语音音障碍与皮质听力之间的关系唤起了潜在的潜在
Tatiane Faria Barrozo1, Liliane Aparecida Fagundes Silva1, Carla Gentile Matas1
1Department of Physiotherapy, Audiology and Speech Therapy, and Occupational Therapy, University of São Paulo, São Paulo, Brazil.
概括
在患有语音音障碍 (SSD) 的儿童中,皮质听觉唤起潜能 (CAEP) 显示出与年龄相关的延迟差异,但不是振幅. 较大的孩子通常表现出较长的CAEP延迟,无论SSD的严重程度如何.
科学领域:
- 神经科学是一个神经科学.
- 语音语言病理学 语音语言病理学
- 审计处理 审计处理
背景情况:
- 语音音障碍 (SSD) 涉及产生,感知和声学表达语音的困难.
- 听觉感知对于开发识别所需的声音表示至关重要.
- 了解皮层声音处理对于SSD研究至关重要.
研究的目的:
- 调查语音障碍严重程度之间的关系,以正确辅音 (PCC) 的百分比来衡量,以及皮质听觉唤起潜力 (CAEPs).
- 分析年龄如何影响SSD不同程度的儿童的CAEP.
主要方法:
- 29名听力正常的儿童根据SSD严重程度 (PCC指数) 被分为三组.
- 参与者进一步划分为年龄分组 (60-71,72-83,83-94个月).
- 用所有儿童的语音刺激记录了皮质听觉唤起的潜能 (CAEP).
主要成果:
- 年龄较大的孩子表现出较长的P1和N1延迟.
- 年龄显著影响了N2延迟,年龄较大的孩子表现出更长的持续时间.
- P2延迟受到年龄的影响,特别是在严重的SSD组.
结论:
- CAEP振幅不受年龄或SSD严重程度的影响.
- 在儿童中,CAEP的延迟通常随着年龄的增长而增加.
- 这些发现凸显了SSD儿童听觉皮层处理的年龄相关成熟.
相关概念视频
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 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.
Unrenewable Cells
In humans, the photoreceptor cells of the eye and sensory hair cells of the ear lack stem cells. These cells are thus unrenewable and cannot be replaced when they are damaged or destroyed.
Photoreceptors
The retina is composed of several layers and contains specialized cells called photoreceptors. The photoreceptors (rods and cones) change their membrane potential when stimulated by light energy. There are two types of photoreceptors—rods and cones—which differ in the shape of their outer...
Photoreceptors
The retina is composed of several layers and contains specialized cells called photoreceptors. The photoreceptors (rods and cones) change their membrane potential when stimulated by light energy. There are two types of photoreceptors—rods and cones—which differ in the shape of their outer...
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...
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...
Neuroplasticity
Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
Language and Cognition
Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.


