Evidence map›Paper›PMID 20204080›Full record

ArticleNeural plasticity2009

Plasticity of horizontal connections at a functional border in adult rat somatosensory cortex.

Sally A Marik, Peter W Hickmott

Abstract read
In one paragraph

Article in Neural plasticity, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
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

2 authors.

Sally A MarikLaboratory of Neurobiology, The Rockefeller University, 1230 York Avenue, New York, NY 10065, USA.
Peter W Hickmott

Funding

Local Circuit Properties Underlying Cortical PlasticityR01NS042241 · NINDS · UNIVERSITY OF CALIFORNIA RIVERSIDE · PI HICKMOTT, PETER WARD · 2001 to 2004
$1.2M
NINDS NIH HHS NS 42241-01NINDS NIH HHS R01 NS042241
6 · The paper itself

Abstract

Horizontal connections in superficial cortical layers integrate information across sensory maps by connecting related functional columns. It has been hypothesized that these connections mediate cortical reorganization via synaptic plasticity. However, it is not known if the horizontal connections from discontinuous cortical regions can undergo plasticity in the adult. Here we located the border between two discontinuous cortical representations in vivo and used either pairing or low-frequency stimulation to induce synaptic plasticity in the horizontal connections surrounding this border in vitro. Individual neurons revealed significant and diverse forms of synaptic plasticity for horizontal connections within a continuous representation and discontinuous representations. Interestingly, both enhancement and depression were observed following both plasticity paradigms. Furthermore, plasticity was not restricted by the border's presence. Depolarization in the absence of synaptic stimulation also produced synaptic plasticity, but with different characteristics. These experiments suggest that plasticity of horizontal connections may mediate functional reorganization.

Indexed as

Action PotentialsAnimalsElectric StimulationExcitatory Postsynaptic PotentialsFemaleGlutamic AcidInhibitory Postsynaptic PotentialsLong-Term PotentiationNeural InhibitionNeural PathwaysNeuronal PlasticityNeuronsOrgan Culture TechniquesRatsRats, Sprague-DawleyReceptors, N-Methyl-D-AspartateGlutamic AcidReceptors, N-Methyl-D-Aspartate

Identifiers

PMID20204080
PMCPMC2832108

What OpenQuestion holds

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Registered trials

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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.