Hopfield and Brody's "silicon mouse" pair of papers. The first presents the observed non trivial abilities and "electrophysiology" of their computational model, and the second presents the solution. Try and figure out the solution before looking at the 2nd paper (even the title of the 2nd paper gives it away!):
2000_Hopfield_Brody_-_What_is_a_moment.pdf
2001_Hopfield_Brody_-_What_is_a_moment.pdf
Review of visual system development: