Here are entered general works on the observable patterns of human actions and reactions. Works on the general science of and explanation of behavior are entered under Psychology. Material on particular types of behavior are entered under the specific subject, e.g. Drinking and traffic accidents; Food habits; Leadership.
--subdivision Physiological aspects under activities and mental conditions for works on the relationship between an individual's activity or mental state and his physiology, e.g. Soccer--Physiological aspects; Mental illness--Physiological aspects; also subdivision Physiological effect under individual chemicals and groups of chemicals, individual materials and groups of materials, individual plants and groups of plants, and under environmental phenomena or conditions for works on their effect on the functions of living organisms, e.g. Copper--Physiological effect; Heat--Physiological effect; and subdivision Physiology under individual organs and regions of the body, classes of persons, and ethnic groups, e.g. Heart--Physiology
--subdivision Physiological aspects under activities and mental conditions for works on the relationship between an individual's activity or mental state and his physiology, e.g. Soccer--Physiological aspects; Mental illness--Physiological aspects; also subdivision Physiological effect under individual chemicals and groups of chemicals, individual materials and groups of materials, individual plants and groups of plants, and under environmental phenomena or conditions for works on their effect on the functions of living organisms, e.g. Copper--Physiological effect; Heat--Physiological effect; and subdivision Physiology under individual organs and regions of the body, classes of persons, and ethnic groups, e.g. Heart--Physiology