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I've read about neuroscience and listen to talks like this one Juan Enriquez: Will our kids be a different species, I'm starting to realize that humans are not all the same, and are instead quite different.

My question is: how "different" are humans from each other from a point of view of neuroscience and neurobiology?

One of the talks at TED.com gave a number that Homo Sapiens is 0.004% different from Neanderthal genetically. Another example given that olympic powerlifters have a certain genetic marker that the general population might not have.

To refine the question: just how different from the perspective of white matter tract anatomy or the distribution of receptors within our neuronal populations are humans of the same haplogroup from one another?

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And what do you want to compare? Different skills (e.g. verbal intelligence), different anatomy, different neurochemistry? –  Piotr Migdal Oct 31 '12 at 15:58
I think this is an interesting question, so I tried to refine the requirements to make it answerable, feel free to modify or roll back. –  Chuck Sherrington Aug 2 '13 at 6:24

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