The article focuses on issues concerning the human-computer interaction (HCI). In the study of HCI, perceptual interfaces from the perspective of computers signal an interest in machines that can accomplish human-like sensory tasks. But it's these machines that do the perceiving. There may be clues in the science of human perception about how to automate perceptual tasks, but it's computer code, not neural circuitry that will ultimately allow machines to simulate human performance. Perceptual interfaces defined from a human perspective suggests similar topics, but radically different ideas about how sensory experience works, and about how machines might change or facilitate human perception. The goal of a human-centered look at perceptual interfaces is to transform the world of computers into features of sensory experiences that determines how these interfaces work with people. One common definition of perceptual interfaces is they describe features that increase perceptual bandwidth.