Evidence map›Paper›PMID 25972787›Full record

ArticleFrontiers in neural circuits2015

Spatial organization of excitatory synaptic inputs to layer 4 neurons in mouse primary auditory cortex.

Megan B Kratz, Paul B Manis

Abstract read
In one paragraph

Article in Frontiers in neural circuits, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed.

  1. Article
  2. Article
  3. Patchy harmonic functional connectivity of the mouse auditory cortex.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Development of Auditory Cortex Circuits.Journal of the Association for Research in Otolaryngology : JARO · 2021
    Review
  8. Article
  9. Article
  10. Thalamocortical and Intracortical Inputs Differentiate Layer-Specific Mouse Auditory Corticocollicular Neurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2019
    Article
  11. Article
  12. A metaplasticity view of the interaction between homeostatic and Hebbian plasticity.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2017
    Review
  13. Article
  14. Article
  15. Article
  16. Mapping Auditory Synaptic Circuits with Photostimulation of Caged Glutamate.Methods in molecular biology (Clifton, N.J.) · 2016
    Article
  17. Article
  18. 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.

Megan B KratzDepartment of Otolaryngology/Head and Neck Surgery, University of North Carolina at Chapel Hill Chapel Hill, NC, USA ; The Curriculum in Neurobiology, University of North Carolina Chapel Hill, NC, USA.
Paul B ManisDepartment of Otolaryngology/Head and Neck Surgery, University of North Carolina at Chapel Hill Chapel Hill, NC, USA ; The Curriculum in Neurobiology, University of North Carolina Chapel Hill, NC, USA ; Department of Cell Biology and Physiology, University of North Carolina Chapel Hill, NC, USA.

Funding

RESEARCH TRAINING IN THE NEUROSCIENCEST32NS007431 · NINDS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Juan Song, Mark J. Zylka · 1997 to 2026
$10.0M
Auditory Cortex: Synaptic organization and plasticityR01DC009809 · NIDCD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI MANIS, PAUL B · 2011 to 2015
$2.0M
NIDCD NIH HHS R01 DC009809NINDS NIH HHS T32 NS007431
6 · The paper itself

Abstract

Layer 4 (L4) of primary auditory cortex (A1) receives a tonotopically organized projection from the medial geniculate nucleus of the thalamus. However, individual neurons in A1 respond to a wider range of sound frequencies than would be predicted by their thalamic input, which suggests the existence of cross-frequency intracortical networks. We used laser scanning photostimulation and uncaging of glutamate in brain slices of mouse A1 to characterize the spatial organization of intracortical inputs to L4 neurons. Slices were prepared to include the entire tonotopic extent of A1. We find that L4 neurons receive local vertically organized (columnar) excitation from layers 2 through 6 (L6) and horizontally organized excitation primarily from L4 and L6 neurons in regions centered ~300-500 μm caudal and/or rostral to the cell. Excitatory horizontal synaptic connections from layers 2 and 3 were sparse. The origins of horizontal projections from L4 and L6 correspond to regions in the tonotopic map that are approximately an octave away from the target cell location. Such spatially organized lateral connections may contribute to the detection and processing of auditory objects with specific spectral structures.

Indexed as

Brain MappingAlgorithmsAnimalsAuditory CortexAuditory PathwaysExcitatory Postsynaptic PotentialsMiceNeuronsPatch-Clamp Techniquesbrain sliceglutamate uncagingintracortical circuitsneocortical circuitspatch clampspectral integrationthalamocortical recipient neurons

Identifiers

PMID25972787
PMCPMC4413692

What OpenQuestion holds

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LicenceCC BY
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.