Low Levels of the Neurotransmitter Dopamine Can Lessen the Ability

Multiple Choice

Low levels of the neurotransmitter dopamine can lessen the ability to focus effectively on tasks. However, high levels of dopamine can result in feelings of motivation. How would you classify dopamine and why?

A) Dopamine is excitatory because it enhances motivation levels.
B) Dopamine is inhibitory because it diminishes the ability to focus.
C) Dopamine is both inhibitory and excitatory because it can enhance motivation levels but diminish the ability to focus.