!Converted with LaTeX2HTML 95.1 (Fri Jan 20 1995) by Nikos Drakos (firstname.lastname@example.org), CBLU, University of Leeds >
The study described above had been mainly conducted before 1993. Much progress has been made since then, particularly on the theoretical front. In this postscript, we summarize these recent advances, and further discuss biological plausibility of the model. We also give an updated discussion on the origin of synchronous oscillations in the visual cortex.