Sex differences in associations between spatial ability and corpus callosum morphology.
Sex differences in associations between spatial ability and corpus callosum morphology.
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DOI：
10.1002/jnr.24260
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发表时间：
2018-08
影响因子：
4.2
通讯作者：
Luders E
中科院分区：
文献类型：
--
作者：
Kurth F;Spencer D;Hines M;Luders E
对物体的旋转心理表征伴随着广泛的双侧大脑激活。因此，在进行心理旋转任务时，大脑半球间的沟通渠道可能起到一定的作用。事实上，据报道，心理旋转与大脑的主要连合系统--胼胝体的大小之间存在联系。然而，现有的发现是稀少的，并且在不同的研究中不一致。在这里，我们开始进一步表征任何这样的联系的性质，包括他们的确切位置在胼胝体。为此，我们应用了一种先进的图像分析方法，评估了38名健康成年人(男性19名，女性19名)在100个等距点上的膝盖骨厚度，年龄在22岁到45岁之间。我们发现了一种性别互动，在女性中存在显著的结构-绩效关系，但在男性中没有。具体地说，较好的心理旋转表现与较厚的女性膝盖体、后中体和前三分之一区域有关。这些发现可能表明在解决问题的策略上存在性别差异，在这些策略中，女性比男性更强的大脑半球之间的连接--特别是枕顶、额叶和前额叶之间的连接--与任务表现的改善有关。我们评估了心理旋转表现和局部骨痂厚度之间是否存在显著的联系，以及这种联系是否受性别的影响。在女性大脑中，较好的心理旋转表现与较厚的胼胝体有关，而在男性大脑中则不是。
Rotating mental representations of objects is accompanied by widespread bilateral brain activations. Thus, interhemispheric communication channels may play a relevant part when engaging in mental rotation tasks. Indeed, links between mental rotation and dimensions of the corpus callosum – the brain’s main commissure system – have been reported. However, existing findings are sparse and inconsistent across studies. Here we set out to further characterize the nature of any such links, including their exact location across the corpus callosum. For this purpose, we applied an advanced image analysis approach assessing callosal thickness at 100 equidistant points in a sample of 38 healthy adults (19 men, 19 women), aged between 22 and 45 years. We detected a sex interaction, with significant structure-performance relationships in women, but not in men. Specifically, better mental rotation performance was linked to a thicker female corpus callosum within regions of the callosal splenium, posterior midbody, and anterior third. These findings may suggest sex differences in problem solving strategies where in women, more than in men, stronger interhemispheric connectivity – especially between occipito-parietal, frontal, and prefrontal regions – is associated with improved task performance. We assessed whether there is a significant link between mental rotation performance and local callosal thickness, and whether this link is modulated by sex. Better mental rotation performance was associated with a thicker corpus callosum in female but not in male brains.
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影响因子：
2.3
作者：
Luders, Eileen;Kurth, Florian;Cherbuin, Nicolas
通讯作者：
Cherbuin, Nicolas
影响因子：
3.3
作者：
Casey, Beth M.;Andrews, Nicole;Copley, Juanita
通讯作者：
Copley, Juanita
影响因子：
1.9
作者：
HINES, M;MCADAMS, LA;LIPCAMON, J
通讯作者：
LIPCAMON, J
影响因子：
4
作者：
Levine, SC;Huttenlocher, J;Langrock, A
通讯作者：
Langrock, A
影响因子：
4.6
作者：
LINN, MC;PETERSEN, AC
通讯作者：
PETERSEN, AC