But go ahead and thumb through your dict ionary and see how many more words it in dic ates have this useful root! 1  dictionary: tells how to âsayâ words. 2  addict : âspeaksâ heavily towards something. 3  predict : âsayâ beforehand. 4  contradict : âsayâ against.
Neurotransmitters: Exciting and Inhibiting. Gamma-Amino-Butyric-Acid, or GABA, is the chief inhibitory neurotransmitter in the human brain. Along with serotonin, dopamine, glutamate, glycine, histamine, and norepinephrine, among dozens of other neurotransmitters, GABA regulates brain function.eurotransmitters: Exciting and Inhibiting. Gamma-Amino-Butyric-Acid, or GABA, is the chief inhibitory neurotransmitter in the human brain. Along with serotonin, dopamine, glutamate, glycine, histamine, and norepinephrine, among dozens of other neurotransmitters, GABA regulates brain function.
GABA is the primary inhibitory neurotransmitter in the brain and therefore filters out irrelevant messages (static) by terminating signals from the excitatory neurotransmitters: glutamate, and its positive modulators epinephrine, norepinephrine, and PEA.auses of GABA deficiency. GABA receptor function may be reduced because of a genetic polymorphism in the GABA receptor that reduces the efficiency of GABA neurotransmission, the presence of GABA receptor inhibitors, or low serotonin levels. Serotonin is a positive regulator of GABA-GABA receptor interaction.