This book dissects the effects of ethanol on the major neurotransmitter systems affected by ethanol and correlates these actions with the behavioral consequences. The subject is approached first from the perspective of the neurochemical system and the behaviors resulting from ethanol's effects on that system. The behaviors themselves are discussed in later chapters. Some older theories of the effects of ethanol such as the membrane fluidization hypothesis are evaluated in light of new and updated information. Fetal Alcohol Syndrome (FAS) as well as the structural damage in the brain by long term ethanol exposure are also discussed.