Evidence map›Paper›PMID 35724322›Full record

ReviewThe Journal of experimental biology2022

Hearing without a tympanic ear.

Grace Capshaw, Jakob Christensen-Dalsgaard, Catherine E Carr

Open access · bronzeAbstract readReview
In one paragraph

Review in The Journal of experimental biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
4.0field-weighted citation impact, top 5% 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

11 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Review
  3. Biomechanics of the mandibular middle ear of the cynodontProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Rich acoustic landscapes dominated the Mesozoic.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  11. 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

3 authors at 2 institutions in 2 countries.

Grace CapshawDepartment of Biology, University of Maryland, College Park, MD 20742, USA.ORCID 0000-0002-5688-2538
Jakob Christensen-DalsgaardDepartment of Biology, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark.ORCID 0000-0002-6075-3819
Catherine E CarrDepartment of Biology, University of Maryland, College Park, MD 20742, USA.ORCID 0000-0001-5698-6014
University of Maryland, College Park · USUniversity of Southern Denmark · DK

Funding

COMPARATIVE AND EVOLUTIONARY BIOLOGY OF HEARINGT32DC000046 · NIDCD · UNIV OF MARYLAND, COLLEGE PARK · PI Catherine Emily Carr, Matthew J. Goupell · 1994 to 2026
$7.5M
CELLULAR MECHANISMS UNDERLYING SOUND LOCALIZATIONR01DC000436 · NIDCD · UNIV OF MARYLAND, COLLEGE PARK · PI CARR, CATHERINE EMILY · 1994 to 2017
$6.1M
Development of Temporal Fine structureR01DC019341 · NIDCD · UNIV OF MARYLAND, COLLEGE PARK · PI CARR, CATHERINE EMILY · 2021 to 2025
$1.6M
Carlsbergfondet 2009-01-0292NIDCD NIH HHS R01 DC000436NIDCD NIH HHS R01 DC019341NIDCD NIH HHS T32 DC-000046NIDCD NIH HHS T32 DC000046
6 · The paper itself

Abstract

The ability to sense and localize sound is so advantageous for survival that it is difficult to understand the almost 100 million year gap separating the appearance of early tetrapods and the emergence of an impedance-matching tympanic middle ear - which we normally regard as a prerequisite for sensitive hearing on land - in their descendants. Recent studies of hearing in extant atympanate vertebrates have provided significant insights into the ancestral state(s) and the early evolution of the terrestrial tetrapod auditory system. These reveal a mechanism for sound pressure detection and directional hearing in 'earless' atympanate vertebrates that may be generalizable to all tetrapods, including the earliest terrestrial species. Here, we review the structure and function of vertebrate tympanic middle ears and highlight the multiple acquisition and loss events that characterize the complex evolutionary history of this important sensory structure. We describe extratympanic pathways for sound transmission to the inner ear and synthesize findings from recent studies to propose a general mechanism for hearing in 'earless' atympanate vertebrates. Finally, we integrate these studies with research on tympanate species that may also rely on extratympanic mechanisms for acoustic reception of infrasound (<20 Hz) and with studies on human bone conduction mechanisms of hearing.

Indexed as

Ear, MiddleHearingAnimalsHumansSoundTympanic MembraneAuditoryBone conductionExtratympanicSoundVibration

Identifiers

PMID35724322
PMCPMC9250799
OpenAlexW4283159053

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.