Localization of hand sensory function to the pli de passage moyen of Broca

被引:10
作者
Boling, WW
Olivier, A
机构
[1] W Virginia Univ, Hlth Sci Ctr, Dept Neurosurg, Morgantown, WV 26506 USA
[2] Montreal Neurol Inst, Montreal, PQ, Canada
[3] McConnell Brain Imaging Ctr, Montreal, PQ, Canada
关键词
hand sensory function; positron emission tomography; central area; functional magnetic resonance imaging;
D O I
10.3171/jns.2004.101.2.0278
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Object. The goal of this study was to identify a reliable landmark for hand sensory function in the central area. Methods. Hand sensory activation on positron emission tomography (PET) scans was analyzed in 27 patients. Each PET study was coregistered with the patient's magnetic resonance image and analyzed in two-dimensional and three-dimensional cortical surface reconstructions to define anatomicofunctional relationships. Conclusions. The substratum of hand sensory function is a prominent fold of cortex elevating the floor of the central sulcus and connecting the pre- and postcentral gyri. Broca named this cortical fold the pli de passage moyen, and hand motor function has been localized to the precentral component of this structure. In this study the authors demonstrate that hand sensory function is highly correlated with the postcentral component of the pli de passage moyen, and that this structure is a reliable cortical landmark for identifying the aforementioned function.
引用
收藏
页码:278 / 283
页数:6
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