This paper proposes a human–system coupling framework for understanding interactive environments in which embodied human activity is continuously translated into perceptual feedback through computational systems. Rather than conceptualizing interaction as a sequence of discrete commands, the framework interprets interactive systems as perceptual mediation environments linking bodily action, computational interpretation, and perceptual response. The framework is illustrated through the EchoCycle installation, which converts mechanical energy generated by cycling into real-time audiovisual feedback. Observations from the installation suggest that participants initially engage in exploratory behavior and gradually develop more stable activity patterns as they adapt to the feedback provided by the system. In shared interaction contexts, the perceptual environment reflects collective activity, creating conditions under which behavioral alignment among participants may emerge. By framing interactive systems as continuous perception–action loops, this study highlights how computational mediation can shape both individual adaptation and collective interaction dynamics. The proposed framework contributes to human–computer interaction and interactive system design by offering an integrated perspective on embodied action, perceptual feedback, and responsive environments.
Hsuan-Cheng Lin (Fri,) studied this question.