Brain size , IQ , and racial-group differences : Evidence from musculoskeletal traits

  title={Brain size , IQ , and racial-group differences : Evidence from musculoskeletal traits},
  author={J. P. Rushton and Elizabeth W. Rushton},
A review of the world literature on brain size and IQ by Rushton [Rushton, J. P. (1995). Race, evolution, and behavior: a life history perspective. New Brunswick, NJ: Transaction] found that African-descended people (Blacks) average cranial capacities of 1267 cm, European-descended people (Whites) 1347 cm, and East Asian-descended people (East Asians) 1364 cm. These brain size differences, containing millions of brain cells and hundreds of millions of synapses, were hypothesized to underlie the… CONTINUE READING
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