A Synthetic Nervous System with Coupled Oscillators Controls Peristaltic Locomotion

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Abstract

This paper details the development and analysis of a computational neuroscience model, known as a Synthetic Nervous System, for the control of a simulated worm robot. Using a Synthetic Nervous System controller allows for adaptability of the network with minimal changes to the system. The worm robot kinematics are inspired by earthworm peristalsis which relies on the hydrostatic properties of the worm’s body to produce soft-bodied locomotion. In this paper the hydrostatic worm body is approximated as a chain of two dimensional rhombus shaped segments. Each segment has rigid side lengths, joints at the vertices, and a linear actuator to control the segment geometry. The control network is composed of non-spiking neuron and synapse models. It utilizes central pattern generators, coupled via interneurons and sensory feedback, to coordinate segment contractions and produce a peristaltic waveform that propagates down the body of the robot. A direct perturbation Floquet multiplier analysis was performed to analyze the stability of the peristaltic wave’s limit cycle.

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APA

Riddle, S., Nourse, W. R. P., Yu, Z., Thomas, P. J., & Quinn, R. D. (2022). A Synthetic Nervous System with Coupled Oscillators Controls Peristaltic Locomotion. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 13548 LNAI, pp. 249–261). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-3-031-20470-8_25

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