Includes bibliographical references (pages 105-133) and index.
Planaria : short introduction / Robert B. Raffa -- Brain and neural networks / Kaneyasu Nishimura [and others] -- Gene expression in the brain and central nervous system in planarians / Katsuhiko Mineta, Kazuho Ikeo and Takashi Gojobori -- Catecholamines in planaria / Antonio Carolei, Irene Ciancarelli and Giorgio Venturini -- Opioids in planaria / Antonio Carolei, Marco Colasanti and Giorgio Venturini -- Nitric oxide in lower invertebrates / Marco Colasanti and Giorgio Venturini -- Second messenger systems in planaria / Scott M. Rawls -- Planaria as model in drug abuse research / Robert B. Raffa -- Physical dependence and withdrawal in planarians / Robert B. Raffa -- Drug combinations and isoboles / Ronald J. Tallarida -- Analysis of behavior in the planarian model / Cindy L. Nicolas, Charles I. Abramson and Michael Levin -- The planarian regeneration model as a context for the study of drug effects and mechanisms / Nøstor J. Oviedo and Michael Levin.