Denenberg V H, Kertesz A, Cowell P E
Biobehavioral Sciences Graduate Degree Program, University of Connecticut, Storrs 06269-4154.
Brain Res. 1991 May 10;548(1-2):126-32. doi: 10.1016/0006-8993(91)91113-f.
We have recently developed a computer program for measuring midsagittal sections of the human corpus callosum, similar to one used for the rat. Callosal area, perimeter, axis length, and 99 widths for 104 subjects were entered into a factor analysis in order to define regional clusters. Seven width factors were obtained. Regional widths were found to be sensitive to Sex X Handedness interactions in the anterior body, with right-handed females and left-handed males being larger. In the posterior body males had wider callosa than females. A further analysis within the 'isthmus' region compared consistent and non-consistent right-handed males and females. Consistent right-handed males and both female groups had smaller callosa than non-consistent right-handed males. These findings confirmed the use of consistency of handedness as an important independent variable with respect to human callosal morphology.
我们最近开发了一种用于测量人类胼胝体矢状中截面的计算机程序，类似于用于大鼠的程序。将104名受试者的胼胝体面积、周长、轴长和99个宽度数据输入因子分析，以定义区域聚类。得到了七个宽度因子。发现区域宽度在前体对性别×利手交互作用敏感，右利手女性和左利手男性的区域宽度更大。在后体，男性的胼胝体比女性宽。在“峡部”区域内的进一步分析比较了一致和不一致的右利手男性和女性。一致的右利手男性和两个女性组的胼胝体比不一致的右利手男性小。这些发现证实了利手一致性作为影响人类胼胝体形态的一个重要自变量的作用。
