p080fig02.34 How to achieve informational noise suppression in a network with multiple parallel processing channels.<BR>||  Symmetry-breaking: dynamics and anatomy.<BR>Dynamics: <UL><LI>excitatory range is amplified<LI>inhibitory range is compressed</ul>Anatomy: <UL><LI>narrow on-center<LI>broad off-surround</ul>Noise suppression: attenuates uniform patterns<BR>Contour direction: enhances pattern gradients