Mendelian Randomization Found Brain Structure Causally Contributed to ADHD and Autism
TL;DR: A 2026 Mendelian randomization study in Progress in Neuro-Psychopharmacology & Biological Psychiatry used genetic data to test direction of effect between brain structure and neurodevelopmental conditions, and found that increased surface area in the superior frontal gyrus raised ADHD risk while increased surface area in the orbital frontal gyrus protected against autism — with …
