The Neuroelectromagnetic Inverse Problem and the Zero Dipole Localization Error
Joint Authors
Grave de Peralta, Rolando
Hauk, Olaf
Gonzalez Andino, Sara
Source
Computational Intelligence and Neuroscience
Issue
Vol. 2009, Issue 2009 (31 Dec. 2009), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2009-06-17
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
A tomography of neural sources could be constructed from EEG/MEG recordings once the neuroelectromagnetic inverse problem (NIP) is solved.
Unfortunately the NIP lacks a unique solution and therefore additional constraints are needed to achieve uniqueness.
Researchers are then confronted with the dilemma of choosing one solution on the basis of the advantages publicized by their authors.
This study aims to help researchers to better guide their choices by clarifying what is hidden behind inverse solutions oversold by their apparently optimal properties to localize single sources.
Here, we introduce an inverse solution (ANA) attaining perfect localization of single sources to illustrate how spurious sources emerge and destroy the reconstruction of simultaneously active sources.
Although ANA is probably the simplest and robust alternative for data generated by a single dominant source plus noise, the main contribution of this manuscript is to show that zero localization error of single sources is a trivial and largely uninformative property unable to predict the performance of an inverse solution in presence of simultaneously active sources.
We recommend as the most logical strategy for solving the NIP the incorporation of sound additional a priori information about neural generators that supplements the information contained in the data.
American Psychological Association (APA)
Grave de Peralta, Rolando& Hauk, Olaf& Gonzalez Andino, Sara. 2009. The Neuroelectromagnetic Inverse Problem and the Zero Dipole Localization Error. Computational Intelligence and Neuroscience،Vol. 2009, no. 2009, pp.1-11.
https://search.emarefa.net/detail/BIM-488983
Modern Language Association (MLA)
Grave de Peralta, Rolando…[et al.]. The Neuroelectromagnetic Inverse Problem and the Zero Dipole Localization Error. Computational Intelligence and Neuroscience No. 2009 (2009), pp.1-11.
https://search.emarefa.net/detail/BIM-488983
American Medical Association (AMA)
Grave de Peralta, Rolando& Hauk, Olaf& Gonzalez Andino, Sara. The Neuroelectromagnetic Inverse Problem and the Zero Dipole Localization Error. Computational Intelligence and Neuroscience. 2009. Vol. 2009, no. 2009, pp.1-11.
https://search.emarefa.net/detail/BIM-488983
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-488983