Dynamic model of the octopus arm. I. Biomechanics of the octopus reaching movement.

@article{Yekutieli2005DynamicMO,
  title={Dynamic model of the octopus arm. I. Biomechanics of the octopus reaching movement.},
  author={Yoram Yekutieli and Roni Sagiv-Zohar and Ranit Aharonov and Yaakov Engel and Binyamin Hochner and Tamar Flash},
  journal={Journal of neurophysiology},
  year={2005},
  volume={94 2},
  pages={
          1443-58
        }
}
The octopus arm requires special motor control schemes because it consists almost entirely of muscles and lacks a rigid skeletal support. Here we present a 2D dynamic model of the octopus arm to explore possible strategies of movement control in this muscular hydrostat. The arm is modeled as a multisegment structure, each segment containing longitudinal and transverse muscles and maintaining a constant volume, a prominent feature of muscular hydrostats. The input to the model is the degree of… Expand
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The modeling suggests that the octopus arm biomechanics may allow independent control of kinematics and resistance to perturbation during arm extension movements. Expand
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