Presents evidence for how drugs may alter brain function and thereby influence the factors that mediate behavior. Virtually the only text on this subject that includes, as a major topic, "Set and Setting," or the issue of user expectation and the environment in which drugs are taken, is critical to understanding observed behavior after drug ingestion. The text also covers the issues of experimental design within the context of specific drug topics. Presents pharmacology and neurophysiology fundamentals in the context of drugs and behavior to help non-biologically sophisticated readers learn concepts that rely on a knowledge of physiology. Conveys the concept that behavior is determined by many factors, not solely by the pharmacology of drugs in a person's system, a critical behavior issue not emphasized by other books. For those interested in drugs and behavior as it relates to psychology, sociology, pre-nursing, and pre-law. Designed for those with a non-physical science background, but includes enough depth for professionals in the science fields.