Researchers Link Autism To A System That Insulates Brain Wiring

This image from an electron microscope shows a cross-sectional view of an oligodendrocyte (blue) among nerve fibers coated with myelin (dark red). In models of autism spectrum disorder, oligodendrocytes appear to create too much or too little myelin.

Brains affected by autism appear to share a problem with cells that make myelin, the insulating coating surrounding nerve fibers that controls the speed at which the fibers convey electrical signals.

(Image credit: Jose Luis Calvo/Science Source)