p145fig04.24 A brain's task in creating an end cut to replace an ambiguous end gap requires that it be sensitive to the pattern of signals across the network, not just the activities of individual neurons.<BR>||  Hierarchical resolution of uncertainty. End Cuts.  The boundary system must CREATE a line end at next processing stage: Every line end is illusory! input -> ambiguous -> end cut. vertical -> vertical, ambiguous -> horizontal.  A pattern-to-pattern map, not a pixel-to-pixel map.