摘要
着眼于嗅觉神经系统的生物学特点,从仿生学角度提出了一种嗅觉神经系统整合模型。模型从不同角度进行对嗅觉神经系统进行仿真,使其尽可能贴近嗅觉神经系统的生理学特征。首先,在结构上,根据嗅觉神经系统解剖结构,完整体现了嗅觉系统的三个关键部分,以及它们之间的延时和反馈链接。其次,在神经元模型上,根据嗅觉系统不同部分的特点采用不同的神经元模型进行模拟。最后,在模型的神经动力学上,模型能够及时响应外界刺激。在刺激持续输入时,模型输出呈现出稳定的振荡模式;在特定刺激输入时,模型状态呈现有节奏的极限环状态。
According to the biology characteristics of olfactory neural system,an olfactory neural system integrated model was proposed based on bionics.The proposed olfactory model simulated olfactory neural system from different aspects in order to make the model similar to the characteristics of olfactory neural system as soon as possible.Firstly,to the structure of olfactory neural system,the model simulated three key parts of olfactory neural system,the delay and feedback among them based on the anatomical structure of olfactory neural system.Secondly,to the neuron model,different models were used to simulate different neurons in different parts of olfactory neural system.Finally,to the dynamics of model,the model could give response to stimulus.When the stimulus is durative,the output of model shows steady pattern.When the special stimulus is inputted,the output of model shows the pattern of limit cycle.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2011年第8期1590-1593,1597,共5页
Journal of System Simulation
基金
国家自然科学基金(60901080)
国家863重点项目(2009AA010314)
中国博士后科学基金项目(20100480219)
