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関連する概念動画

Hearing01:31

Hearing

48.0K
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.
48.0K
The Cochlea01:13

The Cochlea

41.0K
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.
41.0K
Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

8.1K
The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
8.1K
Association Areas of the Cortex01:21

Association Areas of the Cortex

10.2K
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
10.2K
Auditory Pathway01:15

Auditory Pathway

7.1K
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...
7.1K
Auditory Perception01:17

Auditory Perception

1.5K
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...
1.5K

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Functional Imaging of Auditory Cortex in Adult Cats using High-field fMRI
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Functional Imaging of Auditory Cortex in Adult Cats using High-field fMRI

Published on: February 19, 2014

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人間の聴覚皮質の声選択領域です.

P Belin1, R J Zatorre, P Lafaille

  • 1Neuropsychology/Cognitive Neuroscience Unit, Montreal Neurological Institute, McGill University, Québec, Canada. pascal@bic.mni.mcgill.ca

Nature
|February 5, 2000
PubMed
まとめ
この要約は機械生成です。

研究者らは,上側側筋 (STS) の特定の脳領域を発見し,それが人間の声の音を処理するのに非常に選択的である. これらの音声選択領域は,スピーカーのアイデンティティと聴覚的知覚における感情的なシグナルを理解するために不可欠です.

さらに関連する動画

Combined Shuttle-Box Training with Electrophysiological Cortex Recording and Stimulation as a Tool to Study Perception and Learning
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Combined Shuttle-Box Training with Electrophysiological Cortex Recording and Stimulation as a Tool to Study Perception and Learning

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Stereotactically-guided Ablation of the Rat Auditory Cortex, and Localization of the Lesion in the Brain
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Stereotactically-guided Ablation of the Rat Auditory Cortex, and Localization of the Lesion in the Brain

Published on: October 11, 2017

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関連する実験動画

Last Updated: May 2, 2026

Functional Imaging of Auditory Cortex in Adult Cats using High-field fMRI
10:50

Functional Imaging of Auditory Cortex in Adult Cats using High-field fMRI

Published on: February 19, 2014

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Combined Shuttle-Box Training with Electrophysiological Cortex Recording and Stimulation as a Tool to Study Perception and Learning
08:43

Combined Shuttle-Box Training with Electrophysiological Cortex Recording and Stimulation as a Tool to Study Perception and Learning

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Stereotactically-guided Ablation of the Rat Auditory Cortex, and Localization of the Lesion in the Brain
09:29

Stereotactically-guided Ablation of the Rat Auditory Cortex, and Localization of the Lesion in the Brain

Published on: October 11, 2017

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科学分野:

  • 神経科学は神経科学である.
  • 聴覚知覚とは,聴覚の知覚である.
  • 認知神経科学とは

背景:

  • 人間の声の知覚には,スピーカーのアイデンティティと感情状態を特定するための複雑な音響分析が含まれています.
  • 音声知覚のニューラル基盤は,コミュニケーションにおけるその重要性にもかかわらず,ほとんど知られていません.

研究 の 目的:

  • 声の音に選択的に反応する脳の領域を特定し,特徴づけること.
  • 人間の聴覚皮質における音声知覚の神経基礎を調査する.

主な方法:

  • 機能性磁気共鳴画像 (fMRI) は,人間のボランティアにおける脳活動を測定するために使用されました.
  • 参加者は,声の音 (スピーチと非スピーチ),非声の環境音,および制御刺激を被動的に聞きました.
  • 劣化および乱読版を含む声の刺激に対する選択性について,脳の反応を分析した.

主要な成果:

  • 音声選択領域は,上側側筋 (STS) で二国間的に特定されました.
  • これらのSTS領域は,音声と非音声と対照刺激と比較して,声の音に著しく高い活性を示しました.
  • STSにおける神経応答は,音声知覚タスクにおける行動パフォーマンスと相関していた.

結論:

  • 上側側側頭筋は,音声情報を処理するための特殊な神経集団を宿している.
  • これらの発見は,STSが視覚における顔選択領域に類似して,聴覚的なオブジェクト認識において重要な役割を果たすことを示唆しています.
  • この研究は,人間の聴覚皮質の機能的構造についての理解を深める.