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Article
Brain size and intelligence in man
Article first published online: 2 MAY 2005
DOI: 10.1002/ajpa.1330400314
Copyright © 1974 Wiley-Liss, Inc., A Wiley Company
1096-8644/asset/cover.gif?v=1&s=c25957633aab6b6ac1922fea9d9a5103f0357fec "American Journal of Physical Anthropology")
Additional Information
How to Cite
van Valen, L. (1974), Brain size and intelligence in man. Am. J. Phys. Anthropol., 40: 417–423. doi: 10.1002/ajpa.1330400314
Publication History
- Issue published online: 2 MAY 2005
- Article first published online: 2 MAY 2005
- Abstract
- References
- Cited By
Keywords:
- Brain size;
- Intelligence
Abstract
Although estimates of brain weight are useless in prediction of individual intelligence in man, the available data (none of them entirely adequate) suggest that the real correlation may be as high as 0.3. Evaluation of causes suggests the participation of a direct effect. Natural selection on intelligence at a current estimated intensity suffices to explain the rapid rate of increase of brain size in human evolution. Selection on birth weight may also suffice for this. It does not seem overly difficult to estimate directly the relationships among brain weight, intelligence, and fitness.