____ is a neurotransmitter that contributes to arousal and vigilance.
a. GABA
b. Serotonin
c. Acetylcholine
d. Norepinephrine
Question 2
Elsie, an 85-year-old woman, has been diagnosed with early-stage Alzheimers disease. Her doctor has prescribed the medication that will help prevent deterioration of brain circuits and slow the progression of her illness. Which neurotransmitter does this medication directly impact?
a. GABA
b. epinephrine
c. glutamate
d. acetylcholine