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An extra information loop?


The model proposed in 1.1.1 has the advantage of providing the basic, isolated concepts. However, it should be noted that the proposed schematism obscures the fact that perception and motor control in the human are tightly coupled. The clearest example is vision, in which a coherent internal image of the outside world is reconstructed from a series of controlled eye movements (saccades) and fixations, directed at details in the environment. The eye musculature plays an essential role here: The image would fade within seconds if these muscles were paralyzed. Also, processes like continuous eye-hand coordination require an intrinsic OutputInput feedback loop in the human, which shunts the human-machine main information pathway (figure 1.1 ). This issue will be exposed in the coming chapters, notably chapter 4 on Interaction.

Esprit Project 8579/MIAMI (Schomaker et al., '95)
Thu May 18 16:00:17 MET DST 1995