Multivariate Autoregressive Modeling and Granger Causality Analysis of Multiple Spike Trains

Figure 2

Fitting multiple spike trains with an MVAR-Nonlinear-Poisson model. (a) Schematic representation of the model. (b) Rate processes 𝜆(𝑡) and corresponding Poisson spike trains. (c) Correlation structures of the original spike trains and the estimated model.

(a)

(b)

(c)