Paper available: "RFs and Maps in the Visual Cortex"

[Ken Miller]

FTP-host: archive.cis.ohio-state.edu
FTP-filename: /pub/neuroprose/miller.rfs_and_maps.ps.Z

The file miller.rfs_and_maps.ps.Z is now available for copying from
the Neuroprose repository.  This is a review paper:

Receptive Fields and Maps in the Visual Cortex: Models of Ocular
Dominance and Orientation Columns (26 pages)
	Kenneth D. Miller
	Dept. of Physiology
	University of California, San Francisco

To appear in: Models of Neural Networks III, E. Domany, J.L. van
Hemmen, and K. Schulten, Eds. (Springer-Verlag, NY), 1995.

ABSTRACT:
The formation of ocular dominance and orientation columns in the
mammalian visual cortex is briefly reviewed.  Correlation-based models
for their development are then discussed, beginning with the models of
Von der Malsburg.  For the case of semi-linear models, model behavior
is well understood: correlations determine receptive field structure,
intracortical interactions determine projective field structure, and
the ``knitting together'' of the two determines the cortical map.
This provides a basis for simple but powerful models of ocular
dominance and orientation column formation: ocular dominance columns
form through a correlation-based competition between left-eye and
right-eye inputs, while orientation columns can form through a
competition between ON-center and OFF-center inputs.  These models
account well for receptive field structure, but are not completely
adequate to account for the details of cortical map structure.
Alternative approaches to map structure, including the self-organizing
feature map of Kohonen, are discussed.  Finally, theories of the
computational function of correlation-based and self-organizing rules
are discussed.

Sorry, hard copies are NOT available.

Ken

Kenneth D. Miller               
Dept. of Physiology		
UCSF                            
513 Parnassus		
San Francisco, CA 94143-0444    
internet: ken at phy.ucsf.edu