Evidence map›Paper›PMID 11724945›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2001

Comparison of a hair bundle's spontaneous oscillations with its response to mechanical stimulation reveals the underlying active process.

P Martin, A J Hudspeth, F Jülicher

Abstract readComparative Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers.

0numbers the graph read from it
0cells of the map it votes in
90citing 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

90 citing papers in PubMed.

  1. Identification and quantification of irreversibility in stochastic systems.Physical chemistry chemical physics : PCCP · 2026
    Review
  2. Transiently amplified fluctuations assemble dissipative materials.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Electrical Control of the Transduction Channels' Gating Force in Mechanosensory Hair Cells.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  4. Stochastic motility energetics reveals cooperative bacterial swarming in optical tweezers.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  5. Article
  6. A mosquito-inspired theoretical framework for acoustic signal detection.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  7. Amplification through local critical behavior in the mammalian cochlea.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  8. The Critical Thing about the Ear's Sensory Hair Cells.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review of chaos in hair-cell dynamics.Frontiers in neurology · 2024
    Review
  14. Review
  15. Article
  16. Vestibular Drop Attacks and Meniere's Disease as Results of Otolithic Membrane Damage-A Numerical Model.Journal of the Association for Research in Otolaryngology : JARO · 2023
    Article
  17. Article
  18. Article
  19. Whistling While it Works: Spontaneous Otoacoustic Emissions and the Cochlear Amplifier.Journal of the Association for Research in Otolaryngology : JARO · 2022
    Review
  20. Article

30 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

3 authors.

P MartinHoward Hughes Medical Institute and Laboratory of Sensory Neuroscience, The Rockefeller University, 1230 York Avenue, New York, NY 10021-6399, USA.
A J Hudspeth
F Jülicher

Funding

TRANSDUCTION MECHANISM OF HAIR CELLSR01DC000241 · NIDCD · UNIVERSITY OF TEXAS SW MED CTR/DALLAS · PI HUDSPETH, ALBERT JAMES · 1989 to 2011
$4.1M
ELECTROPHYSIOLOGICAL STUDIES OF THE VOMERONASAL SYSTEMF32DC000241 · NIDCD · WORCESTER FOUNDATION FOR BIOMEDICAL RES · PI JANG, TAICHANG · 1996 to 1998
–
NIDCD NIH HHS DC00241NIDCD NIH HHS F32 DC000241NIDCD NIH HHS R01 DC000241
6 · The paper itself

Abstract

Hearing relies on active filtering to achieve exquisite sensitivity and sharp frequency selectivity. In a quiet environment, the ears of many vertebrates become unstable and emit one to several tones. These spontaneous otoacoustic emissions, the most striking manifestation of the inner ear's active process, must result from self-sustained mechanical oscillations of aural constituents. The mechanoreceptive hair bundles of hair cells in the bullfrog's sacculus have the ability to amplify mechanical stimuli and oscillate spontaneously. By comparing a hair bundle's spontaneous oscillations with its response to small mechanical stimuli, we demonstrate a breakdown in a general principle of equilibrium thermodynamics, the fluctuation-dissipation theorem. We thus confirm that a hair bundle's spontaneous movements are produced by energy-consuming elements within the hair cell. To characterize the dynamical behavior of the active process, we introduce an effective temperature that, for each frequency component, quantifies a hair bundle's deviation from thermal equilibrium. The effective temperature diverges near the bundle's frequency of spontaneous oscillation. This behavior, which is not generic for active oscillators, can be accommodated by a simple model that characterizes quantitatively the fluctuations of the spontaneous movements as well as the hair bundle's linear response function.

Indexed as

AnimalsElasticityHair Cells, AuditoryHearingIn Vitro TechniquesModels, BiologicalOscillometryOtoacoustic Emissions, SpontaneousRana catesbeianaStress, MechanicalTemperature

Identifiers

PMID11724945
PMCPMC64690

What OpenQuestion holds

Textmetadata
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.