Research on brain white matter fibers connecting the inferior and superior frontal gyri.

采用纤维解剖和MRI技术对额下回和额上回的联合纤维进行分析。这些纤维在解剖学上被确认为连接Broca中心和额上回，主要存在于左侧大脑半球和男性。其解剖学特征与弓形束相似。这些发现表明，这一通路与语言组织密切相关，并可能解释了在术中语言映射过程中有时观察到的额上回外侧刺激引起的言语障碍。

The association fibers connecting the inferior and superior frontal gyri were analyzed using fiber dissection and MRI techniques. The fibers were anatomically identified to connect between the Broca center and the lateral superior frontal gyrus, and existed dominantly in left cerebral hemisphere and male population. The anatomical feature was common to that of the arcuate fascicle. These findings suggest a close relationship between this pathway and language organization, and may explain speech disturbances induced by lateral superior frontal gyrus stimulation that were sometimes observed during intraoperative language mapping.