Katherine Bourzac
Freelance Writer
Simons Foundation
From this contributor
Child development: The first steps
Because infants born into families with autism are more likely to develop the condition, studying them might lead to ways to diagnose people in the general population earlier.
Birth weight predicts brain size later in life, study says
Heavier newborns have larger brains later in life, and a larger cerebral cortex — the brain region responsible for high-level functions such as consciousness and language. The findings, published 19 November in the Proceedings of the National Academy of Sciences, are the first to assess birth weight’s connection to brain development.
Birth weight predicts brain size later in life, study says
Long-term studies chart autism’s different trajectories
Two new studies that follow the development of children with autism suggest that distinct subgroups of the disorder exist early on, and that the severity of symptoms in most of these children remains stable over time.
Long-term studies chart autism’s different trajectories
Explore more from The Transmitter
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.
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.
Autism-linked copy number variants always boost autism likelihood
By contrast, varied doses of the same genes decrease or increase the odds of five other conditions, with distinct biological consequences, two new preprints show.
Autism-linked copy number variants always boost autism likelihood
By contrast, varied doses of the same genes decrease or increase the odds of five other conditions, with distinct biological consequences, two new preprints show.
Everything everywhere all at once: Decision-making signals engage entire brain
The findings, gleaned from the most comprehensive map yet of brain activity during decision-making in mice, show that the process is even more distributed than previously thought.
Everything everywhere all at once: Decision-making signals engage entire brain
The findings, gleaned from the most comprehensive map yet of brain activity during decision-making in mice, show that the process is even more distributed than previously thought.