Three-dimensional shape representation in monkey cortex.

Margaret E Sereno; Torsten Trinath; Mark Augath; Nikos K Logothetis

doi:10.1016/s0896-6273(02)00598-6

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Three-dimensional shape representation in monkey cortex.

Margaret E Sereno·Torsten Trinath·Mark Augath·Nikos K Logothetis

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Abstract

Using fMRI in anesthetized monkeys, this study investigates how the primate visual system constructs representations of three-dimensional (3D) shape from a variety of cues. Computer-generated 3D objects defined by shading, random dots, texture elements, or silhouettes were presented either statically or dynamically (rotating). Results suggest that 3D shape representations are highly localized, although widely distributed, in occipital, temporal, parietal, and frontal cortices and may involve common brain regions regardless of shape cue. This distributed network of areas cuts across both "what" and "where" processing streams, reflecting multiple uses for 3D shape representation in perception, recognition, and action.

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Animals Brain Mapping Cerebral Cortex Image Processing, Computer-Assisted Macaca mulatta Magnetic Resonance Imaging Motion Perception Nerve Net Pattern Recognition, Visual Photic Stimulation Space Perception Visual Cortex Journal Article Research Support, Non-U.S. Gov't

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Margaret E Sereno, Torsten Trinath, Mark Augath, Nikos K Logothetis. 2002-02-14. Three-dimensional shape representation in monkey cortex.. https://doi.org/10.1016/s0896-6273(02)00598-6

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