Discriminating simple from double sources via EEG and MEG measurements | Zendy

Dassios George | Zendy; Doschoris Michael | Zendy; Fragoyiannis George | Zendy; Satrazemi Konstantia | Zendy

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Discriminating simple from double sources via EEG and MEG measurements

Author(s) -

Dassios George,

Doschoris Michael,

Fragoyiannis George,

Satrazemi Konstantia

Publication year - 2016

Publication title -

mathematical methods in the applied sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.719

H-Index - 65

eISSN - 1099-1476

pISSN - 0170-4214

DOI - 10.1002/mma.3939

Subject(s) - magnetoencephalography , impossibility , electroencephalography , conductor , simple (philosophy) , homogeneous , set (abstract data type) , dipole , mathematics , excitation , statistical physics , computer science , physics , neuroscience , combinatorics , psychology , geometry , quantum mechanics , philosophy , epistemology , political science , law , programming language

An important question of electroencephalography and magnetoencephalography is associated with the possibility to identify the number of simultaneously activated areas in the brain. In the present paper, employing a homogeneous spherical conductor, serving as a geometrical model of the brain, we provide a criterion that determines whether the measured surface potential is caused by a single or a double localized neuronal excitations. We present the necessary and sufficient conditions, which decided whether the collected data originates from a single or from a set of two or more dipoles. Furthermore, we investigate the impossibility of deciding when we cannot be sure for the existence of one or two excitation centres. Copyright © 2016 John Wiley & Sons, Ltd.

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