A hierarchical, retinotopic proto-organization of the primate visual system at birth
A hierarchical, retinotopic proto-organization of the primate visual system at birth
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DOI：
10.7554/elife.26196
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发表时间：
2017-07-03
期刊：
影响因子：
7.7
通讯作者：
Livingstone, Margaret S.
中科院分区：
文献类型：
--
作者：
Arcaro, Michael J.;Livingstone, Margaret S.
成年灵长类动物的视觉系统包括一系列按等级组织的区域。每个皮层区域都包含视觉空间的地形图，不同的区域从视网膜输入中提取不同类型的信息。在这里，我们问新生儿的视觉系统在多大程度上类似于成人的组织。我们发现，层次，地形组织是目前在出生时，因此构成了一个原始组织的整个灵长类动物的视觉系统。即使在下颞叶皮层中，在类别选择性出现之前，这种原始组织已经存在（例如，面孔或场景）。我们认为，这种地形组织提供了支架，为随后的发展，视觉皮层开始在发病的视觉经验
The adult primate visual system comprises a series of hierarchically organized areas. Each cortical area contains a topographic map of visual space, with different areas extracting different kinds of information from the retinal input. Here we asked to what extent the newborn visual system resembles the adult organization. We find that hierarchical, topographic organization is present at birth and therefore constitutes a proto-organization for the entire primate visual system. Even within inferior temporal cortex, this proto-organization was already present, prior to the emergence of category selectivity (e.g., faces or scenes). We propose that this topographic organization provides the scaffolding for the subsequent development of visual cortex that commences at the onset of visual experience