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Glial and Neuronal Generators of Sustained Potential Shifts Associated with Electrographic Seizures

  • Chapter
Basic Mechanisms of the EEG

Part of the book series: Brain Dynamics ((BD))

Abstract

There is no precise, formal, agreed boundary between slow EEG waves and sustained potential (SP) shifts. I use the term “SP” for shifts of voltage that last a second or more but do not exceed a few minutes and, in most cases, do not repeat or oscillate (Somjen, 1970, 1973). An imprecise but practical demarcation is given in that SP shifts cannot be recorded with conventional EEG recorders because they require DCcoupled amplification. Other authors have used the terms “DC potential,” “steady potential,” or “slow potential,” meaning more or less the same (Caspers et al., 1987; Haschke et al., 1993).

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Authors
  1. George G. Somjen
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Editors and Affiliations

  1. Neurologische Univ-Klinik, Eppendorf, D-2000, Hamburg, Germany

    Stephan Zschocke

  2. Institut für Physiologie, Universität Münster, D-48149, Münster, Germany

    E.-J. Speckmann

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© 1993 Springer Science+Business Media New York

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Somjen, G.G. (1993). Glial and Neuronal Generators of Sustained Potential Shifts Associated with Electrographic Seizures. In: Zschocke, S., Speckmann, EJ. (eds) Basic Mechanisms of the EEG. Brain Dynamics. Birkhäuser, Boston, MA. https://doi.org/10.1007/978-1-4612-0341-4_7

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  • DOI: https://doi.org/10.1007/978-1-4612-0341-4_7

  • Publisher Name: Birkhäuser, Boston, MA

  • Print ISBN: 978-1-4612-6715-7

  • Online ISBN: 978-1-4612-0341-4

  • eBook Packages: Springer Book Archive

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