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  Blind Source Separation of Sparse Overcomplete Mixtures and Application to Neural Recordings

Notora, M., Franke, F., Munk, M., & Obermayer, K. (2009). Blind Source Separation of Sparse Overcomplete Mixtures and Application to Neural Recordings. In T. Adali, C. Jutten, J. Travassos Romano, & A. Kardec Barros (Eds.), Independent Component Analysis and Signal Separation: 8th International Conference, ICA 2009, Paraty, Brazil, March 15-18, 2009 (pp. 459-466). Berlin, Germany: Springer.

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 Creators:
Notora, M, Author
Franke, F, Author
Munk, M1, 2, Author              
Obermayer, K, Author
Affiliations:
1Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497798              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: We present a method which allows for the blind source separation of sparse overcomplete mixtures. In this method, linear filters are used to find a new representation of the data and to enhance the signal-to-noise ratio. Further, “Deconfusion”, a method similar to the independent component analysis, decorrelates the filter outputs. In particular, the method was developed to extract neural activity signals from extracellular recordings. In this sense, the method can be viewed as a combined spike detection and classification algorithm. We compare the performance of our method to those of existing spike sorting algorithms, and also apply it to recordings from real experiments with macaque monkeys.

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 Dates: 2009-03
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1007/978-3-642-00599-2_58
 Degree: -

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Title: 8th International Conference on Independent Component Analysis and Signal Separation (ICA 2009)
Place of Event: Paraty, Brazil
Start-/End Date: 2009-03-15 - 2009-03-18

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Title: Independent Component Analysis and Signal Separation: 8th International Conference, ICA 2009, Paraty, Brazil, March 15-18, 2009
Source Genre: Proceedings
 Creator(s):
Adali, T, Editor
Jutten, C, Editor
Travassos Romano, JM, Editor
Kardec Barros, A, Editor
Affiliations:
-
Publ. Info: Berlin, Germany : Springer
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 459 - 466 Identifier: ISBN: 978-3-642-00598-5

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Title: Lecture Notes in Computer Science
Source Genre: Series
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Publ. Info: -
Pages: - Volume / Issue: 5441 Sequence Number: - Start / End Page: - Identifier: -