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Computed EEG Topography — Theory, Implementation and Application

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Investigation of Brain Function

Part of the book series: Ettore Majorana International Science Series ((EMISS,volume 7))

Abstract

Taken at first glance, the EEG appears to be merely a mixture of sinusoids ranging in frequency from 1 to 30 Hz with variations in frequency, phase relation and amplitude that are a function of the scalp location from which they are recorded, the state of activity of the subject and the state of the underlying brain. When a normal subject is maintained in the same state of activity repeated samples of more than 15–20 seconds in duration will lead to similar frequency distributions and similar amplitude statistics within a single channel. It is this predictable stability of the EEG signal that allows the estimation of altered states of activity related to altered function or disease.

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Author information

Authors and Affiliations

  1. Department of Neurology, Graduate Hospital, 19th and Lombard Street, Philadelphia, Pa, 19146, USA

    Richard N. Harner

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  1. Richard N. Harner
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Editor information

Editors and Affiliations

  1. Institute of Child Health, University of London, London, England

    A. W. Wilkinson

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© 1981 Plenum Press, New York

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Harner, R.N. (1981). Computed EEG Topography — Theory, Implementation and Application. In: Wilkinson, A.W. (eds) Investigation of Brain Function. Ettore Majorana International Science Series, vol 7. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-4043-0_6

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  • DOI: https://doi.org/10.1007/978-1-4684-4043-0_6

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4684-4045-4

  • Online ISBN: 978-1-4684-4043-0

  • eBook Packages: Springer Book Archive

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