کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
404417 677422 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fitting a stochastic spiking model to neuronal current injection data
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر هوش مصنوعی
پیش نمایش صفحه اول مقاله
Fitting a stochastic spiking model to neuronal current injection data
چکیده انگلیسی

Spiking neuron models have advanced to the stage of accurately predicting the spike times of individual biological neurons for given fluctuating current. Most of the successful models are based on deterministic mechanistic modeling. In order to describe the stochastic aspect of neuronal firing, I propose setting a deterministic model in a stochastic framework, namely, incorporating the multi-timescale adaptive threshold (MAT) model of neuronal spiking into the stochastic framework of the linear–nonlinear Poisson (LNP) model in the form of a generalized linear model (GLM). In this setting, the probability of spike occurrence is updated each time a spike is derived from the past probability. Accordingly, the model may account for nontrivial firing patterns of various neurons that cannot be realized with the inhomogeneous Poisson process. The stochastic MAT model is not only capable of characterizing firing mechanisms specific to individual neurons, but may render the statistical inference feasible for the underlying mechanisms from the data. I also examine here two plausible principles for adjusting the model parameters: maximizing the spike time coincidence between the model and data, and maximizing the likelihood. It is found that these principles bring about greatly different characteristics for an identical set of data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neural Networks - Volume 23, Issue 6, August 2010, Pages 764–769
نویسندگان
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