A well-known local herbalist sells the neurotransmitter gamma-aminobutyric acid (GABA) as "the body's natural tranquilizer," stating that it helps to calm the central nervous system and prevent anxiety and stress-related messages from reaching the motor centers of the brain. This portrayal reflects GABA's ____.
a. lack of hyperpolarization
b. inhibitory effect on brain activity
c. excitatory effect on brain activity
d. depolarizing properties
An inhibiting effect on brain activity would calm the central nervous system and prevent anxiety and stress-related messages from reaching the motor centers of the brain.
