The sensory cortical representation of the human penis:: Revisiting somatotopy in the male homunculus
The sensory cortical representation of the human penis:: Revisiting somatotopy in the male homunculus
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DOI：
10.1523/jneurosci.0712-05.2005
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发表时间：
2005-06-22
影响因子：
5.3
通讯作者：
Laufs, H
中科院分区：
文献类型：
--
作者：
Kell, CA;von Kriegstein, K;Laufs, H
对人类皮层的开创性测绘研究已经确立了感觉表征中的躯体解剖概念，这一概念后来发展成为彭菲尔德和拉斯穆森著名的感觉侏儒图。然而，关于生殖器的主要皮层表征，古典和现代的研究结果似乎与躯体解剖的原则不一致，通常将其分配给内侧壁的皮层。利用功能性神经影像学，我们在初级感觉皮层的对侧中央后回建立了体感足、阴茎和下腹壁的中外侧序列，并在顶盖层建立了双侧次级体感表征。
Pioneering mapping studies of the human cortex have established the notion of somatotopy in sensory representation, which transpired into Penfield and Rasmussen's famous sensory homunculus diagram. However, regarding the primary cortical representation of the genitals, classical and modern findings appear to be at odds with the principle of somatotopy, often assigning it to the cortex on the mesial wall. Using functional neuroimaging, we established a mediolateral sequence of somatosensory foot, penis, and lower abdominal wall representation on the contralateral postcentral gyrus in primary sensory cortex and a bilateral secondary somatosensory representation in the parietal operculum.