Cortical Interactions Of Parallel Afferent Channels Underlying Visual Perception, Attention And Memory

Abstract

The visual pathways from the eyes to the brain consist of distinct groups of cells which are specialised to signal different aspects of the visual scene such as colour, contrast and movement. As the information they carry is relayed through and processed in many different regions of the brain these parallel information channels were, until recently, believed to remain completely separate from each other. Furthermore, it had been proposed that as the information reaches the visual neocortex the information is channeled through two main largely parallel information processing streams, a dorsal stream to the parietal cortex (a where system) and a ventral stream to the temporal cortex (a what sy..

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