Multivariate Autoregressive Modeling and Granger Causality Analysis of Multiple Spike Trains
Figure 3
Granger causality analysis in a 2D case. (a) Schematic of the original model and its observed correlation structure. (b) Granger causality analysis of the spike trains revealed a significant causal connection from cell 1 to cell 2. The numbers represent the pairwise linear Granger causality coefficients for each connection and their -values (in parenthesis). (c) Correlation structure of the model used as a “null” for the statistical test, with no connection between cell 1 and cell 2.