The Brain

A new microscope creates images of a mouse embryo as it grows from a ball of about 100 cells into a structure with a primitive heart and brain.

Neurons grown from human stem cells and grafted onto the brains of live mice mature and form connections like those in the fetal human brain.

Children who have repetitive behaviors, a core autism trait, may show particular patterns of brain activity as early as 1 year of age.

Autistic children aged 2 to 4 have about 15 percent more fluid between their skull and their brain than their typical peers do.

A new database displays gene-expression patterns in individual cells of the developing mouse cerebellum over time.

The autism gene TBR1 controls the expression of several other candidate genes that govern the architecture of the brain’s outer section.

Two studies published in the past two months provide new clues to when and how the cerebellum contributes to autism.

A protective molecular tag on neurons can prevent microglia, the brain’s immune cells, from trimming away their connections with other neurons.

Lattice-like structures that surround neurons may be overly abundant — or scarce — in brain regions of three autism mouse models.