Modeling and dynamics of double Hindmarsh-Rose neuron with memristor-based magnetic coupling and tim

来源 :中国物理B(英文版) | 被引量 : 0次 | 上传用户:l040685
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The firing of a neuron model is mainly affected by the following factors:the magnetic field,external forcing current,time delay,etc.In this paper,a new time-delayed electromagnetic field coupled dual Hindmarsh-Rose neuron network model is constructed.A magnetically controlled threshold memristor is improved to represent the self-connected and the coupled magnetic fields triggered by the dynamic change of neuronal membrane potential for the adjacent neurons.Numerical simulation confirms that the coupled magnetic field can activate resting neurons to generate rich firing patterns,such as spiking firings,bursting firings,and chaotic firings,and enable neurons to generate larger firing amplitudes.The study also found that the strength of magnetic coupling in the neural network also affects the number of peaks in the discharge of bursting firing.Based on the existing medical treatment background of mental illness,the effects of time lag in the coupling process against neuron firing are studied.The results confirm that the neurons can respond well to external stimuli and coupled magnetic field with appropriate time delay,and keep periodic firing under a wide range of external forcing current.
其他文献
人类的教育正处在一个大变革的前夜.这是摆在我们面前越来越清晰的事实.新世纪以来,尤其是最近几年,世界的剧变是史无前例的.rn第一,全球新冠肺炎疫情的持续蔓延.疫情实时大数据报告显示,截至12月13日,全球疫情死亡人数累计已经突破530万人,全球累计确诊超2.7亿例.疫情迫使许多学校停学,采取网络方式教学.近两年的教育实践也表明,对于大部分学生来说,在线学习是可以做到的.同时,对于在线学习的理念、技术和方法,教育界的研究也更为深入,取得了一些新成果.
期刊
A fractional-order difference equation model of a third-order discrete phase-locked loop (FODPLL) is discussed and the dynamical behavior of the model is demonstrated using bifurcation plots and a basin of attraction.We show a narrow region of loop gain w
Continuous-time memristor (CM) has been widely used to generate chaotic oscillations.However,discrete memristor(DM) has not been received adequate attention.Motivated by the cascade structure in electronic circuits,this paper intro-duces a method to casca
Since December 2019,the COVID-19 epidemic has repeatedly hit countries around the world due to various factors such as trade,national policies and the natural environment.To closely monitor the emergence of new COVID-19 clusters and ensure high prediction
The sensitivity to fault reflection is very important for larger dynamic range in fiber fault detection technique.Using time delay signature (TDS) of chaotic laser formed by optical feedback can solve the sensitivity limitation of photodetector in fiber f
When a phototube is activated to connect a neural circuit,the output voltage becomes sensitive to external illumination because the photocurrent across the phototube can be controlled by external electromagnetic wave.The channel currents from different br
At present,the global COVID-19 is still severe.More and more countries have experienced second or even third outbreaks.The epidemic is far from over until the vaccine is successfully developed and put on the market on a large scale.Inappropriate epidemic
“文学概论”是汉语言文学专业课程体系中的主干课程,是学生认识、理解和解剖社会、人生以及自身的有力武器,对于学生的精神成长具有重要意义.因此,本课程在汉语言文学专业人才培养中承担着重要的育人使命.基于此,本课程在围绕立德树人根本任务,构建思政工作大格局下,坚持知识传授、能力培养、价值引领“三位一体”,充分挖掘课程中的思政教育资源,将思政元素与教学内容深度融合,引领学生健康成长,不断提升继续教育人才培养质量和育人效果,充分发挥引领示范作用.
期刊
A simple variable-boostable system is selected as the structure for hosting an arbitrarily defined memristor for chaos producing.The derived three-dimensional (3-D) memristive chaotic system shows its distinct property of offset,amplitude and frequency co
This paper proposes a fractional-order simplest chaotic system using a bi-stable locally-active memristor.The char-acteristics of the memristor and transient transition behaviors of the proposed system are analyzed,and this circuit is implemented digitall