听觉神经元中由混乱活动诱导的复杂的动态行为转换
Guodong Huang1, Shu Zhou1, Rui Zhu1
1School of Mathematics and Physics, Shanghai University of Electric Power, Shanghai, 201306, China.
Bio Systems
|October 24, 2024
概括
本研究介绍了一个简化的神经元模型,展示了混乱电流如何通过混乱共振 (CR) 增强信号复杂性. 这一发现为改善安全通信系统提供了一种新的方法.
科学领域:
- 神经科学是一个神经科学.
- 复杂的系统复杂的系统.
- 信号处理 信号处理
背景情况:
- 混乱序列对于安全通信至关重要,因为它们固有的随机性.
- 混乱共振 (CR) 描述了一个系统对弱混乱信号的共振反应,但实际应用是有限的.
- 在混沌和听觉刺激的结合下了解神经元动态对于高级通信至关重要.
研究的目的:
- 设计和分析一个简化的FitzHugh-Nagumo (FHN) 听觉神经元模型.
- 调查混沌活动和声音信号对神经元动态的影响.
- 探索混沌电流在增强序列复杂性以实现安全通信方面的潜力.
主要方法:
- 模拟听力神经元的生理活动,使用简化的菲茨休-纳古莫模型.
- 应用混沌活动和声音信号的联合刺激.
- 测量了序列复杂性和分析了神经元输出动态.
主要成果:
- 发现神经元动态取决于外部声音刺激和混乱电流强度.
- 混沌电流通过CR诱导神经元输出的尖峰,随着电流强度的增加而增加,导致混乱状态.
- 混乱的电流增强了原始序列的复杂性,在更高的强度下增强了更大的复杂性.
- 最初值的灵敏度转移到混乱的电流激发系统.
结论:
- 简化的FHN模型有效地证明了听觉神经元中的CR.
- 混乱电流提供了一种可行的方法来增强混乱序列的复杂性,提高它们对安全通信的适用性.
- 这项研究通过利用神经模型中的混乱动态来提供一种安全通信的新方法.
更多相关视频
10:50Behavioral Determination of Stimulus Pair Discrimination of Auditory Acoustic and Electrical Stimuli Using a Classical Conditioning and Heart-rate Approach
Published on: June 6, 2012
14.5K
09:13A Fully Automated and Highly Versatile System for Testing Multi-cognitive Functions and Recording Neuronal Activities in Rodents
Published on: May 3, 2012
14.3K
相关概念视频
Auditory Pathway
5.1K
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...
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking...
5.1K
The Cochlea
44.6K
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.
44.6K
Neural Circuits
1.1K
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
1.1K
Hair Cells
40.1K
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.
40.1K
Action Potential
7.8K
Neurons communicate by firing action potentials—the electrochemical signal that is propagated along the axon. The signal results in the release of neurotransmitters at axon terminals, thereby transmitting information to the nervous system. An action potential is a specific "all-or-none" change in membrane potential that results in a rapid spike in voltage.
Membrane potential in neurons
Neurons typically have a resting membrane potential of about -70 millivolts (mV). When they...
Membrane potential in neurons
Neurons typically have a resting membrane potential of about -70 millivolts (mV). When they...
7.8K
