12/1/03
10
Complementary Interactions
¥Positive feedback / negative feedback
¥Amplification / stabilization
¥Activation / inhibition
¥Cooperation / competition
¥Positive / negative correlation
positive feedback / negative feedback
   amplification / balance (stabilization)
     ¥adaptability / stability
   ¥growth / limit
   ¥creates / shapes
   ¥negative feedback for free: depletion, saturation
¥cooperation / competition
activation / inhibition
   ¥short-range activation => local uniformity
   ¥long-range inhibition => separation
positive / negative correlation
   ¥Hebb's rule