Batista C A S, Viana R L, Ferrari F A S, Lopes S R, Batista A M, Coninck J C P
Departament of Physics, Federal University of Paraná, Curitiba, Paraná, Brazil.
Phys Rev E Stat Nonlin Soft Matter Phys. 2013 Apr;87(4):042713. doi: 10.1103/PhysRevE.87.042713. Epub 2013 Apr 16.
Thermally sensitive neurons present bursting activity for certain temperature ranges, characterized by fast repetitive spiking of action potential followed by a short quiescent period. Synchronization of bursting activity is possible in networks of coupled neurons, and it is sometimes an undesirable feature. Control procedures can suppress totally or partially this collective behavior, with potential applications in deep-brain stimulation techniques. We investigate the control of bursting synchronization in small-world networks of Hodgkin-Huxley-type thermally sensitive neurons with chemical synapses through two different strategies. One is the application of an external time-periodic electrical signal and another consists of a time-delayed feedback signal. We consider the effectiveness of both strategies in terms of protocols of applications suitable to be applied by pacemakers.
热敏神经元在特定温度范围内呈现爆发活动,其特征是动作电位快速重复发放,随后是短暂的静止期。在耦合神经元网络中,爆发活动的同步是可能的,而这有时是一个不良特征。控制程序可以完全或部分抑制这种集体行为,在深部脑刺激技术中有潜在应用。我们通过两种不同策略研究具有化学突触的霍奇金 - 赫胥黎型热敏神经元小世界网络中爆发同步的控制。一种是施加外部时间周期电信号,另一种是由延时反馈信号组成。我们从适合起搏器应用的方案角度考虑这两种策略的有效性。