Brain Structure and IQ: How Myelin Elevates Intelligence

How does brain structure create different levels of intelligence? I was somewhat surprised to find that the leading researcher of the relationship between neurobiology and IQ, Richard Haier, is not mentioned anywhere on LessWrong, at least according to the search function. The following post reviews current leading academic literature on the neurobiology of intelligence which is highly suggestive of the role of white matter tracts in the deep brain for elevating psychometric g. In addition to wo...