دانلود مقاله ISI انگلیسی شماره 151852
کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
151852 2018 11 صفحه PDF سفارش دهید 8097 کلمه
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عنوان انگلیسی
Objective analysis of the topological organization of the human cortical visual connectome suggests three visual pathways
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Cortex, Volume 98, January 2018, Pages 73-83

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چکیده انگلیسی

The cortical visual system is composed of many areas serving various visual functions. In non-human primates, these are broadly organised into two distinct processing pathways: a ventral pathway for object recognition, and a dorsal pathway for action. In humans, recent theoretical proposals suggest the possible existence of additional pathways, but direct empirical evidence has yet to be presented. Here, we estimated the connectivity patterns between 22 human visual areas using resting-state functional MRI data of 470 individuals, leveraging the unprecedented data quantity and quality of the Human Connectome Project and a novel probabilistic atlas. An objective, data-driven analysis into the topological organisation of connectivity and subsequent quantitative confirmation revealed a highly significant triple dissociation between the retinotopic areas on the dorsal, ventral and lateral surfaces of the human occipital lobe. This suggests that the functional organisation of the human visual system involves not two but three cortical pathways.

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