文献类型：期刊文献

英文题名：Pattern discrimination and firing behavior of cold receptor model aided with noise

作者：Du, Y.[1]; Wang, R.B.[1]; Lu, Q.S.[2]; Qu, J.Y.[1]

机构：[1] Institute for Cognitive Neurodynamics, School of Science, East China University of Science and Technology, 200237 Shanghai, China; [2] Department of Dynamics and Control, Beihang University, Beijing 100191, China

年份：2012

卷号：47

期号：10

起止页码：1088

外文期刊名：International Journal of Non-Linear Mechanics

收录：EI(收录号：20123715416949)

语种：英文

摘要：A method for characterizing and identifying firing patterns of neural spike trains is presented. Three characteristic variables defined at sequential moments, including two formal derivatives and the integration of the counting process, are introduced to reflect the temporal patterns of a spike train. This paper also examines how noise interacts with encoding mechanisms of neuronal stimulus in a cold receptor. From ISI series and bifurcation diagrams it is shown that there are considerable differences in interval distributions and impulse patterns caused by purely deterministic simulations and noisy simulations. The ISI-distance can be used as an effective and powerful way to measure the noise effects on spike trains quantitatively. It is found that spike trains observed in cold receptors can be more strongly affected by noise for low temperatures than for high temperatures in some aspects; meanwhile, spike train has greater variability with the noise intensity increasing. ? 2011 Elsevier Ltd. All rights reserved.