Book excerpt: Explore the brain and discover the clinical and pharmacological issues surrounding drug abuse and dependence. The authors, research scientists with years of experience in alcohol and drug studies, provide definitions, historic discoveries about the nervous system, and original, eye-catching illustrations to discuss the brain/behavior relationship, basic neuroanatomy, neurophysiology, and the mechanistic actions of mood-altering drugs. You will learn about: • how psychoactive drugs affect cognition, behavior, and emotion • the brain/behavior relationship • the specific effects of major addictive and psychoactive drug groups • new definitions and thinking about abuse and dependence • the medical and forensic consequences of drugs use Drugs, the Brain, and Behavior uses a balance of instruction, illustrations, and tables and formulas that will give you a broad, lasting introduction to this intriguing subject. Whether you're a nurse, chemical dependency counselor, psychologist, or clinician, this book will be a quick reference guide long after the first reading.