there are many areas in (macaque) cortex ...
there are even more connection (bundles) between the areas ...
area connections have detailed fine structure ...
here: V1 receiving projections from V5
there is different kind of processing in different directions
vertically connected areas
lower
higher
horizontally connected areas
areas are arranged hierarchically as well as horizontally...
cat visual hierarchy (van Essen)
(Young)
general generative model
general connectivity
bottom-up receiving areas,
arranged in parallel
hierarchicallyarranged areas
areas can be distinguished by activation function parameters
wake phase
learn generative weights
sleep phase
learn recognition weights
flat data
any line is generated
with equal probability
hierarchically generated data
„top“: decide on the lines‘ orientation
„bottom“: generate only such lines
flat data (here, 90º and 135º were
presented more often)
hierarchically generated data
no data