... 2 63 visual (striate), 37 3layer IV, 37 5layer III, 37 5layer II, 37 5cost function, 148Cottrell, G. W., 124Counterpropagation network (CPN), 2 13- 262,264, 265, 2 73, 286, 294, 33 1, 34 3, 37 0architecture ... 182, 184Grajski, Kamil, 37 1grandmother cell, 37 5Grossberg, Stephen, 228, 230 , 232 , 248, 262,292, 2 93, 297, 299, 31 6, 33 7, 34 2Hammingdistance, 128, 129, 133 hypercube, 128, 129, 148, ... this promisingarchitecture. 39 8Indexdifferential, 35 9, 36 1learning, 8, 15, 220, 232 , 38 7Hecht-Nielsen, Robert, 41, 124, 2 13, 262, 37 1Heinemann, Karl G., 38 9, 39 3hidden units, 5hill climbing,...