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相关概念视频

Auditory Perception01:17

Auditory Perception

364
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...
364
Perceiving Loudness, Pitch, and Location01:21

Perceiving Loudness, Pitch, and Location

239
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...
239
Hearing01:31

Hearing

52.5K
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.
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Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

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Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
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Auditory Pathway01:15

Auditory Pathway

5.5K
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...
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Perception of Sound Waves01:01

Perception of Sound Waves

4.5K
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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相关实验视频

Updated: Jul 18, 2025

Mapping Cortical Dynamics Using Simultaneous MEG/EEG and Anatomically-constrained Minimum-norm Estimates: an Auditory Attention Example
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用扰乱的听觉空间线索捕捉视觉注意力

Chiara Valzolgher1,2, Mariam Alzaher3,4, Valérie Gaveau2

  • 1Center for Mind/Brain Sciences - CIMeC, University of Trento, Rovereto, Italy.

Trends in hearing
|August 23, 2023
PubMed
概括
此摘要是机器生成的。

双边耳植入物 (CI) 或单边听力损失 (uHL) 的人仍然可以使用声音来引导视觉注意力. 然而,这种能力在单方面CI用户中受损,突出显示了听力损失对多感官相互作用的更广泛影响.

关键词:
审计线索 审计线索双耳式听力 双耳式听力耳植入器是什么意思多传感器的多传感器选择性注意力 选择性注意力空间听力 空间听力单方面的听力损失.

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Last Updated: Jul 18, 2025

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科学领域:

  • 听觉神经科学 听觉神经科学
  • 认知心理学 认知心理学
  • 听力学 听力学是指听力学.

背景情况:

  • 侧向声音自动引导视觉注意力,增强视听处理.
  • 耳植入物 (CI) 或单边听力损失 (uHL) 的听觉空间线索可能会影响这种注意力机制.
  • 了解这些影响对于评估听力障碍对多感官一体化的全部影响至关重要.

研究的目的:

  • 调查听力损失患者的视听注意力定向的完整性.
  • 为了比较双边CI使用者,单边CI使用者和患有uHL的个体的注意力定向能力.
  • 评估这些人群的空间听力技能和视听导向之间的关系.

主要方法:

  • 在60名听力损失的成年人和20名听力正常 (NH) 控制者中利用视觉注意力捕捉范式使用声音.
  • 参与者包括双边CI使用者 (N=20),单边CI使用者 (N=20) 和uHL个人 (N=20).
  • NH参与者在双耳和单耳 (耳塞) 条件下进行了测试;所有参与者都完成了声音定位任务.

主要成果:

  • 视听导向在双边CI用户,uHL个人和双耳NH参与者之间是可比的.
  • 在单方面CI用户和单声NH听众中,导向显著减少.
  • 空间听力技能与单边CI用户的视听导向相关,并且在双耳听力保留的参与者中通常更好.

结论:

  • 视听注意力定向在双边CI使用者和uHL患者中在很大程度上保留,但在单边CI使用者中受损.
  • 这些发现强调了评估听力损失对超越单纯听觉功能的多感官相互作用的影响的重要性.
  • 听力损失,特别是单边的听力损失,会阻碍在视听环境中的典型互动.