Figure 6.

Estimated interaction function for case B. This figure is similar to Figure 5, except that it describes the results from case B instead of case A. (A) The estimated interaction functions of a connected neuron pair for various cycle numbers of data (blue lines). The light blue zone represents the 95% confidence interval. $\widehat{\Gamma }(\Delta \varphi )$ derived from the detailed model is also shown for comparison (dashed lines). The L²-distances were 0.1235, 0.0044, 0.0016, and 0.0002, for 100, 500, 1,000, and 5,000 cycles, respectively. (B) The estimated interaction functions of an unconnected neuron pair. The L²-distances were 0.1261, 0.0062, 0.0015, and 0.0003, for 100, 500, 1,000, and 5,000 cycles, respectively. (C) Comparison of the odd part of $\widehat{\Gamma }(\Delta \varphi )$ between the estimated and theoretically obtained functions. As in Figure 5C, the filled circles indicate stable phase differences while the open circles show unstable phase differences. (D,E) Dependence of L²-distances on the standard deviation of applied currents and of noise. σ_N was set to 0.4 for (D), while σ_I was set to 0.1 for (E).