TY  - GEN
ID  - cogprints525
UR  - http://cogprints.org/525/
A1  - Miikkulainen, Risto
A1  - Bednar, James A.
A1  - Choe, Yoonsuck
A1  - Sirosh, Joseph
Y1  - 1997///
N2  - Based on a Hebbian adaptation process, the afferent and lateral connections in the RF-LISSOM model organize simultaneously and cooperatively, and form structures such as those observed in the primary visual cortex. The neurons in the model develop local receptive fields that are organized into orientation, ocular dominance, and size selectivity columns. At the same time, patterned lateral connections form between neurons that follow the receptive field organization. This structure is in a continuously-adapting dynamic equilibrium with the external and intrinsic input, and can account for reorganization of the adult cortex following retinal and cortical lesions. The same learning processes may be responsible for a number of low-level functional phenomena such as tilt aftereffects, and combined with the leaky integrator model of the spiking neuron, for segmentation and binding. The model can also be used to verify quantitatively the hypothesis that the visual cortex forms a sparse, redundancy-reduced encoding of the input, which allows it to process massive amounts of visual information efficiently.
PB  - Academic Press, San Diego CA
KW  - visual cortex
KW  -  self-organization
KW  -  development
KW  -  visual aftereffects
KW  -  segmentation
KW  -  binding
KW  -  ocular dominance
KW  -  orientation columns
KW  -  retinotopy
KW  -  plasticity
KW  -  sparse coding
KW  -  redundancy reductionself-organizing maps
KW  -  Hebbian learning
TI  - Self-Organization, Plasticity, and Low-level Visual Phenomena in a Laterally Connected Map Model of the Primary Visual Cortex
SP  - 257
AV  - public
EP  - 308
ER  -

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