understanding of dopamine and learning.

By Naoshige Uchida
13 September 2024 | 8 min read
A diagram of green neurnons

Cocaine, morphine commandeer neurons normally activated by food, water in mice

Confirming a long-held hypothesis, repeated exposure to the drugs alters neurons in the nucleus accumbens, the brain’s reward center, and curbs an animal’s urge for sustenance.

By Lauren Schenkman
8 May 2024 | 5 min read

Explore more from The Transmitter

Research image of toxoplasma gondii showing cysts it creates as well as the MECP2 protein that it can deliver to neurons.

Parasite-based tool delivers MECP2 and other proteins to neurons

A method that uses a common brain parasite could help replenish the proteins deficient in Rett syndrome and other conditions.

By Giorgia Guglielmi
12 September 2024 | 4 min read
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Brain Inspired Microphone

Kim Stachenfeld on the dance between neuroscience and artificial intelligence

As a researcher at both Google DeepMind and Columbia University, Stachenfeld offers cross-disciplinary insight into how to understand the brain.

By Paul Middlebrooks
11 September 2024 | 92 min listen
World map displaying an analysis of years of life lost to suicide among autistic people in 2021.

PPP2R5D gene; social-communication intervention in infants; autism and suicide

Here is a roundup of autism-related news and research spotted around the web for the week of 9 September.

By Jill Adams
10 September 2024 | 2 min read