Presentation 2012-12-12
Sparse Estimation of Spike-Triggered Average
Shimpei Yotsukura, Toshiaki Omori, Kenji Nagata, Masato Okada,
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Abstract(in English) Spike triggered average (STA) and phase response curve characterize response properties of single neurons. A recent theoretical study proposed a method to estimate the phase response curve by means of linear regression with Fourier basis functions. In this study, we propose a method to estimate the STA by means of sparse linear regression with Fourier and polynomial basis functions. By sparse estimation with L1 regularization, we extract substantial basis functions for the STA in the proposed method. We show using simulated data that the proposed method achieves more accurate estimation of the STA than simple trial average used in conventional method.
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Keyword(in English) Spike-triggered average / curve fitting / L1 regularization
Paper # NC2012-87
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Committee NC
Conference Date 2012/12/5(1days)
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Registration To Neurocomputing (NC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Sparse Estimation of Spike-Triggered Average
Sub Title (in English)
Keyword(1) Spike-triggered average
Keyword(2) curve fitting
Keyword(3) L1 regularization
1st Author's Name Shimpei Yotsukura
1st Author's Affiliation The University of Tokyo()
2nd Author's Name Toshiaki Omori
2nd Author's Affiliation Kobe University
3rd Author's Name Kenji Nagata
3rd Author's Affiliation The University of Tokyo
4th Author's Name Masato Okada
4th Author's Affiliation The University of Tokyo
Date 2012-12-12
Paper # NC2012-87
Volume (vol) vol.112
Number (no) 345
Page pp.pp.-
#Pages 6
Date of Issue