Chasing myelin — how an autism hypothesis about supply became one about timing
Myelin is the fatty insulation around axons, and the prefrontal cortex is the last part of the brain to get it. That makes a tempting hypothesis: if the machinery for making it is constitutionally weak, the last place to be insulated should be the first place to fail — which happens to be the region whose functions look most like the ones disrupted in autism. This is the log of testing that idea on public data, the two reframings the data forced, and the sharper question that came out the other side.
Mon Sep 21 2026 00:00:00 GMT+0000 (Coordinated Universal Time)