Autistic people have differences in the development of their anterior cingulate cortex,[14] a part of the brain that helps regulate attention, decision making, impulse control, and emotional processing. Throughout our brains, Autistic people have delayed and reduced development of Von Economo neurons (or VENs), brain cells that help with rapid, intuitive processing of complex situations.[15] Similarly, Autistic brains differ from allistic brains in how excitable our neurons are.[16] To put it in very simple terms, our neurons activate easily, and don’t discriminate as readily between a “nuisance variable” that our brains might wish to ignore (for example, a dripping faucet in another room) and a crucial piece of data that deserves a ton of our attention (for example, a loved one beginning to quietly cry in the other room). This means we can both be easily distracted by a small stimulus and miss a large meaningful one.

— Unmasking Autism by Devon Price (Page 22)