Fig. 6.

Scatter plots showing the A-ISI-distance between all pairs of spike trains vs. the original ISI-distance (A) and the A-SPIKE-distance vs. the SPIKE-distance (B). The diagonal line marks where the measures would show equal distance. The pairs were sorted according to rising order of the original distances. Thus, if the order changed for adaptive extension, there is a negative slope in a line connecting all the pairs. For each line with a negative slope we calculated its length using the Euclidean distance. The five largest absolute changes are indicated in magenta, the five largest relative changes in cyan. In addition, a magenta (cyan) arrow points to the very largest absolute (relative) change. Overall, while the changes are seemingly small on an absolute scale, the relative changes can be very significant.