A Large-Scale Investigation of Lateralization in Cortical Anatomy and Word Reading: Are There Sex Differences?
A Large-Scale Investigation of Lateralization in Cortical Anatomy and Word Reading: Are There Sex Differences?
复制标题
DOI：
10.1037/a0014265
复制
发表时间：
2009-03-01
期刊：
影响因子：
2.4
通讯作者：
Leonard, Christiana M.
中科院分区：
文献类型：
--
作者：
Chiarello, Christine;Welcome, Suzanne E.;Leonard, Christiana M.
作者报告了一个大规模的，多任务调查的性别差异的结构不对称和偏侧化的单词阅读。200名参与者被测试在八个划分的视野词汇任务，每个人都接受了结构磁共振成像扫描。作者检查了是否有证据表明，在神经解剖学和行为偏侧化的总体测量中，在特定的语言任务和大脑区域中，以及在任务和大脑区域内部和之间的不对称性变化中存在性别差异。几乎没有证据表明在任何行为测量上存在性别差异。在本报告中的性别差异的少数迹象占2%或更少的不对称的个体变异，不能在独立的子样本中复制。在Broca和Wernicke区域的结构不对称性方面没有观察到性别差异，如Pars triangularis，Pars opercularis，Temporum planum，planum parietale，或Heschl's gyrus。在大脑区域内或之间的神经解剖学不对称性的变异性方面也没有性别差异。然而，颞平面和行为不对称之间的显着关系仅限于男性。
The authors report findings of a large-scale, multitask investigation of sex differences in both structural asymmetries and lateralization of word reading. Two hundred participants were tested in eight divided visual field lexical tasks, and each received a structural magnetic resonance imaging scan. The authors examined whether there was evidence for sex differences in overall measures of neuroanatomical and behavioral lateralization, in specific language tasks and brain regions, and in variation in asymmetry within and across tasks and brain regions. There was very little evidence for sex differences on any behavioral measure. The few indications of sex differences in the current report accounted for 2% or less of the individual variation in asymmetry and could not be replicated in independent subsamples. No sex differences were observed in the asymmetry of structures in Broca's and Wernicke's areas such as pars triangularis, pars opercularis, the planum temporale, planum parietale, or Heschl's gyrus. There were also no sex differences in the variability of neuroanatomical asymmetries within or between brain regions. However, a significant relationship between planum temporale and behavioral asymmetry was restricted to men.