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  Low resolution conductivity estimation to improve source localization

Lew, S., Wolters, C., Anwander, A., Makeig, S., & MacLeod, R. (2007). Low resolution conductivity estimation to improve source localization. International Congress Series, 1300, 149-152. doi:10.1016/j.ics.2006.12.058.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-C4B5-6 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-DA36-7
Genre: Journal Article

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 Creators:
Lew, S., Author
Wolters, Carsten1, Author              
Anwander, Alfred2, Author              
Makeig, Scott, Author
MacLeod, R., Author
Affiliations:
1External Organizations, ou_persistent22              
2Methods and Development Unit Cortical Networks and Cognitive Functions, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634557              

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Free keywords: Conductivity estimation, Skull conductivity, Source localization, Simulated annealing, Optimized volume conductor
 Abstract: Bioelectric source localization in the brain is sensitive to geometry and conductivity properties of the different head tissues. We propose a method that individually optimizes a realistically-shaped volume conductor with regard to the conductivities using a simulated annealing optimizer in discrete parameter space. We show that the method is able to simultaneously reconstruct two reference sources and a reference skull:brain conductivity ratio even in the presence of realistic noise. The individually optimized head model can then be used for the analysis of clinical or cognitive data.

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Language(s): eng - English
 Dates: 2007
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 345827
Other: P7833
DOI: 10.1016/j.ics.2006.12.058
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Title: International Congress Series
Source Genre: Journal
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Pages: - Volume / Issue: 1300 Sequence Number: - Start / End Page: 149 - 152 Identifier: -