STRUCTURAL ORGANIZATION OF MONOAMINE AND ACETYLCHOLINE NEURON SYSTEMS IN THE RAT CNS - L. Descarries and N. Mechawar.- BRAIN NEURONS PARTLY EXPRESSING MONOAMINERGIC PHENOTYPE: DISTRIBUTION, DEVELOPMENT, AND FUNCTIONAL SIGNIFICANCE IN NORM AND PATHOLOGY - M. V. Ugrumov.- IN VIVO IMAGING OF NEUROTRANSMITTER SYSTEMS WITH PET - B. Gulyas, C. Halldin, and B. Maziere.- SYNAPTIC AND NONSYNAPTIC RELEASE OF TRANSMITTERS - E. S. Vizi and B. Lendvai.- CHOLINERGIC TRASMISSION - B. Lendvai.- MOLECULAR GENETICS OF BRAIN NORADRENERGIC NEUROTRANSMISSION - R. Meloni.- DOPAMINE AND THE DOPAMINERGIC SYSTEMS OF THE BRAIN - L. G. Harsing, Jr.- 5-HYDROXYTRYPTAMINE IN THE CENTRAL NERVOUS SYSTEM - A. C. Dutton and N. M. Barnes.- GABA NEUROTRANSMISSION: AN OVERVIEW - A. Schousboe and H. S. Waagepetersen.- ATP-MEDIATED SIGNALING IN THE NERVOUS SYSTEM - B. Sperlagh.- ADENOSINE NEUROMODULATION AND NEUROPROTECTION - R. A. Cunha.- REGULATION OF AMPA RECEPTORS BY METABOTROPIC RECEPTORS AND RECEPTOR TYROSINE KINASES: MECHANISMS AND PHYSIOLOGICAL ROLES - A. L. Carvalho, M. V. Caldeira, A. R. Gomes, A. P. Carvalho, and A. B. Duarte.- TAURINE IN NEUROTRANSMISSION - P. Saransaari and S. S. Oja.- THE ENDOCANNABINOID SYSTEM - B. S. Basavarajappa, R. Yalamanchili, T. B. Cooper, and B. L. Hungund.- E PROSTANOID RECEPTORS IN BRAIN PHYSIOLOGY AND DISEASE - C. D. Keene, P. J. Cimino, R. M. Breyer, K. S. Montine, and T. J. Montine.- NITRIC OXIDE AND OTHER DIFFUSIBLE MESSENGERS - J. P. Kiss.- MOLECULAR ORGANIZATION AND REGULATION OF GLUTAMATE RECEPTORS IN DEVELOPING AND ADULT MAMMALIAN CENTRAL NERVOUS SYSTEMS - E. Molnar.- SYMPATHETIC AND PEPTIDERGIC INNERVATION: MAJOR ROLE AT THE NEURAL-IMMUNE INTERFACE - I. J. Elenkov, A. Tagliani.