A multichannel telemetry system for single unit neural recordings.

Journal Article (Journal Article)

We present the design, testing, and evaluation of a 16 channel wearable telemetry system to facilitate multichannel single unit recordings from freely moving test subjects. Our design is comprised of (1) a 16-channel analog front end board to condition and sample signals derived from implanted neural electrodes, (2) a digital board for processing and buffering the digitized waveforms, and (3) an index-card sized 486 PC equipped with an IEEE 802.11b wireless ethernet card. Digitized data (up to 12 bits of resolution at 31.25k samples/s per channel) is transferred to the PC and sent to a nearby host computer on a wireless local area network. Up to 12 of the 16 channels were transmitted simultaneously for sustained periods at a range of 9 m. The device measures 5.1 cm x 8.1 cm x 12.4 cm, weighs 235 g, and is powered from rechargeable lithium ion batteries with a lifespan of 45 min at maximum transmission power. The device was successfully used to record signals from awake, chronically implanted macaque and owl monkeys.

Full Text

Duke Authors

Cited Authors

  • Obeid, I; Nicolelis, MAL; Wolf, PD

Published Date

  • February 15, 2004

Published In

Volume / Issue

  • 133 / 1-2

Start / End Page

  • 33 - 38

PubMed ID

  • 14757342

International Standard Serial Number (ISSN)

  • 0165-0270

Digital Object Identifier (DOI)

  • 10.1016/j.jneumeth.2003.09.023


  • eng

Conference Location

  • Netherlands