I apologize, the dysfunctional dopamine levels and prefrontal cortex irregularities are two different topics. I meant to say additionally instead of "As such". But because I am such a nice person I decided to link on here multiple studies that actually support that people with autism have irregular dopamine levels and irregular frontal cortex activities. “Dopamine dysfunction may start to explain why some kids with autism are hyperactive, have tremors, motor deficits and these kinds of things,” says Aurelio Galli, professor of molecular physiology and biophysics at Vanderbilt University in Nashville, Tennessee. Attached are two articles plus a nice quote that talks about frontal cortex irregularities and dopamine insufficiency. Courchesne, E., & Pierce, K. (2005). Why the frontal cortex in autism might be talking only to itself: local over-connectivity but long-distance disconnection. Current opinion in neurobiology, 15(2), 225-230.Sutcliffe, J. S., Ulery-Reynolds, P. G., Erreger, K., Matthies, H. J., & Galli, A. (2015). Rare Autism-Associated Variants Implicate Syntaxin 1 (STX1 R26Q) Phosphorylation and the Dopamine Transporter (hDAT R51W) in Dopamine Neurotransmission and Behaviors.@@pikatore