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Disambiguating Different Covariation Types

Brody, Carlos D. (1999) Disambiguating Different Covariation Types. Neural Computation, 11 (7). pp. 1527-1535. ISSN 0899-7667. http://resolver.caltech.edu/CaltechAUTHORS:20111201-143851335

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Abstract

Covariations in neuronal latency or excitability can lead to peaks in spike train covariograms that may be very similar to those caused by spike timing synchronization (see companion article). Two quantitative methods are described here. The first is a method to estimate the excitability component of a covariogram, based on trial-by-trial estimates of excitability. Once estimated, this component may be subtracted from the covariogram, leaving only other types of contributions. The other is a method to determine whether the covariogram could potentially have been caused by latency covariations.


Item Type:Article
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http://dx.doi.org/10.1162/089976699300016124DOIUNSPECIFIED
http://www.mitpressjournals.org/doi/abs/10.1162/089976699300016124PublisherUNSPECIFIED
Additional Information:© 1999 Massachusetts Institute of Technology. Received October 20, 1997; accepted November 25, 1998. Posted Online March 13, 2006. I am grateful to John Hopfield and members of his group, Sanjoy Mahajan, Sam Roweis, and Erik Winfree, for discussion and critical readings of the manuscript for this article. I also thank John Hopfield for support. I thank George Gerstein, Kyle Kirkland, and Adam Sillito for discussion, and the anonymous reviewers for helpful comments. This work was supported by a Fulbright/CONACYT graduate fellowship and by NSF Cooperative Agreement EEC-9402726. All simulations and analyses were done in Matlab 5 (Mathworks, Inc., Natick, MA), except for the latency search, which also used some subroutines hand-compiled into C. The code for all of these, including the code to reproduce each of the figures, can be found at http://www.cns.caltech.edu/~carlos/correlations.html.
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Fulbright/CONACYT Graduate Fellowship UNSPECIFIED
NSF Cooperative Agreement EEC-9402726
Record Number:CaltechAUTHORS:20111201-143851335
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20111201-143851335
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:28279
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:19 Jan 2012 22:51
Last Modified:26 Dec 2012 14:33

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