Connection Lengths averaged across cultures harvested from the same tissue batch when using a 150 ms time window. A) shows results derived from 6 dense culture batches. B) Results derived from 2 sparse density batches and C) displays results for 2 small density batches. Each panel shows results with respect to a different batch. The black solid line represents the average connection length within batches, while red vertical lines are the corresponding standard errors. Blue dotted lines represent missing experimental data points. n represents the population size for each batch.