颞平面不对称与语言优势。

Planum temporale asymmetry and language dominance.

作者信息

Foundas A L, Leonard C M, Gilmore R, Fennell E, Heilman K M

机构信息

Center for Neuropsychological Studies, University of Florida, College of Medicine, Gainesville.

出版信息

Neuropsychologia. 1994 Oct;32(10):1225-31. doi: 10.1016/0028-3932(94)90104-x.

DOI:10.1016/0028-3932(94)90104-x

PMID:7845562

Abstract

Language is lateralized to the left hemisphere in most individuals, and leftward asymmetry of the planum temporale has been reported in postmortem and imaging studies. In this study we measured the planum temporale on magnetic resonance imaging (MR) scans of patients (11 right-handers, 1 non-right-hander) who had selective hemispheric anesthesia or Wada testing performed for language lateralization. All subjects who had language lateralized to the left hemisphere (11 right-handers) had a leftward asymmetry of the planum temporale. One subject who had language lateralized to the right hemisphere (non-right-hander) had a strong rightward asymmetry of the planum temporale. These data suggest that planum temporale asymmetries determined by MR are associated with language dominance and may predict language laterality.

摘要

在大多数个体中，语言功能定位于左侧半球，并且在尸检和影像学研究中均报告了颞平面的左侧不对称性。在本研究中，我们对接受选择性半球麻醉或Wada测试以进行语言功能定侧的患者（11名右利手、1名非右利手）的磁共振成像（MR）扫描进行了颞平面测量。所有语言功能定位于左侧半球的受试者（11名右利手）均有颞平面的左侧不对称。一名语言功能定位于右侧半球的受试者（非右利手）有强烈的颞平面右侧不对称。这些数据表明，由MR确定的颞平面不对称与语言优势相关，并且可能预测语言功能定侧。