Pulse-based signal compression for implanted neural recording systems

John G. Harris, José C. Principe, Justin C. Sanchez, Du Chen, Christy She

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

10 Scopus citations

Abstract

Today's implanted neural systems are bound by tight constraints on power and communication bandwidth. Most conventional ADC-based approaches fall into two categories. Either they transmit all of the information at the Nyquist rate but are ultimately limited to only a handful of channels due to communication bandwidth constraints. Or they perform spike detection on the front-end which allows a scale up to 100 or more channels but prevents the use of spike sorting on the backend. Spike sorting is an important step that provides a labeling to multiple neurons on each channel and further improves the accuracy of spike detection. In this paper we describe the pulse-based approach used in the FWIRE (Florida Wireless Implantable Recording Electrodes) project. A hardware spiking neuron on each channel is configured either to transmit pulses for full reconstruction on the back-end, or to transmit dramatically fewer pulses but still allow for spike sorting on the back-end. Spike sorting results show that the pulse-based spike sorting accuracy is competitive with conventional methods used in daily practice.

Original languageEnglish (US)
Title of host publication2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008
Pages344-347
Number of pages4
DOIs
StatePublished - Sep 19 2008
Event2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008 - Seattle, WA, United States
Duration: May 18 2008May 21 2008

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Other

Other2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008
CountryUnited States
CitySeattle, WA
Period5/18/085/21/08

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Pulse-based signal compression for implanted neural recording systems'. Together they form a unique fingerprint.

  • Cite this

    Harris, J. G., Principe, J. C., Sanchez, J. C., Chen, D., & She, C. (2008). Pulse-based signal compression for implanted neural recording systems. In 2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008 (pp. 344-347). [4541425] (Proceedings - IEEE International Symposium on Circuits and Systems). https://doi.org/10.1109/ISCAS.2008.4541425