Evidence map›Paper›PMID 26834620›Full record

ArticleFrontiers in neuroinformatics2016

Generalized Laminar Population Analysis (gLPA) for Interpretation of Multielectrode Data from Cortex.

Helena T Głąbska, Eivind Norheim, Anna Devor, Anders M Dale, Gaute T Einevoll, Daniel K Wójcik

Abstract read
In one paragraph

Article in Frontiers in neuroinformatics, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

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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

6 authors.

Helena T GłąbskaLaboratory of Neuroinformatics, Department of Neurophysiology, Nencki Institute of Experimental Biology of the Polish Academy of Sciences Warsaw, Poland.
Eivind NorheimDepartment of Mathematical Sciences and Technology, Norwegian University of Life Sciences Aas, Norway.
Anna DevorDepartments of Neurosciences and Radiology, University of CaliforniaSan Diego, La Jolla, CA, USA; Martinos Center for Biomedical Imaging, Harvard Medical School, Massachusetts General HospitalCharlestown, MA, USA.
Anders M DaleDepartments of Neurosciences and Radiology, University of California San Diego, La Jolla, CA, USA.
Gaute T EinevollDepartment of Mathematical Sciences and Technology, Norwegian University of Life SciencesAas, Norway; Department of Physics, University of OsloOslo, Norway.
Daniel K WójcikLaboratory of Neuroinformatics, Department of Neurophysiology, Nencki Institute of Experimental Biology of the Polish Academy of Sciences Warsaw, Poland.

Funding

Neuronal, glial and BOLD fMRI signals: From BOLD to 2-photon microscopyR01NS057198 · NINDS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI DEVOR, ANNA · 2009 to 2017
$2.6M
NINDS NIH HHS R01 NS057198
6 · The paper itself

Abstract

Laminar population analysis (LPA) is a method for analysis of electrical data recorded by linear multielectrodes passing through all lamina of cortex. Like principal components analysis (PCA) and independent components analysis (ICA), LPA offers a way to decompose the data into contributions from separate cortical populations. However, instead of using purely mathematical assumptions in the decomposition, LPA is based on physiological constraints, i.e., that the observed LFP (low-frequency part of signal) is driven by action-potential firing as observed in the MUA (multi-unit activity; high-frequency part of the signal). In the presently developed generalized laminar population analysis (gLPA) the set of basis functions accounting for the LFP data is extended compared to the original LPA, thus allowing for a better fit of the model to experimental data. This enhances the risk for overfitting, however, and we therefore tested various versions of gLPA on virtual LFP data in which we knew the ground truth. These synthetic data were generated by biophysical forward-modeling of electrical signals from network activity in the comprehensive, and well-known, thalamocortical network model developed by Traub and coworkers. The results for the Traub model imply that while the laminar components extracted by the original LPA method overall are in fair agreement with the ground-truth laminar components, the results may be improved by use of gLPA method with two (gLPA-2) or even three (gLPA-3) postsynaptic LFP kernels per laminar population.

Indexed as

computational neuroscienceLFP analysislocal field potential (LFP)model-based analysisMUAmulti-unit activitysignal decompositionthalamocortical

Identifiers

PMID26834620
PMCPMC4724720

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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.