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関連する概念動画

Perceiving Loudness, Pitch, and Location01:21

Perceiving Loudness, Pitch, and Location

1.2K
The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
1.2K
Hearing01:31

Hearing

58.0K
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.
58.0K
Auditory Perception01:17

Auditory Perception

1.3K
The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the...
1.3K
Auditory Pathway01:15

Auditory Pathway

7.8K
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...
7.8K
The Cochlea01:13

The Cochlea

51.9K
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.
51.9K
Perception of Sound Waves01:01

Perception of Sound Waves

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The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...
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関連する実験動画

Updated: Mar 2, 2026

Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention
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Published on: December 20, 2024

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聴覚障害を持つリスナーにおける空間的聴覚変化検出

Katarina C Poole1, Simon With2, Vincent Martin3

  • 1Dyson School of Design Engineering, Imperial College London, London, United Kingdom.

Hearing research
|February 28, 2026
PubMed
まとめ

聴覚障害、高齢、および低い音響・時間感度スペクトルは、複雑な環境での新しい音の検出を遅らせる。音源位置も検出精度に影響を与え、特に後方から発せられる音で顕著である。

キーワード:
変化検出聴覚障害騒音下聴取心理物理学状況認識空間的注意空間オーディオ

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A Method to Study Adaptation to Left-Right Reversed Audition
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Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss

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関連する実験動画

Last Updated: Mar 2, 2026

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科学分野:

  • 聴覚神経科学
  • 音響心理学
  • 人間の聴覚知覚

背景:

  • 日常の聴取では、変化を検出するために背景音を自動的に監視する必要があります。
  • 状況認識は聴覚変化検出に依存しますが、その障害は十分に理解されていません。
  • 感覚神経性難聴は高齢者によく見られ、聴覚モニタリングに影響を与える可能性があります。

研究 の 目的:

  • 感覚神経性難聴のばらつきが空間的聴覚変化検出にどのように影響するかを調査すること。
  • 聴覚障害の特性と空間的変化検出タスクのパフォーマンスとの関係を決定すること。
  • 聴覚障害者における聴覚変化検出に対する音源位置の影響を探求すること。

主な方法:

  • 30人の高齢の聴覚障害を持つリスナーが空間的変化検出タスクを実行しました。
  • 聴覚障害は、聴力測定閾値、レベル変化感度、および音響・時間感度スペクトルによって特徴付けられました。
  • 反応時間、正答率、誤警報率を聴覚障害因子と空間的位置に対して分析しました。

主要な成果:

  • 音響・時間感度スペクトルの低下、聴覚閾値の上昇、および高齢は、音の検出の遅延と精度の低下と相関していました。
  • レベルの小さな変化に対する感度は、検出パフォーマンスを予測しませんでした。
  • 前方または側方から発せられる音よりも、後方から発せられる音源は検出精度が低く、検出も遅かった。これは、音響以外の注意の影響を示唆しています。

結論:

  • 聴覚障害、年齢、および空間的位置は、動的な聴覚シーンを監視する能力に大きく影響します。
  • 音響・時間感度スペクトルは、補聴器のフィッティングや状況認識に関連する非音声聴覚処理の潜在的な臨床測定値です。
  • 聴覚障害における聴覚変化検出の障害には、特に後方聴覚野の音に対する注意メカニズムが関与する可能性があります。