Well heres something written on it at least and I will be digging up a bit more:

www.healingtides.net...

Tell me Dr. Amen, why do men need 100 grams more brain tissue to get the same things done as women." It has been estimated that women have a greater number of cellular connections than men. As mentioned, each nerve cell is connected to other nerve cells through synaptic connections, typically, a woman has more of these connections. Men tend to be more left sided in their approach to life, while women tend to use both sides more often then men. This is very important in helping us u nderstand the differences between men and women. In language, men tend to be totally left sided, more detail oriented, and more directly to the point. Women, more often than not, use both sides, tend to be more fluent, which may be why they have more to say. When husbands and wives get into arguments their brain hemisphere activation styles often make problems worse. Because women use more words, men often become overwhelmed in disagreements and say insensitive things like "what's the point," or "specifically what do you want." These statements infuriate women and make communication even tougher. They know the point, they just have a harder time articulating it succinctly due to the extra input from the right side.

www.dawn.com...

1. Brain size: Human male brains are, on average, approximately ten per cent larger than female, but this is because of men’s larger body size; more muscle cells imply more neurons to control them.

2. Number of cells: Men have four per cent more brain cells than women, and about 100 grams more of brain tissue.

3. Cellular connections: Even though a man seems to have more brain cells, it is reported that women have more dendritic connections between brain cells.

4. Corpus collosum size: Women can transfer data between the right and left hemisphere faster than men. Men tend to be more left brained, while women have greater access to both sides.

5. Language: For men, language is most often just in the dominant hemisphere (ninety percent the left side), but women are able to use both sides for language. This gives them a distinct advantage. If a woman has a stroke in the left front side of the brain, she may still retain some language from the right front side. Men who have the same left sided damage are less likely to recover as fully.

6. Limbic size: This determines bonding and nesting instincts. Women have larger limbic systems than men. This, however, has advantages as well as disadvantages. Due to the larger deep limbic brain women are more in touch with their feelings and are more expressive and open than men (societal pressure on man to be emotionally stronger also affects this aspect).

Women are closer and connected to others (which is why moms are the primary caretakers for children in all societies). Females have a more acute sense of smell, which is likely to have developed from an evolutionary need for the mother to recognize her young. The downside of large limbic size is that women are somewhat more susceptible to depression, especially at times of significant hormonal changes. Women attempt suicide three times more than men. [Yet, men kill themselves three times more than women, in part, because they use more violent means of killing themselves (women tend to use overdoses with pills while men tend to either shoot or hang themselves). Moreover, men are generally less connected to others than are women. Disconnection from others increases the risk of completed suicides.

7. Inferior-parietal lobule (IPL):This is a brain region in the cortex (the cortex is responsible for the higher intellectual and cognitive functions of the brain), significantly larger in men than in women. Furthermore, the left side IPL is larger in men than the right side. This is the same area, which was shown to be larger in the brain of Albert Einstein, as well as in other physicists and mathematicians. So, it seems that IPL’s size correlates highly with mental mathematical abilities.

Differences in processing language, emotion, perception, etc.

Men and women estimate time, judge speed of things, carry out mental mathematical calculations, orient in space, visualize objects in three dimensions and process language in strikingly different ways. This may be the reason whey there are many more male mathematicians, airplane pilots, bush guides, mechanical engineers, architects and racecar drivers than female ones.

Women are better than men in human relations, recognizing emotional overtones in others and in language, emotional and artistic expressiveness, esthetic appreciation, verbal language and carrying out detailed and pre-planned tasks. For example, women generally can recall lists of words or paragraphs of text better than men.

When it comes to empathizing, women tend to be higher than males in verbal skills, social skills and security-seeking, while men tend to be higher in independence, dominance, spatial and mathematical skills, and rank-related aggression.

Two areas in the frontal and temporal lobes related to language (the areas of Broca and Wernicke, named after their discoverers) were significantly larger in women, thus providing a biological reason for women’s notorious superiority in language-associated thoughts.

Men have more neurons in the cerebral cortex, whereas women have a more developed neuropil, or the space between cell bodies, which contains synapses, dendrites and axons, and allows for communication among neurons. This research may explain why women are more prone to dementia (such as Alzheimer’s disease) than men, because although both may lose the same number of neurons due to the disease, in men, the functional reserve may be greater as a larger number of nerve cells are present, which could prevent some of the functional losses.



So who is superior?

Do these differences mean a superiority/inferiority relationship between men and women?

No, most scientists won’t agree with this. To say that men are automatically better at some things than women (or vice versa) is a sweeping statement. Women are good at math and physics and men do excel in language skills. Neuroscience has made great strides in the ninetees regarding the discovery of concrete, scientifically proved anatomical and functional differences between the brains of men and women. While this knowledge could in theory be used to justify prejudice against women, this should not be allowed o happen.