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Next Generation Large-Scale Chronically Implantable Precision Motorized Microdrive Arrays for Freely Behaving Animals

  • Jun YamamotoEmail author
Conference paper

Abstract

Multiple single-unit recording has become one of the most powerful in vivo electro-physiological techniques for investigating neural circuits. The demand for small and lightweight chronic recording devices with large number of electrodes has been increasing. However, conventional techniques do not allow fine adjustments to be made over large number of electrodes across multiple brain regions without disturbing the recording subject. Here, we have developed a large-scale motorized microdrive array to record from freely behaving animals. It has design flexibility and allows for remote adjustment of a large number of electrodes at a very fine resolution. Versions of the microdrive array were chronically implanted on both rats (21 microdrives) and mice (7 microdrives) and relatively long term recordings were taken. In this talk, current status of the new technology and future directions will be presented.

Keywords

Motorized microdrive array Large-scale Chronically implantable microdrive Freely behaving animals Rats Mice 

References

  1. 1.
    O’Keefe, J., Dostrovsky, J.: The hippocampus as a spatial map. Preliminary evidence from unit activity in the freely-moving rat. Brain Res. 34 (1971) 171–175.CrossRefPubMedGoogle Scholar
  2. 2.
    McNaughton, B.L., O’Keefe, J., Barnes, C.A.: The stereotrode: a new technique for simultaneous isolation of several single units in the central nervous system from multiple unit records. J. Neurosci. Methods. 8 (1983) 391–397.CrossRefPubMedGoogle Scholar
  3. 3.
    Wilson, M.A., McNaughton, B.L.: Dynamics of the hippocampal ensemble code for space. Science. 261 (1993) 1055–1058.CrossRefPubMedGoogle Scholar
  4. 4.
    Yamamoto, J., Wilson, M.A.: Large-scale chronically implantable precision motorized microdrive array for freely behaving animals. J. Neurophysiol. 100(4) (2008) 2430–2440.CrossRefPubMedGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.Departments of Brain and Cognitive Sciences and BiologyRIKEN-MIT Neuroscience Research Center, The Picower Institute for Learning and Memory, Massachusetts Institute of TechnologyCambridgeUSA

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