ANALYSIS OF EEG IMAGES

The electric potential of the direct Electroencephalography (EEG) problem is presented for the case of a homogeneous sphere, when this is given both in closed form – exact solution – and in terms of spherical harmonics – approximate solution. The model in both cases involves a sphere with constant c...

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Bibliographic Details
Published inMathematical Methods In Scattering Theory And Biomedical Engineering pp. 304 - 311
Main Authors DASSIOS, GEORGE, GIAPALAKI, SOFIA N., KANDILI, ANASTASIA N., KARIOTOU, FOTINI
Format Book Chapter
LanguageEnglish
Published WORLD SCIENTIFIC 01.08.2006
Subjects
Biomedical Engineering
Online AccessGet full text
ISBN9812568603
9812773193
9789812773197
9789814477598
9814477591
9789812568601
DOI10.1142/9789812773197_0030

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Summary:The electric potential of the direct Electroencephalography (EEG) problem is presented for the case of a homogeneous sphere, when this is given both in closed form – exact solution – and in terms of spherical harmonics – approximate solution. The model in both cases involves a sphere with constant conductivity, where the source is considered to be a point current dipole. Data distribution of the electrical potential on the head surface is produced for both cases. The presentation includes a parametric analysis based on the location as well as on the orientation of the moment, for a single current dipole. A detailed comparison between the exact and the approximate solution is also included.
ISBN:9812568603
9812773193
9789812773197
9789814477598
9814477591
9789812568601
DOI:10.1142/9789812773197_0030