NDLI: Sparse generalized volterra model of human hippocampal spike train transformation for memory prostheses

Content Provider	IEEE Xplore Digital Library
Author	Dong Song Robinson, B.S. Hampson, R.E. Marmarelis, V.Z. Deadwyler, S.A. Berger, T.W.
Copyright Year	2015
Description	Author affiliation: Dept. of Physiol. & Pharmacology, Wake Forest Univ., Winston-Salem, NC, USA (Hampson, R.E.; Deadwyler, S.A.) \|\| Dept. of Biomed. Eng., Univ. of Southern California, Los Angeles, CA, USA (Dong Song; Robinson, B.S.; Marmarelis, V.Z.; Berger, T.W.)
Abstract	In order to build hippocampal prostheses for restoring memory functions, we build multi-input, multi-output (MIMO) nonlinear dynamical models of the human hippocampus. Spike trains are recorded from the hippocampal CA3 and CA1 regions of epileptic patients performing a memory-dependent delayed match-to-sample task. Using CA3 and CA1 spike trains as inputs and outputs respectively, second-order sparse generalized Laguerre-Volterra models are estimated with group lasso and local coordinate descent methods to capture the nonlinear dynamics underlying the spike train transformations. These models can accurately predict the CA1 spike trains based on the ongoing CA3 spike trains and thus will serve as the computational basis of the hippocampal memory prosthesis.
Starting Page	3961
Ending Page	3964
File Size	1566307
Page Count	4
File Format	PDF
ISSN	1557170X
e-ISBN	9781424492718
DOI	10.1109/EMBC.2015.7319261
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-08-25
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	MIMO Kernel Estimation Predictive models Computational modeling Prosthetics Neurons
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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