I went to a talk that centred on extroverts needing dopamine, and introverts needing acetylcholine. I’m still digesting this, I believe it is no longer a thing

I went to a talk that centred on extroverts needing dopamine, and introverts needing acetylcholine. I’m still digesting this, I believe it is no longer a thing that ADHD is in put due to dopamine not being so powerful.