Please do not say the words “dopamine” and “nucleus accumbens” anywhere near me, I still have my old sack of doorknobs. These explanations could not be more general and useless. Using those two in support of a common addiction pathway is like involving “gasoline” and “spoons” in the diathesis for serial rapes. Even though these are involved in various “addictions”—cocaine, alcohol, internet, sex—these “addictions” and their associated behaviors are so disparate that the pathway serves no useful clinical target. Haldol blocks dopamine in the nucleus accumbens, but you can’t cure alcoholism with it, can you?
I’m not denying that such a pathway exists, I’m doubting the utility of this information, even if true. Call me when science catches up to your lies.