From 'The Structure of the Human Brain', Allen, Damasio, and Bruss, American Scientist, May/June 2004, pp. 242.
When the sexually dimorphic corpus callosum was first suggested in the early 1980s, many scientists speculated that the "larger" band in women meant they had a greater degree of communication between the two hemispheres. This idea seemed to support the cliche that in women the "emotional, analytical" left side was more in touch with the other. Of course, we now know that women do not have larger corpus callosa than men. This fact doesn't preclude greater functional connectivity between the two hemispheres (as the cliche would have it), but there is no anatomical evidence for the claim.
They go on to describe how sexually dimorphic areas in the brain evolved well before the human 'cognitive revolution'.
Ironically the corpus callosum is actually larger in men, and once you control for height as a covariate, the difference between the two sexes shrinks by about two thirds. The main difference between the male and female brain lies in the ratio of gray matter to white matter. Men have a higher proportion of white matter; however, it consists primarily of additional blood vessels and non-neuronal components, which leads to little functional difference.
Current scientific consensus points to possible sexual dimorphism in language and spatial/visual tasks, but they are subtle and highly distributed throughout the brain.
is height directly or inversly porportional here?
asking as a tall-ish guy \(only 6'3") whom can't seem to find it after a couple of searches, and that 'height as covarible' peaked my interest.
I must say this is one of the best threads I've seen in a long time, a long time.
Well spoken Ice, during my divorce one of the best pieces of advice that I got was from a marriage counsellor. He told me to surround myself with women, but not to get romantically involved with any. This would make me feel somehow better about myself, and allow me to ward off my own selfish tendencies. It would also allow for a comfort level with members of the oposite sex that you can't have when worried about a potential romantic relationship.
I have done what you have described, but it kind of sucks when you eventually, even innocently, become attracted to one or more of the persons you've befriended, because you really don't want to ruin the estabilished friendshipss. and that starts to gnaw away at the confort level you have with them.
sometimes, like, I've actually stayed friends with someone whom shot me down with 'As a friend' thing, in june, which sort of is cool, as i
do feel comfortable hanging out with her, which is odd, as apart from sex, (duh-ish for a 18-year old male) that's all I'd want in a relationship; comfort. Think something's up with that?