Experimental results of 6 neuron VLSI circuit of lamprey unit pattern generator

Elizabeth J. Brauer, Ranu Jung, James J. Abbas, Brett Thompsen, Sharon Hilchie, An Tran

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The lamprey, an eel-like fish, has 100 segments in the spinal cord. Each segment, called the unit Pattern Generator (uPG), is capable of generating self-sustained oscillations for locomotion, i.e. swimming. We have designed, built, and tested an electronic circuit model of the uPG using analog VLSI CMOS circuits. Our neuromorphic single-segment model utilizes 6 neurons, 4 excitatory synapses, 8 inhibitory synapses, and 6 tonic synapses with simplified biophysical properties. In this paper, we present the experimental results of the chip and compare to the simulated chip behavior. We present the operation under varying conductances, then consider the entrainment of the segment to an external signal with varying frequency and magnitude.

Original languageEnglish (US)
Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
PublisherIEEE
Number of pages1
ISBN (Print)0780356756
StatePublished - Dec 1 1999
EventProceedings of the 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Fall Meeting of the Biomedical Engineering Society (1st Joint BMES / EMBS) - Atlanta, GA, USA
Duration: Oct 13 1999Oct 16 1999

Publication series

NameAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume1
ISSN (Print)0589-1019

Other

OtherProceedings of the 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Fall Meeting of the Biomedical Engineering Society (1st Joint BMES / EMBS)
CityAtlanta, GA, USA
Period10/13/9910/16/99

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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  • Cite this

    Brauer, E. J., Jung, R., Abbas, J. J., Thompsen, B., Hilchie, S., & Tran, A. (1999). Experimental results of 6 neuron VLSI circuit of lamprey unit pattern generator. In Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings; Vol. 1). IEEE.