Also to say the frontal lobe isn't important seems a bit disengenious when you consider that things like ambition and impulse control are controled there.
Heck, look what happened to Phinneus Gage. Nowhere near the same level, but it shows that the frontal lobe is quite important.
If you want to argue that ADHD isn't a problem, that's a whole different arguement from whether or not the Frontal Lobe is important.
When it comes to ADHD the inactivity in the frontal lobe isn't anything like that of marijuana use. The inactivity in the frontol lobe of ADHD is primarily located in only a small section of the frontal lobe.








