Anatomy of the visual word form area: adjacent cortical circuits and long-range white matter connections.

Anatomy of the visual word form area: adjacent cortical circuits and long-range white matter connections.
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DOI:
10.1016/j.bandl.2012.04.010
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发表时间:
2013-05
期刊:
影响因子:
2.5
通讯作者:
Wandell, Brian A.
Wandell, Brian A.
中科院分区:
心理学3区
文献类型:
--
作者:
Yeatman, Jason D.;Rauschecker, Andreas M.;Wandell, Brian A.

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腹侧枕颞叶皮层的回路对看到单词至关重要。我们分析了一个特定的腹枕区,视觉词形区(VWFA)内的电路。VWFA紧邻视网膜定位组织的VO-1和VO-2视野图,位于运动选择性人类皮层内视野图的内侧和下方。三个不同的白色物质束在VWFA附近通过:(1)下纵束,(2)下额枕束和(3)垂直枕束。垂直枕束终止于或邻近于每个个体中功能定义的VWFA体素。垂直枕束向背侧投射到语言和阅读相关皮层。皮层的功能反应和白色物质的解剖测量相结合,提供了一个概述,如何编码和沟通的书面文字沿着腹侧枕颞电路看到的话。
Circuitry in ventral occipital-temporal cortex is essential for seeing words. We analyze the circuitry within a specific ventral-occipital region, the visual word form area (VWFA). The VWFA is immediately adjacent to the retinotopically organized VO-1 and VO-2 visual field maps and lies medial and inferior to visual field maps within motion selective human cortex. Three distinct white matter fascicles pass within close proximity to the VWFA: (1) the inferior longitudinal fasciculus, (2) the inferior frontal occipital fasciculus and (3) the vertical occipital fasciculus. The vertical occipital fasciculus terminates in or adjacent to the functionally defined VWFA voxels in every individual. The vertical occipital fasciculus projects dorsally to language and reading related cortex. The combination of functional responses from cortex and anatomical measures in the white matter provides an overview of how the written word is encoded and communicated along the ventral occipital-temporal circuitry for seeing words.
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