Drug Addiction

Question:

Explain the mechanisms underlying drug addiction. Using specific examples of
drugs of abuse, neurotransmitters and neural circuits involved, discuss the
molecular and cellular pathways involved and how they result in addiction. In
your answer include examples of experimental approaches that are being used
to study drug addiction and what we have learned from such studies. Use
diagrams and figures to illustrate your answer.

Please be aware of plagiarism maximum 2-4% or lower
Thanks