Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Convergent Evolution01:54

Convergent Evolution

Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.
The Cochlea01:13

The Cochlea

The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
Auditory Pathway01:15

Auditory Pathway

Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...
Anatomy of the Ear01:16

Anatomy of the Ear

Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...
Hearing01:31

Hearing

When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
Hair Cells01:22

Hair Cells

Hair cells are the sensory receptors of the auditory system—they transduce mechanical sound waves into electrical energy that the nervous system can understand. Hair cells are located in the organ of Corti within the cochlea of the inner ear, between the basilar and tectorial membranes. The actual sensory receptors are called inner hair cells. The outer hair cells serve other functions, such as sound amplification in the cochlea, and are not discussed in detail here.

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Naturally selected and sexually selected wing structures synergistically enhance the attractiveness of katydid acoustic signals.

Proceedings. Biological sciences·2026
Same author

Comparative Analysis of Morphological and Acoustic Correlates of Bush-Cricket Tympanic Membranes.

Computational and structural biotechnology journal·2026
Same author

Convergent evolution of harmonic hopping: multiple origins of high-frequency calls in crickets.

The Journal of experimental biology·2026
Same author

Scaled 3D-printed models of insect outer-ear with tympanic membranes and acoustic trachea preserving key acoustic features.

Computational and structural biotechnology journal·2026
Same author

The Effects of Diet on the Expression of Male Dimorphic Colouration and Weaponry in a Species of Neotropical Katydid.

Ecology and evolution·2025
Same author

Electroreception in treehoppers: How extreme morphologies can increase electrical sensitivity.

Proceedings of the National Academy of Sciences of the United States of America·2025

関連する実験動画

Updated: May 16, 2026

Selective Tracing of Auditory Fibers in the Avian Embryonic Vestibulocochlear Nerve
11:27

Selective Tracing of Auditory Fibers in the Avian Embryonic Vestibulocochlear Nerve

Published on: March 18, 2013

昆虫と哺乳類の融合した進化

Fernando Montealegre-Z1, Thorin Jonsson, Kate A Robson-Brown

  • 1School of Biological Sciences, University of Bristol, Woodland Road, Bristol, BS8 1UG, UK. fmontealegrez@lincoln.ac.uk

Science (New York, N.Y.)
|November 20, 2012
PubMed
まとめ
この要約は機械生成です。

熱帯雨林のカティディドは,インピデンス変換と信号増幅のための tympanal レバーシステムを備えた洗練された聴覚システムを所有しています. 彼らの耳は,流体ベースの波の伝播を通じてスペクトル音の分析を達成し,哺乳類の頭機能を反映しています.

さらに関連する動画

A Lightweight, Headphones-based System for Manipulating Auditory Feedback in Songbirds
10:13

A Lightweight, Headphones-based System for Manipulating Auditory Feedback in Songbirds

Published on: November 26, 2012

Data Acquisition and Analysis In Brainstem Evoked Response Audiometry In Mice
08:51

Data Acquisition and Analysis In Brainstem Evoked Response Audiometry In Mice

Published on: May 10, 2019

関連する実験動画

Last Updated: May 16, 2026

Selective Tracing of Auditory Fibers in the Avian Embryonic Vestibulocochlear Nerve
11:27

Selective Tracing of Auditory Fibers in the Avian Embryonic Vestibulocochlear Nerve

Published on: March 18, 2013

A Lightweight, Headphones-based System for Manipulating Auditory Feedback in Songbirds
10:13

A Lightweight, Headphones-based System for Manipulating Auditory Feedback in Songbirds

Published on: November 26, 2012

Data Acquisition and Analysis In Brainstem Evoked Response Audiometry In Mice
08:51

Data Acquisition and Analysis In Brainstem Evoked Response Audiometry In Mice

Published on: May 10, 2019

科学分野:

  • バイオアコースティクス バイオアコースティクス
  • 比較解剖学 比較解剖学とは
  • 進化生物学の進化生物学について

背景:

  • 哺乳類の聴覚には,鼓膜,中耳のインピデンスコンバーター,そしてコクリア周波数分析器が含まれています.
  • 昆虫の聴覚系,特にカティディッドの聴覚系は,小さくて機能的に複雑であることが知られている.

研究 の 目的:

  • 熱帯雨林のカティディッドにおける聴覚処理の生体物理的メカニズムを調査する.
  • 昆虫の聴覚機構と哺乳類の聴覚機構を比較し,収束進化に焦点を当てた.

主な方法:

  • カティディドの聴覚系の生体物理学的性質の分析.
  • テンパナルレバーシステムのインピデンス変換と増幅における役割の検討.
  • 流体ベースの波の伝播によるスペクトル音響解析の調査.

主要な成果:

  • カティディドの耳は,小さいにもかかわらず,空気から液体への阻力変換と信号増幅を行う.
  • 独特の tympanal レバーシステムは,これらの最初の聴覚処理段階を容易にします.
  • カティディドのスペクトル音の分析は,哺乳類のコクレアと類似した流体基板における分散波の伝播を経由して行われる.

結論:

  • 熱帯雨林のカティディドと哺乳類は,似たような生体物理的原理を用いて,聴覚処理のためのコンバージェントな解決策を進化させた.
  • これらの収束的ソリューションは,非常に異なる形態学的基板上で動作し,進化的適応性を強調します.
  • この研究は,これまで認識されていなかった昆虫の洗練された聴覚機構を明らかにした.