Funny, I have been wondering whether I have ADHD or not and from reading this (after skipping over some sections), I think my basal ganglia is the main culprit. I always hear everything at the same time, have lots of trouble listening to someone talk and get impatient but then surprise everyone by remembering what a nearby group was discussing 15 minutes ago.
If the basal ganglia are not functioning properly, individuals might struggle with impulse control and have difficulty filtering out distractions. They may interrupt others frequently, have trouble waiting for their turn, and find it challenging to concentrate on one task for an extended period.