Using functional magnetic resonance imaging (fMRI), the researchers were also able to measure the surface area of the primary visual cortex in each volunteer.

研究人可通过功能磁共振成像（FMRI）来测量每个志愿者脑部的初级视觉表皮层大小。

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For instance, it is universally agreed that the striate area of the occipital pole is the area of primary visual projection.

例如，一般都同意枕叶的条纹区域掌管主要的视觉投射。

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Feature space imitates the model of biological complex neurons in primary visual cortex, and it is constructed through orientation histogram in feature's local area.

特征空间则模仿了灵长类动物的视觉神经元模型，以区域图像梯度直方图的方式建立。

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