A few more figures for you: The smallest unit of neural organization
seems to be
the "minicolumn", such as the orientation-specific columns in V1. These
about 30 um in size, contain only about a hundred neurons. These columns
be due to vertical bundles of apical dendrites (Journal of Comparative
306:1-23 1991). About 300 minicolumns make up a macrocolumn, which is
.4 - .7 mm wide.
Computer simulation, eh? Sounds interesting. Are you hoping to get it to
accomplish some particular sort of processing?
Hope this is helpful,
MRFerrier at aol.com