You may even imagine a picture of what you want to drink. That is your Addictive Voice, expressing the Beast's demand for alcohol. AVRT allows you to become acutely aware of Beast activity and dissociate from it so it can no longer instigate action. The structural model presents your addiction as a function of health rather than disease. The 2-part brain model is simple, but for our purposes, not simplistic.
Brain chemistry is irrelevant to recovery.
They are cues for action, directing you to complete recovery, while online. If you have been drinking or using today, sign off and return here during a day when you have been abstinent. Make a safe plan for detox. You are responsible to protect yourself against acute withdrawal symptoms. If you are in doubt, consult with your physician.