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Table 3:
Statistics of Quadratic Fit to Correlation as a Function of Stimulus Filter (k) and Postspike Filter (h) Heterogeneity.
HeterogeneityNetwork Size234567
k R2 0.0018 0.0123 0.0076 0.0149 0.0212 0.0357 
 p-value for F-statistic versus Constant 0.003 6.0×10-18 2.2×10-11 1.4×10-21 1.6×10-30 2.9×10-51 
h R2 0.0199 0.0159 0.0166 0.0156 0.0232 0.0356 
 p-value for F-statistic versus Constant 1.1×10-28 4.6×10-23 5.3×10-24 1.4×10-22 2.4×10-33 4.4×10-51 
HeterogeneityNetwork Size234567
k R2 0.0018 0.0123 0.0076 0.0149 0.0212 0.0357 
 p-value for F-statistic versus Constant 0.003 6.0×10-18 2.2×10-11 1.4×10-21 1.6×10-30 2.9×10-51 
h R2 0.0199 0.0159 0.0166 0.0156 0.0232 0.0356 
 p-value for F-statistic versus Constant 1.1×10-28 4.6×10-23 5.3×10-24 1.4×10-22 2.4×10-33 4.4×10-51 

Notes: Correlations were prewhitened for the two time series to ensure unbiased estimates. Bold text corresponds to quadratic fits where the optimal level of heterogeneity is not in the interior.

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