Brain magnetic resonance imaging (MRI) ... bilateral cuneus, and areas around the left central sulcus distinguish ADHD from typically developing patients.

Seventeen of the 18 long-term astronauts experienced a narrowing of the central sulcus in the brain. This was present in only three of the short-term astronauts.

Results showed a narrowing of the central sulcus in 17 of 18 (94%) astronauts after long-duration flights and in 3 of 16 (19%) astronauts after short-duration flights (P < .001).