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首页> 外文期刊>Neuron >Category-specific organization in the human brain does not require visual experience.
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Category-specific organization in the human brain does not require visual experience.

机译:人脑中特定类别的组织不需要视觉体验。

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摘要

Distinct regions within the ventral visual pathway show neural specialization for nonliving and living stimuli (e.g., tools, houses versus animals, faces). The causes of these category preferences are widely debated. Using functional magnetic resonance imaging, we find that the same regions of the ventral stream that show category preferences for nonliving stimuli and animals in sighted adults show the same category preferences in adults who are blind since birth. Both blind and sighted participants had larger blood oxygen-level dependent (BOLD) responses in the medial fusiform gyrus for nonliving stimuli compared to animal stimuli and differential BOLD responses in lateral occipital cortex for animal stimuli compared to nonliving stimuli. These findings demonstrate that the medial-to-lateral bias by conceptual domain in the ventral visual pathway does not require visual experience in order to develop and suggest the operation of innately determined domain-specific constraints on the organization of object knowledge.
机译:腹侧视觉通路内的不同区域显示了针对非生命和生命刺激的神经专长(例如,工具,房屋与动物,面部)。这些类别偏好的原因已引起广泛争议。使用功能磁共振成像,我们发现腹侧流的相同区域显示无生命刺激的类别偏好,而有视力的成年人中的动物在出生后失明的成年人中也显示相同的类别偏好。与动物刺激相比,盲人和有眼盲的参与者在非梭形内回中梭状回的血氧水平依赖性(BOLD)反应都较大,而在动物外侧刺激时,在枕叶外侧回皮中的BOLD响应也较无生命时大。这些发现表明,腹侧视觉通路中概念域的内侧到外侧偏向不需要视觉经验来发展和建议先天确定的对领域知识组织的领域特定约束的操作。

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