History of Environmental Psychology Environmental psychology is concerned with the interaction of people with their built and natural environments. Psychophysicists in the late 19th century extensively explored the notion that factors in the environment can influence people, and behaviorists, human factors scholars, and ergonomics researchers advanced the notion in the 20th century. The first documented use of the term “environmental psychology” is dated to a 1964 paper, “Environmental Psychology and Architectural Planning,” presented by psychologist William H. Ittelson at an American Hospital Association Conference on Hospital Planning in New York. Ittelson and others were interested in whether aspects of hospital design (e.g., private rooms vs. wards, bright vs. subdued wall colors, seating that forced facing others across tables vs. seating against walls that allowed distancing from others) could impact therapeutic outcomes in psychiatric and medical hospitals. Thus, the first books on environmental psychology (Ittelson, Proshansky, and Rivlin’s 1970 Environmental Psychology and Ittelson, Proshansky, Rivlin, and Winkel’s 1974 An Introduction to Environmental Psychology) emphasized the built environment and potential beneficial outcomes of alternative designs. Other social scientists explored similar concepts, such as sociologist John Zeisel in his 1975 Sociology and Architectural Design. At the same time, other psychologists studied whether aspects of an entire community could make a difference in behavior (e.g., Roger Barker’s 1968 Ecological Psychology: Concepts and Methods for Studying the Environment of Human Behavior), and still others examined the interplay between the built environment and social interaction (e.g., Robert Sommer’s 1969 Personal Space and 1972 Design Awareness; Irwin Altman’s 1975 The Environment and Social Behavior). In 1970 the first Earth Day emphasized human interaction with the natural environment and how some practices can damage that environment and alternative practices can preserve it. Spawned by alarming evidence of damage to the natural environment (e.g., Rachel Carson’s 1962 Silent Spring) and earlier naturalists’ (e.g., John Muir, Aldo Leopold) calls for an ethic of preservation, the environmental movement gained momentum and environmental psychology embraced and incorporated components of it. Two of the early mergers of the built and natural emphases were represented by Kenneth Craik and Erwin Zube’s 1976 Perceiving Environmental Quality, and by Paul Bell, Jeffrey Fisher, and Ross Loomis’s 1978 Environmental Psychology. Today, a course in environmental psychology can incorporate material that is applicable to either the built or natural environment, or to both. Other labels have also emerged that instructors might incorporate in the course. Barker’s (e.g., 1968, 1990) ecological psychology involves a special set of principles (e.g., the behavior setting, staffing) and methods (e.g., field observation) to study how communities or aspects of communities influence social interaction and outcomes. Conservation psychology is a movement that emphasizes the use of psychological principles to encourage conservation and preservation of natural resources (see http://www.conservationpsychology.org). Ecopsychology is a movement that emphasizes therapeutic benefits of interacting with nature (see http://www.ecopsychology.org). References Altman, I. (1975). The environment and social behavior. Monterey, CA: Brooks/Cole. Bell, P. A., Fisher, J. D., & Loomis, R. J. (1978). Environmental psychology. Philadelphia: W.B. Saunders. Carson, R. (1962). Silent spring. Boston: Houghton Mifflin. Craik, K. H., & Zube, E. H. (1976). Perceiving environmental quality: Research and applications. New York: Plenum. Ittelson, W. H. (1964). Environmental psychology and architectural planning. Paper presented at the American Hospital Association Conference on Hospital Planning, New York. Ittelson, W. H., Proshansky, H. M., Rivlin, L. G., & Winkel, G. H. (1974). An introduction to environmental psychology. New York: Holt, Rinehart and Winston. Proshansky, H. M., Ittelson, W. H., & Rivlin, L. G., (Eds.) (1970). Environmental psychology: Man and his physical setting. New York: Holt, Rinehart, & Winston. Sommer, R. (1969). Personal space. Englewood Cliffs, NJ: Prentice Hall. Sommer, R. (1972). Design awareness. San Francisco: Rinehart Press. Zeisel, J. (1975). Sociology and architectural design. Social Science Frontiers (6). New York: Russell Sage Foundation.