Individual differences in brain asymmetries and fiber composition in the human corpus callosum.

@article{ArtikelAboitiz1992, abstract = {There have been several recent reports concerning individual differences in the gross morphometry of the human corpus callosum. However, no studies exist on individual differences in the fiber composition of the corpus callosum. Here we report for the first time the relation of fiber composition in specific callosal segments (as seen in light microscopy) to anatomical asymmetries in language-gifted cortex, as a function of sex. We found a significant negative correlation between Sylvian fissure asymmetries and the total numbers of fibers in the isthmus of males, and in the anterior splenium of females. In addition, a population of relatively large fibers (between 1 micron and 3 microns in diameter) in the isthmus showed a strong negative correlation with perisylvian asymmetries only in males. These findings suggest a sex-dependent, pathway-specific decrease in interhemispheric connectivity with increasing lateralization.}, author = {Aboitiz, F. and Scheibel, A. B. and Fisher, R. S. and Zaidel, E. }, citeulike-article-id = {169849}, journal = {Brain Res}, keywords = {adult, aged, anatomy, animals, aptitude, arteries, attitude, callosum, child, comparative, corpus, curriculum, education, educational, emotions, environment, family, female, fibers, gifted, govt, health, humans, intelligence, laterality, male, medical, middle, music, nerve, non-us, of, parents, personnel, phs, physicians, practice, preschool, research, social, special, status, study, support, terminology, undergraduate, us}, month = {Dec}, number = {1-2}, pages = {154--61}, posted-at = {2005-04-25 16:51:14}, priority = {2}, title = {Individual differences in brain asymmetries and fiber composition in the human corpus callosum.}, volume = {598}, year = {1992} }

TY - JOUR ID - ArtikelAboitiz1992 L3 - citeulike-article-id:169849 TI - Individual differences in brain asymmetries and fiber composition in the human corpus callosum. JF - Brain Res VL - 598 IS - 1-2 SP - 154 EP - 61 N2 - There have been several recent reports concerning individual differences in the gross morphometry of the human corpus callosum. However, no studies exist on individual differences in the fiber composition of the corpus callosum. Here we report for the first time the relation of fiber composition in specific callosal segments (as seen in light microscopy) to anatomical asymmetries in language-gifted cortex, as a function of sex. We found a significant negative correlation between Sylvian fissure asymmetries and the total numbers of fibers in the isthmus of males, and in the anterior splenium of females. In addition, a population of relatively large fibers (between 1 micron and 3 microns in diameter) in the isthmus showed a strong negative correlation with perisylvian asymmetries only in males. These findings suggest a sex-dependent, pathway-specific decrease in interhemispheric connectivity with increasing lateralization. KW - adult KW - aged KW - anatomy KW - animals KW - aptitude KW - arteries KW - attitude KW - callosum KW - child KW - comparative KW - corpus KW - curriculum KW - education KW - educational KW - emotions KW - environment KW - family KW - female KW - fibers KW - gifted KW - govt KW - health KW - humans KW - intelligence KW - laterality KW - male KW - medical KW - middle KW - music KW - nerve KW - non-us KW - of KW - parents KW - personnel KW - phs KW - physicians KW - practice KW - preschool KW - research KW - social KW - special KW - status KW - study KW - support KW - terminology KW - undergraduate KW - us AU - Aboitiz, F AU - Scheibel, AB AU - Fisher, RS AU - Zaidel, E PY - 1992/Dec// ER -