Introduction. 1. The Cerebellum and its Disorders in the Dawn of the Molecular Age; A. Plaitakis. Part I: Basic Neurosciences of the Cerebellum. 2. Anatomy and Neurochemical Anatomy of the Cerebellum; J. Hamori. 3. Physiology of the Cerebellum; M. Ito. 4. Amino Acid Transmitters in the Adult and Developing Cerebellum; R. Balazs. 5. Glutamate Receptors in Mammalian Cerebellum: Alterations in Human Ataxic Disorders and Cerebellar Mutant Mice; E. Kouvelas, A. Mitsakos, F. Angelatou, P. Tsiotos, G. Voukelatou. 6. Regional and Cellular Distribution of Glutamate Dehydrogenase and Pyruvate Dehydrogenase Complex in Brain: Implications for Neurodegenerative Disorders; C. Aoki, T.A. Milner, V.M. Pickel. 7. The Purkinje Cell Degeneration Mutant, A Model to Study the Consequences on Neuronal Degeneration; B. Ghetti, L. Triarchou. Part II: Clinical Neurosciences of the Cerebellum. 8. Classification and Epidemiology of Cerebellar Degenerations; A. Plaitakis. 9. The Cerebellar Cortex and the Dentate Nucleus in Hereditary Ataxias; A.H. Koeppen, D.I. Turok. 10. Clinical Neurophysiology in Olivopontocerebellar Atrophy; S. Chokroverty. 11. Pathophysiology of Ataxia in Humans; H.C. Diener, D. Dichgans. 12. Oculomotor Abnormalities in Cerebellar Degeneration; M. Fetter, J. Dichgans. 13. Clinical and Radiologic Features of Cerebellar Degenerations; A. Plaitakis, S. Katoh, Y.P. Huang. Part III: Ethiopathogenesis of Cerebellar Disorders. 14. Glutamate Dehydrogenase Deficiency in Cerebellar Degenerations; A. Plaitakis,P. Shashidharan. 15. Mitochondrial Abnormalities in Hereditary Ataxias; S. Sorbi, J.P. Blass. 16. Cerebellar Disorders in Hexosaminidase Deficiencies; W.G. Johnson. 17. Dominant Olivopontocerebellar Atrophy Mapping to Human Chromosome 6p; M. Nances, L.J. Schut. 18. Positron Emission Tomography of Cerebellar Degeneration; S. Gilman. 19. Ataxia Telengiectasia. A Human Model of Neuro-Immune Degeneration; M. Fiorelli, M. Carbonari, M. Cherchi, C. Gaetano. 20. Paraneoplastic Cerebellar Degeneration; J.E. Hammack, J.B. Posner. Index.