Neurobiol Aging 33 — National Center for Biotechnology InformationU. No Conflict of Interest The research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
While this contrasts with the initially reported larger splenial dimensions in female brains DeLacoste-Utamsing and Holloway, 4it corroborates more recent outcomes from various other studies i.
Intra-scan motion leads to blurring and phase-related artifacts. The above procedure resulted in 37 pairs of males and females. Ann Brain sex differences corpus callosum images in St. Paul. The CCA can be affected by the number, density, and composition of callosal fibers with different diameters.
Oxford University Press is a department of the University of Oxford. Within the cerebrum, no region has received more attention in both race and sex difference research than the corpus callosum, a thick band of nerve fibers that carries signals between the two cerebral hemispheres.
Sexual dimorphism in the corpus callosum is not a simple artifact of sex differences in brain size and may reflect differences in connectivity necessitated by differences in brain size. To automatically find the CC on a test image: We segmented all scans in our cohort using this method.
Statistical Analysis Developmental patterns were analyzed using the nonparametric local smoothing model called locally weighted regression analysis LOESS [ 35 ] with R 2. The influence of handedness and gender on the microstructure of the human corpus callosum: a diffusion-tensor magnetic resonance imaging study.
Correspondence should be addressed to: Dr.
The present data show that each area of the corpus callosum increases markedly in area, particularly in the first few months from birth and regardless of sex. Sex differences in the human corpus callosum microstructure: a combined T2 myelin-water and diffusion tensor magnetic resonance imaging study.
Neuroimage 65 — For example, in this study, whole CC and subregion areas peaked later when compared to diffusion tensor imaging studies, which reported peak diffusion properties in the early 20's in anterior regions and peak values in posterior regions as late as the early 30's [Hasan et al.
The studies suggest that sex differences in the anterior and posterior sections may be due to differences in parameters of the fibers, such as axon number, size or myelination processes.