Simulations of Intersegmental Coordination during Swimming in the Lamprey using a Continuous Network Model

  • Tom Wadden
  • Jeanette Hellgren
  • Anders Lansner
  • Sten Grillner
Conference paper

Abstract

Swimming in the lamprey involves the coordination of alternating burst activity in the left and right sides of each spinal segment, with a frequency from.25 to 8-10 Hz. R.ostrocauda.l time delays between burst onset in each segment produce a laterally directed traveling wave which propels the animal forwards through the water. A reversed direction of the wave results in backward swimming [1, 2]. The intersegmental phase lag (Fig 1A) is considered independent of swimming speed and is, in the isolated spinal cord, approximately 1%/segment, although values of ±2% can be recorded [3].

Keywords

NMDA Tral Sten 

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Copyright information

© Springer Science+Business Media New York 1995

Authors and Affiliations

  • Tom Wadden
    • 1
  • Jeanette Hellgren
    • 1
    • 2
  • Anders Lansner
    • 1
  • Sten Grillner
    • 2
  1. 1.Department of Numerical Analysis and Computing Science Royal Institute of TechnologySANS — Studies of Artificial Neural SystemsStockholmSweden
  2. 2.Karolinska InstitutetNobel Institute for NeurophysiologyStockholmSweden

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