Common motor mechanisms support body load in serially homologous legs of cockroaches in posture and walking

@article{Quimby2005CommonMM,
  title={Common motor mechanisms support body load in serially homologous legs of cockroaches in posture and walking},
  author={Laura A. Quimby and Ayman S. Amer and Sasha N. Zill},
  journal={Journal of Comparative Physiology A},
  year={2005},
  volume={192},
  pages={247-266}
}
We studied the mechanisms underlying support of body load in posture and walking in serially homologous legs of cockroaches. Activities of the trochanteral extensor muscle in the front or middle legs were recorded neurographically while animals were videotaped. Body load was increased via magnets attached to the thorax and varied through a coil below the substrate. In posture, tonic firing of the slow trochanteral extensor motoneuron (Ds) in each leg was strongly modulated by changing body load… CONTINUE READING