M.S. Albert, Normal and Abnormal Memory: Aging and Alzheimer's Disease.<br>S.J. Lupien and M.J. Meaney, Stress, Glucocorticoids, and Hippocampal Aging in Rat and Human.<br>C.A. Barnes, Spatial Cognition and Functional Alterations of Aged Rat Hippocampus.<br>A.J. Silva, K.P. Giese, and P.W. Frankland, Identification of Molecular and Cellular Mechanisms of Learning and Memory: The Impact of Gene Targeting.<br>B.T. Hyman and T. Gomez-Isla, Normal Aging and Alzheimer's Disease.<br>J.-P. Julien, Transgenic Mouse Models with Neurofilament-Induced Pathologies.<br>P.C. Wong, D.R. Borchelt, M.K. Lee, G. Thinakaran, S.S. Sisodia, and D.L. Price, Transgenic Models of Amyotrophic Lateral Sclerosis and Alzheimer's Disease.<br>G.M. Martin, Toward a Genetic Analysis of Unusually Successful Neural Aging.<br>R.E. Tanzi, The Role of the Presenilins in Alzheimer's Disease.<br>J.Q. Trojanowski, J.E. Galvin, M.L. Schmidt, P.-H. Tu, T. Iwatsubo, and V.M.-Y. Lee, Mechanisms of Neuron Death in Neurodegenerative Diseases of the Elderly: Role of the Lewy Body.<br>S.-H. Yen, P. Nacharaju, L.-W. Ko, A. Kenessey, and W.-K. Liu, Microtubule-Associated Protein Tau: Biochemical Modifications, Degradation and Alzheimer's Disease.<br>K.S. Kosik, C. Ho, U. Liyange, C. Lemere, M. Medina, and J. Zhou, A Novel Gene in the Armadillo Family Interacts with Presenilin 1.<br>R. Quirion, D. Auld, U. Beffert, J. Poirier, and S. Kar, Putative Links Between Some of the Key Pathological Features of the Alzheimer's Brain.<br>A. LeBlanc, Unraveling the Controversy of Human Prion Protein Diseases.<br>E. Wang, Translational Control, Apoptosis, and the Aging Brain.<br>H.M. Schipper, Astrocyte Senescence and the Pathogenesis of Parkinson's Disease.<br>Index.