The Grauniad reports a study of 949 young peoples’ brains, showing stronger front-to-back connections in male brains and stronger left-to-right connections in female brains. We are told to understand that
These connections likely give men an efficient system for coordinated action, where the cerebellum and cortex participate in bridging between perceptual experiences in the back of the brain, and action, in the front of the brain, according to the authors. The female connections likely facilitate integration of the analytic and sequential processing modes of the left hemisphere with the spatial, intuitive information processing modes of the right side.
It seems plausible that there is sexual dimorphism in the brain, though any interpretation of the functional consequences is likely to be simplistic – especially when the popularly misunderstood lateralisation of function is invoked. The text of the article is $10 away, but neither the abstract nor the news release include any discussion of the extent or statistical significance of the dimorphism.
I’m hoping to see some more informed comments (than mine!) under the Neuroscience News coverage of this study.