2.
Explain how your chosen drug affects the dopamine neurotransmitter system.
With reference to scientific journal articles, explain how your chosen drug affects the functioning of the dopamine system. In order to fully answer this part of the question you will need to briefly outline what the dopamine system is responsible for and its role in substance abuse and addiction. Why are the effects of drugs on the dopamine system important for our understanding of addiction?
3.
Explain how changes in the dopamine system from repeated drug use can lead to a cycle of relapse and addiction.
With reference to scientific journal articles, explain how changes in the dopamine system resulting from repeated drug use can lead to a cycle of relapse and addiction. You may wish to use your chosen drug as a specific example in explaining how repeated drug use can lead to difficulty abstaining and repeated relapse, and how changes in the dopamine system contribute to this behavioural pattern. You may need to refer to psychological theories and/or principles regarding addiction to fully answer this part of the question.