M. Sultan M. Siddiqui

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Decades of experimental studies are available on disparity selective cells in visual cortex of macaque and cat. Recently, local disparity map for iso-orientation sites for near-vertical edge preference is reported in area 18 of cat visual cortex. No experiment is yet reported on complete disparity map in V1. Disparity map for layer IV in V1 can provide(More)
In this paper we present reaction-diffusion based two eye model to develop disparity selective binocular simple cell receptive fields (RFs) in layer IV of cat visual cortex (V1). Pre-eye opening environment is used for development of binocular simple cell RFs. Our model also supports post-eye opening period development of binocular simple cell RFs.(More)
Inter-ocular differences in spatial frequency occur during binocular viewing of a surface slanted in depth. Cortical cells with inter-ocular differences in preferred spatial frequency (dif-frequency cells) are expected to detect surfaces slanted in depth or vertical surface slant. Using our reaction-diffusion model, we obtain receptive fields and responses(More)
Visual cortex possesses features such as binocular disparity (DP), ocular dominance (OD), orientation preference (OR), direction preference (DS), and spatial frequency. Neurophysiological studies have explored the existence of orthogonal relationship between local maps of DP and OD at visual cortex sites having vertical/near vertical OR [1]. No experimental(More)
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