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CONTENTS CELL DEATH AND REMOVAL IN THE CEREBRAL CORTEX DURING DEVELOPMENT I. FERRER,* E. SORIANO,? J. A. DEL RIO,*+ S. ALCANTARA* and C. AULADELL,* *Unidad de Neuropatologia, Depto. Anatomia Patolégica, Hospital Principes de Espafia, Facultad de Medicina, 08907 Hospitalet de Llobregat, Universidad de Barcelona, Spain, and +Unidad de Biologia Celular, Facultad de Biologia, Diagonal 645, 08028 Barcelona, Universidad de Barcelona, Spain PRINCIPLES OF ORGANIZATION OF NEURAL SYSTEMS CONTROLLING AUTOMATIC MOVEMENTS IN ANIMALS 45 K. V. BAEV and Y. P. SHIMANSKY, Department of Physiology of the Spinal Cord, A. A. Bogomoletz Institute of Physiology, Ukrainian Academy of Science, 4 Bogomoletz Street, 252024 Kiev, Ukraine MOLECULAR CHARACTERISTICS OF EXCITATORY AMINO ACID RECEPTORS 113 J. M. BARNES and J. M. HENLEY, Department of Pharmacology, Medical School, University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K. EFFECT OF AMMONIUM IONS ON SYNAPTIC TRANSMISSION IN THE MAMMALIAN CENTRAL NERVOUS SYSTEM 135 J. C. SZERB* and R. F. BUTTERWORTH,? *Department of Physiology and Biophysics, Dalhousie University, Halifax, Nova Scotia, Canada, and +tLaboratory of Neurochemistry, André-Viallet Clinical Research Center, H6pital Saint-Luc, University of Montreal, Montreal, Quebec, Canada THE ROLE OF MESENCEPHALIC AND THALAMIC AROUSAL SYSTEMS IN EXPERIMENTAL SEIZURES 155 J. W. MILLER, Department of Neurology and Neurological Surgery (Neurology), Washington University School of Medicine, St. Louis, MO 63110, U.S.A. CENTRAL NERVOUS ANGIOTENSIN II RESPONSIVENESS IN BIRDS 179 E. SIMON, R. GERSTBERGER and D. A. GRAY, Max-Planck-Institut fiir Physiologische und Klinische Forschung, William G. Kerckhoff-Institut, D-6350 Bad Nauheim, Germany LONG-TERM POTENTIATION AND LONG-TERM DEPRESSION IN THE NEOCORTEX 209 T. TSUMOTO, Department of Neurophysiology, Biomedical Research Center, Osaka University Medical School, Suita City 565, Japan G PROTEIN ACTIVATION OF CARDIAC MUSCARINIC K+ CHANNELS 229 Y. KURACHI,*t R. T. TUNG,” H. ITO? and T. NAKAJIMA,? *Division of Cardiovascular Diseases, Departments of Internal Medicine and Pharmacology, Mayo Clinic, Mayo Foundation, Rochester, MN 55905, U.S.A., and The 2nd Department of Internal Medicine, Faculty of Medicine, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113, Japan DOPAMINE FUNCTIONS IN APPETITIVE AND DEFENSIVE BEHAVIOURS 247 J. R. BLACKBURN,* J. G. PFAUS? and A. G. PHILLIPS,+ *Department of Psychology, McMaster University, Hamilton, Ontario L8S 4K1, Canada, tCentre for Studies in CONTENTS Behavioural Neuroscience, Concordia University, Montreal, P.Q., H3G 1M8, Canada and tDepartment of Psychology, University of British Columbia, Vancouver, B.C., V6T 1Z4, Canada THYROID RECEPTORS IN THE RAT BRAIN 281 J. PUYMIRAT, Department of Ontogenesis and Molecular