How to Transform Topographically Ordered Spatial Information into Motor Commands

  • Horst Mittelstaedt
  • Thomas Eggert

Abstract

The question of how topographically ordered sensory information is transformed into motor commands is largely unsolved. Our theoretical approach to the positive phototaxis of an “idealized planaria” leads to the concept of map-weighting provided by an intermediate information processing structure between eyes and motor apparatus. Map-weighting and subsequent summation generate the components which, reciprocally facilitated and inhibited in the CNS, yield appropriate commands. It is suggested that map-weighting may be adjusted to produce or restore an optimal match with the external luminance distribution. The matching may be achieved by comparing the reafference of the animal’s movements with an efference copy of the motor commands. The concept of map-weighting, in principle, may be applied to other sensori-motor functions as well, such as the transformation of the locus of prey in the toad’s tectum into an appropriate motor output.

Keywords

Motor Command Spectral Amplitude Efference Copy Tuning Function Positive Phototaxis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1989

Authors and Affiliations

  • Horst Mittelstaedt
    • 1
  • Thomas Eggert
    • 1
  1. 1.Max-Planck-Institut für Verhaltensphysiologie SeewiesenSeewiesen/StarnbergFR Germany

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