相关实验视频

Updated: May 21, 2025

Infant Auditory Processing and Event-related Brain Oscillations

Infant Auditory Processing and Event-related Brain Oscillations

Published on: July 1, 2015

噪音对儿童和成人听觉处理的影响:时间频率分析的视角

Fauve Duquette-Laplante¹, Aurélie Belleau-Matte², Boutheina Jemel³

¹Audiology and Speech Pathology Program, School of Rehabilitation Sciences, University of Ottawa, Health Sciences Building (FHS), 200 Lees Avenue, Room 261, Ottawa, Ontario K1N 6N5, Canada; School of Speech-Language Pathology and Audiology, Université de Montréal, c.p. 6128, succ. Centre-ville, Montréal H3C 3J7, Canada; Azrieli Research Center, CHU Sainte-Justine, 3175, Côte Sainte-Catherine, Montréal, Québec H3T 1C5, Canada.

|March 22, 2025

概括

儿童比成年人更容易受到听觉噪音的影响,影响他们的大脑.

科学领域:

神经科学是一个神经科学.
听觉神经科学听觉神经科学
发育神经科学的发展神经科学.

背景情况:

听力处理能力在儿童和成年人之间有所不同.
皮层振荡活动对于理解听觉感知至关重要.
倾听条件对这些活动的影响需要进一步研究.

研究的目的:

调查听力条件如何影响儿童和成人皮质振荡活动 (三角间阶段聚类和功率).
为了比较儿童和成人在各种噪音条件下的听觉处理能力.

主要方法:

从15名成人和15名儿童身上记录了电生理学测量 (64个电极).
刺激通过双耳传递,调节诸如刺激类型,听力条件,噪声和信号对噪声比率 (SNR) 等参数.
试验间阶段集群 (ITPC) 和功率值是使用空间过的数据和复杂的Morlet波段来计算的,用混合因子ANOVAs进行分析.

主要成果:

在安静状态下,儿童比成年人表现出更强的甲基α (ta-) 试验间阶段聚类 (ITPC),特别是对于口头刺激.
在噪音方面,儿童在ta-ITPC中表现出更明显的减少,这表明与成年人相比,对噪音的敏感性增加.
阶段和功率测量都显示了与年龄相关的听觉处理差异,特别是在不同噪声和SNR水平下.

结论:

皮层相位和功率测量对听觉参数调制敏感,为听觉处理提供了洞察力.
与成年人相比,儿童对听觉噪音的敏感性增加,特别是在杂的噪音条件下.
这些发现突显了听觉处理和噪声弹性中的年龄相关差异.

关键词:

审计处理审计处理孩子孩子孩子孩子皮层振荡是指皮层的振荡.噪声噪声噪声时间频率分析.

更多相关视频

Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses

Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses

Published on: January 23, 2017

Quantitative Assessment of Cortical Auditory-tactile Processing in Children with Disabilities

Quantitative Assessment of Cortical Auditory-tactile Processing in Children with Disabilities

Published on: January 29, 2014

相关概念视频

Perceiving Loudness, Pitch, and Location

Perceiving Loudness, Pitch, and Location

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...

Perception of Sound Waves

Perception of Sound Waves

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...

Hearing

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.