Genetics, Research Center, CHU Laval, 2705 Bd Laurier, Sainte-Foy, Quebec, GIV 4G2, Canada PROPERTIES OF VERTEBRATE GLUTAMATE RECEPTORS: CALCIUM MOBILIZATION AND DESENSITIZATION 295 C. F. ZORUMSKI and L. L. THIO, Departments of Psychiatry and Anatomy and Neurobiology, Washington State University Medical School, St. Louis, MO, U.S.A. NEUROTRANSMITTER ACTIONS IN THE THALAMUS AND CEREBRAL CORTEX AND THEIR ROLE IN NEUROMODULATION OF THALAMOCORTICAL ACTIVITY 337 D. A. McCORMICK, Section of Neurobiology, Yale University School of Medicine, 333 Cedar St., New Haven, CT 06510, U.S.A. PLASTICITY OF THE BARREL CORTEX NEURONS 389 M. KOSSUT, Nencki Institute, 3 Pasteur St., 02-093 Warsaw, Poland PEPTIDES IN CEREBELLAR CIRCUITS 423 J. S. KING, S. L. CUMMINGS and G. A. BISHOP, Department of Cell Biology, Neurobiology and Anatomy, Ohio State University, 4072 Graves Hall, 333 West 10th Avenue, Columbus, OH 43210-1239, U.S.A. THE CYTOPLASMIC STRUCTURE OF THE AXON TERMINAL 443 T. GOTOW, Department of Anatomy, Osaka University Medical School, 2-2 Yamadaoka, Suita, Osaka 565, Japan THE PHYSIOLOGICAL EFFECTS OF PEPTIDES AND SEROTONIN ON PURKINJE CELL ACTIVITY 475 G. A. BISHOP and C. W. KERR, Department of Cell Biology, Neurobiology and Anatomy and Neuroscience Program, 33 W. 10th Ave., Columbus, OH 43210, U.S.A. IONIC CURRENTS IN COCHLEAR HAIR CELLS 493 P. A. FUCHS, Department of Physiology, University of Colorado School of Medicine, Denver, CO 80262, U.S.A. BIOLOGICAL SUBSTRATES OF ANATOMIC ASYMMETRY 507 G. D. ROSEN, G. F. SHERMAN and A. M. GALABURDA, Dyslexia Research Laboratory and Charles A. Dana Research Institute, Beth Israel Hospital, Department of Neurology, Beth Israel Hospital and Harvard Medical School, Boston, MA 02215, U.S.A. ANIMAL AND DRUG MODELLING FOR ALZHEIMER SYNAPTIC PATHOLOGY 517 P. T. FRANCIS, M. N. PANGALOS and D. M. BOWEN, Miriam Marks Department of Neurochemistry, Institute of Neurology, | Wakefield St., London WCIN IPJ, U.K. THE PURINE NUCLEOTIDE CYCLE AND ITS MOLECULAR DEFECTS 547 G. VAN DEN BERGHE, F. BONTEMPS, M. F. VINCENT and F. VAN DEN BERGH, Laboratory of Physiological Chemistry, International Institute of Cellular and Molecular Pathology, UCL 7539, B-1200 Brussels, Belgium CONTENTS THE PYRAMIDAL NEURON OF THE CEREBRAL CORTEX: MORPHOLOGICAL AND CHEMICAL CHARACTERISTICS OF THE SYNAPTIC INPUTS J. DEFELIPE* and I. FARINAS,? *Instituto Cajal, Avenida Dr. Arce, 37, 28002-Madrid, Spain, and +Departamento Biologia Celular i Anatomia Patolégica, Facultad de Medicina, Universitad de Barcelona, Spain THE NEURONAL SUBSTRATE OF INTEGRATION IN THE OCULOMOTOR SYSTEM K. FUKUSHIMA, C. R. §. KANEKO and A. F. FUCHS, Department of Physiology, Hokkaido University School of Medicine, Sapporo 060 Japan and Department of Physiology and Biophysics and Regional Primate Research Center, University of Washington, Seattle, Washington 98195, U.S.A.