Evidence map›Paper›PMID 25296716›Full record

ReviewCell and tissue research2015

Spontaneous activity in the developing auditory system.

Han Chin Wang, Dwight E Bergles

Abstract readReview
In one paragraph

Review in Cell and tissue research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 83 papers.

0numbers the graph read from it
0cells of the map it votes in
83citing papers in PubMed
3.7field-weighted citation impact, top 6% of its field
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

83 citing papers in PubMed, 119 citations in OpenAlex.

  1. Article
  2. Article
  3. Spontaneous Calcium Signalling in the Developing Mammalian Cochlea.Journal of the Association for Research in Otolaryngology : JARO · 2026
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Co-release of GABA and ACh from Medial Olivocochlear Neurons as a Fine Regulatory Mechanism of Cochlear Efferent Inhibition.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. In vivo spontaneous CaNature communications · 2025
    Article
  15. Article
  16. More Than a Small Brain: The Importance of Studying Neural Function during Development.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Review
  17. Developmental encoding of natural sounds in the mouse auditory cortex.Cerebral cortex (New York, N.Y. : 1991) · 2024
    Article
  18. Article
  19. Review
  20. Article

23 more citing papers are in PubMed but not listed here.

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 at 2 institutions in 1 country.

Han Chin WangSolomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Dwight E Bergles
Johns Hopkins Medicine · USJohns Hopkins University · US

Funding

Murine Mutagenesis CoreP30NS050274 · NINDS · JOHNS HOPKINS UNIVERSITY · PI KOLODKIN, ALEX L · 2005 to 2020
$10.9M
Semaphorin Signaling and Plasticity at the Excitatory SynapseP50MH100024 · NIMH · JOHNS HOPKINS UNIVERSITY · PI HUGANIR, RICHARD L · 2013 to 2017
$9.5M
Spontaneous activity in the developing cochleaR01DC008860 · NIDCD · JOHNS HOPKINS UNIVERSITY · PI DWIGHT E BERGLES · 2008 to 2026
$7.1M
NIDCD NIH HHS R01 DC008860NIMH NIH HHS P50 MH100024NINDS NIH HHS P30 NS050274
6 · The paper itself

Abstract

Spontaneous electrical activity is a common feature of sensory systems during early development. This sensory-independent neuronal activity has been implicated in promoting their survival and maturation, as well as growth and refinement of their projections to yield circuits that can rapidly extract information about the external world. Periodic bursts of action potentials occur in auditory neurons of mammals before hearing onset. This activity is induced by inner hair cells (IHCs) within the developing cochlea, which establish functional connections with spiral ganglion neurons (SGNs) several weeks before they are capable of detecting external sounds. During this pre-hearing period, IHCs fire periodic bursts of Ca(2+) action potentials that excite SGNs, triggering brief but intense periods of activity that pass through auditory centers of the brain. Although spontaneous activity requires input from IHCs, there is ongoing debate about whether IHCs are intrinsically active and their firing periodically interrupted by external inhibitory input (IHC-inhibition model), or are intrinsically silent and their firing periodically promoted by an external excitatory stimulus (IHC-excitation model). There is accumulating evidence that inner supporting cells in Kölliker's organ spontaneously release ATP during this time, which can induce bursts of Ca(2+) spikes in IHCs that recapitulate many features of auditory neuron activity observed in vivo. Nevertheless, the role of supporting cells in this process remains to be established in vivo. A greater understanding of the molecular mechanisms responsible for generating IHC activity in the developing cochlea will help reveal how these events contribute to the maturation of nascent auditory circuits.

Indexed as

Action PotentialsCochleaHair Cells, Auditory, InnerHumansSensory Receptor CellsSpiral Ganglion

Identifiers

PMID25296716
PMCPMC7046314
OpenAlexW2063120293

What OpenQuestion holds

Textmetadata
LicenceTDM
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.