Which of the following neurotransmitters has been identified as seminally involved in an organism's reward system and is often altered by drugs of abuse?

Which of the following neurotransmitters has been identified as seminally involved in an organism's reward system and is often altered by drugs of abuse?

Which of the following neurotransmitters has been identified as seminally involved in an organism's reward system and is often altered by drugs of abuse?





  1. Dopamine
  2. GABA
  3. Serotonin
  4. Acetylcholine
  5. None of the above

Answer: 1