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首页> 外文期刊>Neuron >Three-dimensional shape representation in monkey cortex.
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Three-dimensional shape representation in monkey cortex.

机译:猴子皮质中的三维形状表示。

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摘要

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.
机译:使用功能磁共振成像在麻醉的猴子中,这项研究调查了灵长类动物视觉系统如何从各种线索构建三维(3D)形状的表示。由阴影,随机点,纹理元素或轮廓定义的计算机生成的3D对象可以静态或动态(旋转)呈现。结果表明,尽管3D形状表示分布广泛,但在枕叶,颞叶,顶叶和额叶皮层中高度局限,尽管形状提示也可能涉及共同的大脑区域。这种区域分布网络跨越“什么”和“哪里”处理流,反映了3D形状表示在感知,识别和动作中的多种用途。

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