This series focuses on contemporary issues, methods and controversies in the field of neurotoxicology. This volume addresses the application of molecular biologic techniques to answer important questions in neurtoxicology. Recombinant DNA and molecular genetic technologies have been instrumental in unravelling the complexities of gene expression in the brain and these approaches are proving useful in neurotoxicologic evaluations. Areas covered by other volumes in the series include cloning strategies, useful in isolating biomarkers of toxicity, molecular approaches useful in determining mechanisms of toxicant action, and use of heterologous expression of neuronal proteins to evaluate toxicant effects.