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Journal of Comparative Physiology A

, Volume 155, Issue 3, pp 397–405 | Cite as

Neural control of ventilation in the shore crab,Cardnus maenas

I. Scaphognathite motor neurons and their effect on the ventilatory rhythm
  • R. A. DiCaprio
  • C. R. Fourtner
Article

Summary

  1. 1.

    Intracellular recordings were obtained from the scaphognathite motor neurons ofCarcinus maenas in an isolated ganglion preparation. The ability of intracellular current injection to perturb the ventilatory motor pattern was investigated.

     
  2. 2.

    Intracellular injection of current pulses and steady current into all motor neurons penetrated could perturb the ventilatory rhythm. The observed effects included resetting of the ventilatory rhythm (Figs. 2, 4 and 6), starting and stopping the motor pattern (Fig. 5) and increasing or decreasing the frequency of the rhythm (Table 1).

     
  3. 3.

    The resetting effect is not dependent upon the production of action potentials in the motor neurons (Figs. 2, 3).

     

Keywords

Motor Neuron Current Pulse Current Injection Motor Pattern Neural Control 
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.

Abbreviations

SG

scaphognathite

CPG

central pattern generator

PRC

phase response curve

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Copyright information

© Springer-Verlag 1984

Authors and Affiliations

  • R. A. DiCaprio
    • 1
  • C. R. Fourtner
    • 1
  1. 1.Department of Biological SciencesState University of New York at BuffaloBuffaloUSA

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