Do Whites and Blacks differ in the size, weight, or form of the brain?

Question

I'm trying to understand the extent of the physical differences between the races. At this moment, I am not concerned with the social significance of those differences. I am asking only about their existence and, if they exist, about their magnitude.

It may be helpful to know about racial differentials in skull dimensions, including the thickness of the skull bones, and in volume estimates of cranial capacity. How widespread are such racial differentials, geographically?

Answer 1

On the outside, there's not a lot of difference between Black heads and White ones. There is a slight difference, however, with Whites having the larger heads.  But the big difference is in the size of the brain. Blacks have thicker skulls, which means that a higher percentage of their heads is bone instead of brain.

Empirical data obtained from MRI (Magnetic Resonance Imaging) and autopsies have shown that brain volumes average 1427 cubic centimeters for Whites, but only 1361 cubic centimeters for Blacks.

In weight measurements, the brains of African Blacks were found to weigh an average of 1157 grams, whereas those of pure Whites weighed an average of 1323 grams. The brains of US-resident Blacks, who have a bit of White mixture in their genetic makeup, average 1223 grams in weight.

That 100-gram weight difference, between White Americans and US-resident Blacks, corresponds to an approximate 600 million neuron advantage for Whites.  In 600 million neurons, there are about 600 billion synapses, each of which carries, as a minimum, one bit of cortical information.

Also, Whites apparently have a larger genus to splenium ratio (front to back part of corpus callosum), which indicates that Whites probably have more activity in the frontal lobes which are thought to be the seat of intelligence. One study found that White cerebrums exhibited 14% more sulsification, or fissuring, as compared with those of Blacks. So, not only are White brains larger, they are also significantly more complex.

Answer 2

Lol, I can extend on my answer to the other question...

Black people are taller generally (basket ball players...?) and Oriental people are shorter generally.  I believe (not certain on this) that black people also have thicker bones and stronger skin due to the ancient need to fight and hunt.  This has evolved out of people and white people tend to be more frail and weaker in general, and more intelligent.

I don't have any particular measurements or information about skull dimensions, but as far as I know skulls and generally the same size on the outside, but certain races have thicker skulls and therefore have smaller brains.

If you relate us to monkeys you can see how this relates socially.  About how the larger the primates brain, the bigger social group they are in.  The smaller a man's brain, the more solitary he is.

I'm sorry that I don't have a huge amount of information on this, I'm just relaying information that I've heard or read.  Sorry about how I cannot be precise.

PLEASE NOTE:  These are generalisations, and not everyone of these races will have implied statistics in common with those mentioned here.  This answer is not intended to be an act of racism, I am just relaying answers from things I've heard or read.

Answer 3

so if you believe being white makes you superior than you must feel that orientals are more superior than whotes ...because of intelligence scores

anyways talk like this is all sterotyping BS

as to the guy rambling above his theory is ruined with whites being smarter ...when compared to orientals

its sad that people who have low self esteem of themselves need to find a excuse why they are superior