MRI asymmetries of Broca's area: The pars triangularis and pars opercularis
MRI asymmetries of Broca's area: The pars triangularis and pars opercularis
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DOI：
10.1006/brln.1998.1974
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发表时间：
1998-10-01
影响因子：
2.5
通讯作者：
Weinberger, DR
中科院分区：
文献类型：
--
作者：
Foundas, AL;Eure, KF;Weinberger, DR
布罗卡区。包括三角部（PTR）和盖部（POP），是言语产生的重要神经解剖区域。以前的数据表明，PTR不对称性与选择性半球麻醉或Wada测试确定的语言优势高度相关，这表明PTR的不对称性可能部分预测语言优势。尚未测量体积磁共振成像（MRI），因此，目前还不清楚是否存在形态不对称的POP，以及这些不对称性是否不同的右，左撇子。本研究的目的是确定是否存在可测量的不对称性的POP的MRI，以及是否不同的方向的不对称性的右，左撇子。PTR和POP测量体积MRI扫描的16名右利手和16名左撇子匹配的年龄和性别。右利手和左利手的PTR存在显著的不对称性，尽管左利手的不对称性降低。与此相反，右利手者的POP呈现一种不对称性，而左利手者的POP呈现一种不对称性。利手，来自利手清单，与POP不对称呈正相关。(C)北京：科学出版社.
Broca's area. which includes the pars triangularis (PTR) and pars opercularis (POP), is a neuroanatomic region important in speech-language production. Previous data demonstrated that PTR asymmetries are highly correlated with language dominance determined by selective hemispheric anesthesia or Wada testing, suggesting that asymmetries of the PTR may, in part, predict language dominance, The POP, however. has not been measured on volumetric magnetic resonance imaging (MRI), and therefore, it is unclear whether morphological asymmetries of the POP exist, and whether these asymmetries differ in right- and left-handers. The purpose of this study was to determine if measurable asymmetries of the POP exist on MRI, and whether the direction of the asymmetries differ in right- and left-handers. The PTR and POP were measured on volumetric MRI scans of 16 right-handers and 16 left-handers matched for age and gender. There was a significant leftward asymmetry of the PTR in right- and left-handers, although the asymmetry was reduced in the left-handers. In contrast, there was a leftward asymmetry of the POP in right-handers, and a rightward asymmetry in the left-handers. Handedness, derived from a handedness inventory, was positively correlated with POP asymmetry. (C) 1998 Academic Press.