Question

question 78
the primary neurotransmitter of addiction is ______.
a egotamine
b nicotine
c acetylcholine (ach)
d dopamine
e gaba

Explanation:

To determine the primary neurotransmitter of addiction, we analyze each option:

• Option A: "egotamine" is not a recognized neurotransmitter related to addiction.
• Option B: Nicotine is a substance (not a neurotransmitter) that can lead to addiction by affecting neurotransmitters like dopamine.
• Option C: Acetylcholine (Ach) is involved in muscle function, learning, etc., not primarily addiction.
• Option D: Dopamine is associated with the brain's reward system. Addictive behaviors stimulate dopamine release, reinforcing the behavior, making it the primary neurotransmitter of addiction.
• Option E: GABA is an inhibitory neurotransmitter, not the primary one for addiction.

Answer:

D. dopamine