Evidence map›Paper›PMID 23674048›Full record

ArticleJournal of computational neuroscience2013

Identification of sparse neural functional connectivity using penalized likelihood estimation and basis functions.

Dong Song, Haonan Wang, Catherine Y Tu, Vasilis Z Marmarelis, Robert E Hampson, Sam A Deadwyler, Theodore W Berger

Abstract read
In one paragraph

Article in Journal of computational neuroscience, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed.

  1. Review
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  6. Article
  7. Adjusted regularization of cortical covariance.Journal of computational neuroscience · 2018
    Article
  8. Article
  9. Sparse Large-Scale Nonlinear Dynamical Modeling of Human Hippocampus for Memory Prostheses.IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society · 2018
    Article
  10. Article
  11. Methodology of Recurrent Laguerre-Volterra Network for Modeling Nonlinear Dynamic Systems.IEEE transactions on neural networks and learning systems · 2017
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Dong SongDepartment of Biomedical Engineering, University of Southern California, 403 Hedco Neuroscience Building, Los Angeles, CA, 90089, USA, dsong@usc.edu.
Haonan Wang
Catherine Y Tu
Vasilis Z Marmarelis
Robert E Hampson
Sam A Deadwyler
Theodore W Berger

Funding

TrainingP41EB001978 · NIBIB · UNIVERSITY OF SOUTHERN CALIFORNIA · PI KHOO, MICHAEL C K · 2003 to 2017
$18.1M
WORKSHOPP41RR001861 · NCRR · UNIVERSITY OF SOUTHERN CALIFORNIA · PI E SCHARFMAN, HELEN · 1985 to 2002
$3.2M
Predictive modeling of bioelectric activity on mammalian multilayered neuronal stU01GM104604 · NIGMS · UNIVERSITY OF UTAH · PI BERGER, THEODORE W., LAZZI, GIANLUCA · 2012 to 2016
$2.8M
NCRR NIH HHS P41 RR001861NIBIB NIH HHS P41 EB001978NIGMS NIH HHS U01 GM104604
6 · The paper itself

Abstract

One key problem in computational neuroscience and neural engineering is the identification and modeling of functional connectivity in the brain using spike train data. To reduce model complexity, alleviate overfitting, and thus facilitate model interpretation, sparse representation and estimation of functional connectivity is needed. Sparsities include global sparsity, which captures the sparse connectivities between neurons, and local sparsity, which reflects the active temporal ranges of the input-output dynamical interactions. In this paper, we formulate a generalized functional additive model (GFAM) and develop the associated penalized likelihood estimation methods for such a modeling problem. A GFAM consists of a set of basis functions convolving the input signals, and a link function generating the firing probability of the output neuron from the summation of the convolutions weighted by the sought model coefficients. Model sparsities are achieved by using various penalized likelihood estimations and basis functions. Specifically, we introduce two variations of the GFAM using a global basis (e.g., Laguerre basis) and group LASSO estimation, and a local basis (e.g., B-spline basis) and group bridge estimation, respectively. We further develop an optimization method based on quadratic approximation of the likelihood function for the estimation of these models. Simulation and experimental results show that both group-LASSO-Laguerre and group-bridge-B-spline can capture faithfully the global sparsities, while the latter can replicate accurately and simultaneously both global and local sparsities. The sparse models outperform the full models estimated with the standard maximum likelihood method in out-of-sample predictions.

Indexed as

Likelihood FunctionsAlgorithmsAnimalsCA1 Region, HippocampalCA3 Region, HippocampalComputer SimulationElectrophysiological PhenomenaLinear ModelsMemoryModels, NeurologicalNeural PathwaysNeuronsRats

Identifiers

PMID23674048
PMCPMC3805829

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.