Tetrodes for Monkeys

  • J. S. Pezaris
  • M. Sahani
  • R. A. Andersen

Abstract

We have adapted the Recce-O’Keefe tetrode for use in monkey cortex. Eleven penetrations have been made over macaque area MT to evaluate the mechanical and electrical properties of our design. Experiments have been made with 15 and 25 μm insulated nichrome wire running through oil-filled 33 gauge stainless steel guide tubes. Electrically, the tetrodes compare favorably with traditional tungsten electrodes for single-unit isolation, and are superior for multi-unit recordings. Preliminary histology shows straight tracks at up to 12 mm tetrode extension.

Keywords

Guide Tube Nichrome Wire Power Line Interference Straight Track Conductive Silver Paint 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Refrences

  1. 1.
    Recce, M. L., and O’Keefe, J., “The tetrode: an improved technique for multi-unit extracellular recording.” Society of Neuroscience Abstracts, 15 (2), p. 1250 (1989).Google Scholar
  2. 2.
    Wilson, M. A., and McNaughton, B. L., “Dynamics of the hippocampal ensemble code for space,” Science. 261 (5124), pp. 1055–1058 (1993).PubMedCrossRefGoogle Scholar
  3. 3.
    Gray, C. M., et al, “Tetrodes markedly improve the yield and reliability of multiple single unit isolation from multiunit recordings in cat striate cortex,” Society, /dr Neuroscience Abstracts. 20 (1), p. 625 (1994).Google Scholar

Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • J. S. Pezaris
    • 1
  • M. Sahani
    • 1
  • R. A. Andersen
    • 1
  1. 1.Computation and Neural Systems Division of BiologyCalifornia Institute of TechnologyPasadenaUSA

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