Coordinate transformations or dynamic models?

Article Abstract:

An analysis of the research conducted on sensorimotor transformations show that the central nervous system transformations, whether they be motor commands to muscle tensions, muscle tensions to body movements or body movements to exteroceptive sensory consequences are best understood as internal models of the input-output characteristics of multivariate, nonlinear, time-varying, dynamic systems and not as coordinate transformations.

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Coordinate transformations: some basic questions

Article Abstract:

The work of Martha Flanders et al was shown to make an important contribution in understandign coordinate transformations in the study of mechanisms that underlie the control of movements by the central nervous system. Certain questions were raised on the shoulder-centered representation of target direction as well as the observed distance errors resulting from the central nervous system implementing some nonlinear relationships.

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