<prompt> Inhibitory Neurotransmitter in brain Cerebellum, cerebral cortex etc. isGABAGlutamateAspartateAcetylcholine  <response>: A GABA Inhibitory amino acids: Glycine in brain stem spinal cord GABA in brain Cerebellum, cerebral cortex etc. Excitatory amino acids: Glutamate in cerebral cortex brain stem Aspartate in spinal cord. 