Introduction and perspectives on the neurobiology of aging / Maynard H. Makman, George B. Stefano -- Effects of acetylcholine and aging on electrical excitability of the central nervous system / David O. Carpenter [and others] -- Alterations in muscarinic cholinergic neurotransmission in normal aging and Alzheimer's disease: implications for current therapeutic strategies for treatment of dementia / Esam E. El-Fakahany, James A. Joseph -- Influence of normal aging on monoamines, monoamine receptors and associated signal transduction systems / Maynard H. Makman -- Altered calcium homeostasis during aging of the brain: cellular mechanisms involved and possible consequences / Jorgina Satrustegui [and others] -- Adrenal glucocorticoids as modulators of brain aging / Michael J. Meaney [and others] -- Neuroimmunological processes and aging / George B. Stefano [and others] -- Aging and analgesic mechanisms / Richard J. Bodnar, Gavril W. Pasternak -- Pond snail Lymnaea stagnalis: an animal model for aging studies in the central nervous system / C. Janse.

(cont) Alterations of opioid regulatory mechanisms associated with aging / George B. Stefano.