Electric Activity Of Neurons And Cardiac Tissue Under Electromagnetic Radiation

In this paper,the electrical activity is investigated in neuronal system and cardiac tissue in biophysics respect.This behavior has complex nonlinear characteristics.Thus,it is necessary that the dynamics has been investigated in their model under the effect of electromagnetic induction considered by nonlinear methods and statistical physics,which is helpful to guide and understand in biological function respect.The main research contents and conclusions are as follows:(1)The synchronization behavior,based on an improved neuron model,is investigated by imposing external electromagnetic radiation on the coupled neurons and networks,respectively.Based on the coupling neurons considering the electromagnetic induction,synchronization is discussed in above model by using the numberical simulation and statistical analysis methods.The results have found that the synchronization degree depends on the coupling intensity and the intensity of external electromagnetic radiation.Furthermore,this neurons could be effective to reach intermittent synchronization under selecting the appropriate intensity of electromagnetic radiation.It is confirmed that synchronization can be modulate by selecting the electromagnetic radiation.(2)The electrical activities,with time-varying electromagnetic field,are investigated in cardiac tissue.Based on original Fitzhugh-Nagumo model,the spatiotemporal dynamics is studied by using numberical simulation and pattern selection.It is found that by setting specific initials in the media,can trigger and develop a spiral wave.Indeed,given that the electromagnetic radiation regarded as external stimuli on this model,the results suggested that spiral waves encounter breakup and turbulent electrical activities are observed,and it helps to give guidance to understand the occurrence of sudden heart disorder subjected to heavily electromagnetic radiation.(3)The coherence resonance on membrane potential is investigated in phase noise in neuron system with electromagnetic induction.Based on original Hodgkin-Huxley model,the effect of electromagnetic induction,based on an improved neuron model,is described by using magnetic flux,and the modulation of magnetic flux on membrane potential is substituted for using memristor-coupled by numberical simulation.It is found that double coherence resonance behavior is observed.According to observe the sampled time series for membrane potential of this model,it is also taken on the multiple modes of electrical activities.(4)The target wave propagating in cardiac tissue is investigated in excited media with electromagnetic radiation.It is fount that local periodical forcing is applied on the media in the improved cardiac model to induce the kind of continuous wave.It is found that target wave blocked and is developed into spiral wave in the media imposed electromagnetic radiation.It could accounts for the mechanism that in theory facet,the heat of abnormality can occur while it exposed to continuous electromagnetic field.In sum,the neuronal system and cardiac tissue model with electromagnetic induction not only keep up with the original dynamical mechanism,but also improve the abundant biophysics electrical activity.It is helpful to further knowledge and investigate them.