Glutamate is the major excitatory neurotransmitter in the brain and dysfunction of glutamate transmission is the likely cause of a variety of diseases including neurodegeneration following cerebral ischemia, Huntington's chorea, amyotrophic lateral sclerosis, epilepsy, spasticity, emesis, chronic pain, and schizophrenia. Excitatory amino acid receptor agonists and antagonists are therefore of major interest as potential drugs for central nervous system disorders. Excitatory Amino Acids is the first book entirely dedicated to the results of human testing of modulators of excitatory amino acid neurotransmitters.