脳波を用いた脳内電流双極子発生源の特定について : SSB/DT法  [in Japanese] Determination of Current Dipole in the Brain from EEG : SSB/DT Method  [in Japanese]

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Author(s)

Abstract

The principle of the scalp skull and brain dipole tracing (SSB/DT) method and its application were described. The SSB/DT method enabled to estimate the location of current dipoles from EEG (10-20 international system). The main principle of the arithmetic algorithm consisted in the calculation of the local minimum of the evaluated function; that is, the difference of the recorded and the estimated potentials on the scalp. Before calculation, the three-layered head model of individual subjects was constructed based on X ray-CT photographs taken 5 mm interval of the horizontal plane. The conductance of the scalp, skull and brain, which is very important for precise calculation of the current dipole, was estimated by passing a small amount of rectangular current (0. 1 mA x 5 msec) at the scalp. Several physiological studies conducted in our and other laboratories demonstrated the usefullness of the SSB/DT method.

Journal

  • Transactions of the Virtual Reality Society of Japan

    Transactions of the Virtual Reality Society of Japan 5(2), 867-874, 2000

    THE VIRTUAL REALITY SOCIETY OF JAPAN

References:  12

Cited by:  1

Codes

  • NII Article ID (NAID)
    110008746707
  • NII NACSIS-CAT ID (NCID)
    AA11448578
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    1344-011X
  • NDL Article ID
    5430916
  • NDL Source Classification
    ZM2(科学技術--科学技術一般--大学・研究所・学会紀要)
  • NDL Call No.
    Z14-B420
  • Data Source
    CJP  CJPref  NDL  NII-ELS  J-STAGE 
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