文献类型：会议论文

英文题名：Energy coding and energy functions for local activities of the brain

作者：Wang, Rubin[1];Zhang, Zhikang[1];Chen, Guanrong[2]

机构：[1]E China Univ Sci & Technol, Sch Informat Sci & Engn, Inst Cognit Neurodynam, Shanghai 200237, Peoples R China;[2]City Univ Hong Kong, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China

会议论文集：10th Engineering Applications of Neural Networks

会议日期：2007

会议地点：Thessaloniki, GREECE

语种：英文

外文关键词：Coupling of neural energy; Energy coding; Neural oscillator; Hamiltonian function; Membrane potential; Action potential

摘要：in this paper, the intrinsic relationship between energy consumption and neural information coding in local neural networks of the cerebral cortex is studied. The energy functions of a variety of membrane potential are obtained under some conditions of mutual coupling at both the supra-threshold and the sub-threshold states in a neural population. These energy functions can accurately reproduce excitatory postsynaptic potentials (EPSP), inhibitory postsynaptic potentials (IPSP), as well as an action potential, found in the experiments of neuro-electrophysiology. Recently, it has been proved that signal transmission and neuronal energetic demands are tightly coupled to information coding in the cerebral cortex in functional magnetic resonance imaging (fMRl) experiments. Therefore, the analytic results obtained in this paper show that the principle of energy coding is quite fundamental and is beneficial to the study of the important scientific problem as how the brain performs coding at the level of local neural networks. (C) 2009 Elsevier B.V. All rights reserved.