Which neurotransmitter would you expect to see in high quantities, if you could, in the brain of someone who has just been rewarded with a large raise in salary for all his or her hard work?

Dopamine is the correct answer. Dopamine would be the neurotransmitter expected to be seen in high quantities in the brain of someone who has be rewarded.

Explanation:

Dopamine can be described as an important chemical that serves both as a hormone and as a neurotransmitter in the body.

One of the dopamine pathways in the brain is involved in sending signals for the reward system. This system is responsible for the generation of signals for reward or craving for rewards, positive attitude, pleasure etc. Hence, the neurotransmitter, dopamine would be present in enhanced quantities in the brain of a person who has been rewarded with pay raise.  

yes? sounds right, but you didn’t ask a question.