In striking contrast, the human brain showed more messenger RNA differences when compared to the chimp brain, indicating a far greater rate of evolutionary change in gene expression. Moreover, chimpanzee and macaque gene expression patterns were more similar to each other than to the human pattern. The researchers also found unique differences in expression of proteins in the human brain. Thus, humans seem to have sped up the rate of change of gene expression selectively in their brains, accumulating expression differences at least five times faster than chimpanzees.
One really must wonder how a scientist who was so intelligent as to conceive of and perform this study could say the above. How does one selectively change one's brain? Is he implying that pre-humans had the knowledge to do such a thing? Or is this a half-hearted attempt by these scientists to kneepad themselves before the demi-god Darwin?
Probably just bad grammer. He should have said that "the rate of change...of humans was sped up" rather than implying that the humans did it conciously. The way it is stated would actually be anti-darwinian, since Darwinism relies on random mutatations and differences between individuals interacting with environmental changes to selectively cause greater survival of animals (or plants) carrying those characteristics. Sort of like selective breeding, but with Nature as the breeder, selecting those traits best suited to survival in new environments.
One does not change one's own brain. But one can improve the brain of his children be selecting the smartest mate.
The article implies that intelligence in humans serves as an attractant, like the plumage on the birds of paradise.