Figure 10.

The probability of finding a connected pair of neurons in our sample does not depend on the Euclidean distances measured from the plots shown in Figure 9. A, Examples of firing pattern sweeps (80 pA above threshold level current pulse) from pairs of neurons with different Euclidean distances. Notice the increasing diversity with the larger Euclidean distance. B, Top, Histogram distribution of the number of overall pairs of neurons tested for electrical coupling. Bottom, Lack of correlation between Euclidean distance of the tested pair and probability of finding electrical coupling. The probability of finding a connection was calculated for every bin and plotted against the Euclidean distance in the center of the bin. Linear regression (dotted line) was weighted according to the number of pairs tested for every bin.