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遗传性耳聋会减少听力皮层中的α-gamma交叉频率合

Prasandhya A Yusuf¹, Peter Hubka², Wiebke Konerding²

¹Hannover Medical School, Institute of AudioNeuroTechnology and Department of Experimental Otology of the ENT Clinics, Hannover, Germany; Faculty of Medicine University of Indonesia, Department of Medical Physiology and Biophysics / Medical Technology IMERI, Jakarta, Indonesia.

Hearing research

|May 26, 2024

概括

猫的听觉剥夺会损害神经通信. 出生聋猫的脑电波模式发生了变化,失去了对处理听觉信息至关重要的同步的和α振荡.

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
计算神经科学是一种神经科学.

背景情况:

神经网络使用同步振荡来处理信息和对象表示.
听觉剥夺影响皮质振荡,影响刺激的相锁 (唤起) 和非相锁 (诱导) 活动.
出生失聪的猫 (CDCs) 显示出听力皮层活动受损,在耳植入物 (CI) 刺激后,失去了自上而下的信息流.

研究的目的:

为了研究听觉皮层中大脑振荡的交叉频率合 (CFC).
为了比较听力经验丰富的猫,电刺激的听力经验丰富的猫和电刺激的CDC中的CFC.
了解听力剥夺如何影响神经活动的同步.

主要方法:

利用匹配追踪算法来分析来自主要听觉皮层 (A1) 的局部场势.
在声学刺激的听力猫 (aHCs),电气刺激的听力猫 (eHCs) 和电气刺激的CDCs中量化交叉频率合.
在唤起和诱导的振荡活动之间进行区分.

主要成果:

在所有群体中,在70%以上的听觉响应部位中观察到显著的CFC.
听力经验丰富的猫 (aHCs和eHCs) 显示出主导的甲/α相-马功率合.
疾病预防控制中心失去了这种主要的合,显示阿尔法振荡合到三角形/三角形相位,表明网络活动发生了变化.

结论:

泰达/阿尔法振荡同步高频马活动,特别是在有听力经验的猫身上.
在CDC中没有诱导的和α振荡,这有助于减少诱导的马功率,这意味着局部网络功能受损.
听觉经验对于在听觉皮层中建立特定的交叉频率合模式至关重要.

关键词:

阿尔法乐队的阿尔法乐队.耳植入器是一种耳植入器.连接性的连接性发展发展发展发展发展听力损失听力损失泰达乐队的乐队.

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The Cochlea

The Cochlea

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.

Auditory Pathway

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.
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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.