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单词 Area 17 of Brodmann
释义

Area 17 of Brodmann

中文百科

视觉皮层 Visual cortex

(重定向自Area 17 of Brodmann)

视觉皮层(英文:Visual cortex)是指大脑皮层中主要负责处理视觉信息的部分,位于大脑后部的枕叶。人类的视觉皮层包括初级视皮层(V1,亦称纹状皮层(Striate cortex))以及纹外皮层(Extrastriate cortex,例如V2,V3,V4,V5等)。初级视皮层位于Brodmann17区。纹外皮层包括Brodmann18区和Brodmann19区。

大脑的两个半球各有一部分视觉皮层。左半球的视觉皮层从右视野接收信息,而右半球的视觉皮层从左视野接收信息。

英语百科

Visual cortex 视觉皮层

(重定向自Area 17 of Brodmann)
The dorsal stream (green) and ventral stream (purple) are shown.  They originate from primary visual cortex.

The dorsomedial area (DM) also known as V6, appears to respond to visual stimuli associated with self-motion and wide-field stimulation. V6, is a subdivision of the visual cortex of primates first described by John Allman and Jon Kaas in 1975. V6 is located in the dorsal part of the extrastriate cortex, near the deep groove through the centre of the brain (medial longitudinal fissure), and typically also includes portions of the medial cortex, such as the parieto-occipital sulcus. DM contains a topographically organized representation of the entire field of vision. Like the middle temporal area V5, DM receives direct connections from the primary visual cortex. Also similar to V5, DM is also characterized by high myelin content, a characteristic that is usually present in brain structures involved in fast transmission of information. For many years, it was considered that DM only existed in New World monkeys. However, more recent research has suggested that DM also exists in Old World monkeys and perhaps humans. V6 is also sometimes referred to as the parietooccipital area (PO), although the correspondence is not exact.

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更新时间:2025/6/21 18:38:36