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This paper introduces the concept of a responsive environment
which perceives human behavior and responds with intelligent auditory and visual feedback. Several exhibits of responsive environments, implemented by the author, combining computer graphics, video projection and two-way video communication are described. VIDEOPLACE, an evolving exhibit which defines a conceptual telecommunication environment uniting geographically separated people in a common visual experience, is discussed at some length. Based on these examples a new art form of composed manmachine interaction is defined. Finally, practical applications are suggested for the fields of education, psychology and psychotherapy.