Evidence map›Paper›PMID 29668858›Full record

ArticleCerebral cortex (New York, N.Y. : 1991)2019

Densities and Laminar Distributions of Kv3.1b-, PV-, GABA-, and SMI-32-Immunoreactive Neurons in Macaque Area V1.

Jenna G Kelly, Virginia García-Marín, Bernardo Rudy, Michael J Hawken

Abstract read
In one paragraph

Article in Cerebral cortex (New York, N.Y. : 1991), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed.

  1. Calcium-Binding Protein Expression Cannot Serve as a General Classifier for GABAergic Neurons in the Macaque Cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
    Article
  2. Neuropixels reveal laminar microcircuit organization in monkey V1 in vivo.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Neuropixels reveal structure-function relationships in monkey V1bioRxiv : the preprint server for biology · 2025
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  15. Functional Clusters of Neurons in Layer 6 of Macaque V1.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
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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

4 authors.

Jenna G KellyCenter for Neural Science, New York University, New York, NY, USA.
Virginia García-MarínCenter for Neural Science, New York University, New York, NY, USA.
Bernardo RudyNew York University Neuroscience Institute, New York University School of Medicine, Smilow Research Building Sixth Floor, 522 First Ave., New York, NY, USA.
Michael J HawkenCenter for Neural Science, New York University, New York, NY, USA.

Funding

The role of genetic and activity dependent cues in the generation of 5HT3aR interneuron diversityP01NS074972 · NINDS · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI MACHOLD, ROBERT P · 2012 to 2023
$15.5M
Vision Core Grant- Design and Fabrication ModuleP30EY013079 · NEI · NEW YORK UNIVERSITY · PI MOVSHON, J ANTHONY · 2000 to 2025
$14.2M
EXPRESSION AND FUNCTION OF K+ CHANNEL GENES IN THE CNSR01NS030989 · NINDS · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI RUDY, BERNARDO · 1992 to 2015
$6.3M
TRAINING IN VISUAL NEUROSCIENCET32EY007136 · NEI · NEW YORK UNIVERSITY · PI J ANTHONY MOVSHON · 1993 to 2026
$5.3M
NEI NIH HHS P30 EY013079NEI NIH HHS T32 EY007136NINDS NIH HHS P01 NS074972NINDS NIH HHS R01 NS030989
6 · The paper itself

Abstract

The Kv3.1b potassium channel subunit is associated with narrow spike widths and fast-spiking properties. In macaque primary visual cortex (V1), subsets of neurons have previously been found to be Kv3.1b-immunoreactive (ir) but not parvalbumin (PV)-ir or not GABA-ir, suggesting that they may be both fast-spiking and excitatory. This population includes Meynert cells, the large layer 5/6 pyramidal neurons that are also labeled by the neurofilament antibody SMI-32. In the present study, triple immunofluorescence labeling and confocal microscopy were used to measure the distribution of Kv3.1b-ir, non-PV-ir, non-GABA-ir neurons across cortical depth in V1, and to determine whether, like the Meynert cells, other Kv3.1b-ir excitatory neurons were also SMI-32-ir pyramidal neurons. We found that Kv3.1b-ir, non-PV-ir, non-GABA-ir neurons were most prevalent in the M pathway-associated layers 4 Cα and 4B. GABAergic neurons accounted for a smaller fraction (11%) of the total neuronal population across layers 1-6 than has previously been reported. Of Kv3.1b-ir neurons, PV expression reliably indicated GABA expression. Kv3.1b-ir, non-PV-ir neurons varied in SMI-32 coimmunoreactivity. The results suggest the existence of a heterogeneous population of excitatory neurons in macaque V1 with the potential for sustained high firing rates, and these neurons were particularly abundant in layers 4B and 4 Cα.

Indexed as

AnimalsCell Countgamma-Aminobutyric AcidMacaca fascicularisMacaca mulattaMaleNeurofilament ProteinsNeuronsParvalbuminsShaw Potassium ChannelsVisual Cortexgamma-Aminobutyric AcidNeurofilament ProteinsParvalbuminsShaw Potassium Channelsexcitatory neuronsfast-spikingKv3.1b potassium channel subunitparvalbuminprimary visual cortex

Identifiers

PMID29668858
PMCPMC6458914

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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.