Sharpening of orientation selective receptive fields in the mammalian visual cortex by long-range interactions
- Creators
- Niebur, Ernst
- Wörgötter, Florentin
- Other:
- Marburger, Heinz
Abstract
Lateral intracortical interactions are believed to be responsible for the sharpening of the receptive field profiles of visual cortical cells. This study demonstrates a structurally imposed limitation of long range interactions on the frequently invoked cross orientation inhibition scheme: it leads to inhomogeneous input for different cell populations which is experimentally not observed. We propose a novel connection scheme called "circular inhibition" which circumvents this problem. The scheme is analyzed by computer simulation of the early visual system of the cat, and by studying a simple analytically solvable model. Our model yields results consistent with the experimentally determined structure of the orientational hypercolumns in area 18 of the cat.
Additional Information
© 1990 Springer-Verlag Berlin Heidelberg.Additional details
- Eprint ID
- 103539
- Resolver ID
- CaltechAUTHORS:20200529-080452695
- Created
-
2020-05-29Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
- Series Name
- Informatik-Fachberichte
- Series Volume or Issue Number
- 251