Highlighting the current developments and future directions in GABA and glycine research, this volume covers the major inhibitory neurotransmitters from the molecular mechanisms of signal transduction to their role in health and disease. It is of topical importance because these neurotransmitters are essential for brain function and therapy of diseases such as anxiety disorders, insomnias, epilepsy, depression, spasticity, and memory deficits. Distinguished scientists at the forefront of research contributed reviews on the role of these transmitters in governing neuronal networks, their signalling pathways, their receptors, the pharmacology of GABA A- and GABA B- and GABA C-receptors as well as of GABA- and glycine-transporters, and their role in disease. The volume serves as reference for pharmacologists/toxicologists, neuroscientists, neurologists and psychiatrists.