A model for development of Gabor-receptive fields in simple cortical cells.
A model is proposed for the development of Gabor-like receptive fields of simple cells in the visual cortex. We assume that several cortical cells are arranged in a ring, with mutual excitatory or inhibitory connections of fixed weight. The cells also receive excitatory synapses from LGN; the synaptic weights are initially set random and then modified based on correlated dark activity in LGN. Each cell finally acquires a simple receptive field best described by a Gabor function. Spatial phase in the function varies regularly from 0 to 2 pi with rotation along the ring.
Hamada
T
T
Electrotechnical Laboratory LERC, Amagasaki, Japan.
Kato
K
K
Okada
K
K
D005829:Geniculate Bodies / Q000166:cytology / Q000502:physiology*; D008959:Models, Neurological; D009474:Neurons / Q000502:physiology*; D009949:Orientation / Q000502:physiology; D010775:Photic Stimulation; D013569:Synapses / Q000502:physiology; D014793:Visual Cortex / Q000166:cytology / Q000254:growth & development / Q000502:physiology*; D014794:Visual Fields / Q000502:physiology*