AP Psychologymediummcq1 pt
Which neurotransmitter is the brain's main excitatory messenger?
A.Glutamate
B.GABA
C.Serotonin
D.Dopamine
Explanation
Core Concept
Glutamate excites neurons and underlies learning and memory; GABA is its inhibitory counterpart.
Correct Answer
AGlutamate
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