Model | A_{2}^{+} | A_{3}^{+} | A_{2}^{−} | A_{3}^{−} | τ_{x} (ms) | τ_{y} (ms) | E | |
---|---|---|---|---|---|---|---|---|
All-to-All | Full | 6.1 × 10^{−3} | 6.7 × 10^{−3} | 1.6 × 10^{−3} | 1.4 × 10^{−3} | 946 | 27 | 2.9 |
Min. | 5.3 × 10^{−3} | 8 × 10^{−3} | 3.5 × 10^{−3} | 0 | 40 | 3.4 | ||
Nearest-Spike | Full | 4.6 × 10^{−3} | 9.1 × 10^{−3} | 3 × 10^{−3} | 7.5 × 10^{−9} | (575) | 47 | 2.9 |
Min. | 4.6 × 10^{−3} | 9.1 × 10^{−3} | 3 × 10^{−3} | 0 | 48 | 2.9 |
List of parameters used to model the hippocampal culture data set. In this table, the terms “full” and “min.” represent full triplet model and minimal triplet model, respectively. The additional parameters τ_{+} = 16.8 ms and τ_{−} = 33.7 ms are taken from Bi and Poo (2001) and kept fixed for all models and data sets. In some cases, parentheses are added in the τ_{x} column to indicate that the error function is insensitive to the exact value of τ_{x} in those cases. The last column corresponds to the fitting error given by Equation 5 and plotted in Figure 6.