...Hemmen

e-mail: Leo.van.Hemmen@Physik.TU-Muenchen.de

...hat''

Interestingly, Hebbian learning of random contours gives rise to the very same form. It is plain that Dale's law is inconsistent with a Mexican hat but this form has been very popular. It is a simple matter, though, to redefine the sign of the bonds and at the same time shift the threshold .

Raphael Ritz
Fri Sep 22 16:19:19 PDT 1995