p117fig03.41 End gaps, or small breaks or weakenings of boundaries, can form where a stronger boundary abuts a weaker, like-oriented, boundary, as occurs where black boundaries touch red boundaries in the neon color spreading image of <A HREF="images- Grossberg 2021/p096fig03.11 Another example of neon color spreading.png">Figure 3.11</a>.<BR>|| Boundary contours - lower contrast boundary signals are weakened.  feature contours- no inhibition, feature signals survive and spread. MP -> [BCS, FCS]. BCS -> FCS.