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 an open journal featuring lines of text and small illustrations of eyes and mouths.

Role of maternal factors in autism; and more

Here is a roundup of autism-related news and research spotted around the web for the week of 17 November.

By Jill Adams
18 November 2025 | 2 min read
complex stack of rectangular prisms.

Neurophysiology data-sharing system faces funding cliff

After the primary grant supporting Neurodata Without Borders ends in March 2026, the platform may no longer be maintained or kept up to date.

By Lauren Schneider
17 November 2025 | 5 min read
Kevin B Marvel.

A change at the top of SfN as neuroscientists gather in San Diego

Kevin B. Marvel, longtime head of the American Astronomical Society, will lead the Society for Neuroscience after a year of uncertainty in the neuroscience field.

By Natalia Mesa
16 November 2025 | 6 min read

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