Theories of autism

Recent articles

The signaling imbalance theory of autism, explained

The signaling imbalance theory holds that the brains of autistic people are hyper-excitable because of either excess neuronal activity or weak brakes on that activity.

By Sarah DeWeerdt
1 May 2019 | 4 min read

The female protective effect, explained

One of the leading theories of autism posits that girls and women are biologically protected from the condition.

By Hannah Furfaro
1 May 2019 | 4 min read
Illustration of a strong man holding up a oversized brain

The extreme male brain, explained

The ‘extreme male brain’ theory suggests that autism is an exaggeration of systematic sex differences in ways of thinking.

By Hannah Furfaro
1 May 2019 | 5 min read
Illustration of red figures on a big blue brain are serotonin signaling

Serotonin’s link to autism, explained

Serotonin, the brain chemical best known for its link to depression, may also be involved in autism.

By Nicholette Zeliadt
1 May 2019 | 5 min read
A DNA helix showing common and rare variants

The multiple hits theory of autism, explained

Researchers are studying how a combination of genetic ‘hits’ may contribute to autism’s diversity.

By Jessica Wright
1 May 2019 | 4 min read
Illustration shows the world is distorted through a point of view pair of glasses

The predictive coding theory of autism, explained

In autism, a person's brain may not form accurate predictions of imminent experiences, or even if it does, sensory input may override those predictions.

By George Musser
1 May 2019 | 6 min read
overlapping network of connections in the brain

The connectivity theory of autism, explained

A growing body of evidence suggests that autism involves atypical communication between brain regions, but how and where in the brain this plays out is unclear.

By Rachel Zamzow
1 May 2019 | 4 min read

Explore more from The Transmitter

Illustration of a leaking pipe.

Securing the academic pipeline amid uncertain U.S. funding climate

Finding creative ways to keep early-career researchers in academia—for example, through part-time roles—can help the field weather the storm.

By Lucina Q. Uddin
9 March 2026 | 4 min read
Illustration of a sheet of paper with many holes punched out of it.

Let’s teach neuroscientists how to be thoughtful and fair reviewers

Blanco-Suárez revamped the traditional journal club by developing a course in which students peer review preprints alongside the published papers that evolved from them.

By Elena Blanco-Suárez
6 March 2026 | 6 min read
Megaphone with many different shapes and textures emanating from it.

New autism committee positions itself as science-backed alternative to government group

The Independent Autism Coordinating Committee plans to meet at the same time as the U.S. federal Interagency Autism Coordinating Committee later this month—and offer its own research agenda.

By Angie Voyles Askham
5 March 2026 | 5 min read

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