Conclusions
American crania have changed significantly in the past 150 years. In the sagittal plane, most of the change is associated with a downward movement of the cranial base, especially at basion. Secular change in American crania is proximately related to a decrease in cranial base breadth and an increase in cranial capacity, and ultimately a reflection of improved infant growth due to better health and nutrition. The environment of 20th century Americans has no parallel in history. Activity levels are at an all-time low, and diet has improved to the point where overnutrition has surpassed undernutrition as our most serious malnutrition problem (Flegal et al., 1998). In addition, epidemic infectious diseases are now mostly controlled, and mortality is at an all-time low (Armstrong et al., 1999). It is not surprising that there is a biological response to this unparalleled environmental change.
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References
Angel, J. L., 1976, Colonial to modern skeletal change in the U.S.A., Am. J. Phys. Anthropol. 45:723–736.
Angel, J. L., 1982, A new measure of growth efficiency: Skull base height, Am. J. Phys. Anthropol. 58:297–305.
Angel, J. L., Kelley, J. O., Parrington, M., and Pinter, S., 1987, Life stresses of the free black community as represented by the First African Baptist Church, Philadelphia, 1823–1841, Am. J. Phys. Anthropol. 74:213–229.
Armelagos, G. J. and Goodman, A. H., 1998, Race, racism, and anthropology, in: Building A New Biocultural Synthesis, A. H. Goodman and T. L. Leatherman, eds., University of Michigan Press, Ann Arbor, pp. 359–378.
Armstrong, G. L., Conn, L. A., and Pinner, R. W., 1999, Trends in infectious disease mortality in the United States during the 20th century, JAMA 281:61–66.
Boas, F., 1912, Changes in bodily form of descendants of immigrants, Am. Anthropol. 14:530–563.
Boas, F., 1940, Changes in bodily form of descendants of immigrants, in: Race, Language, and Culture, F. Boas, ed., Free Press, New York, pp. 60–75.
Boldsen, J. L., 2000, Human Demographic Evolution—Is it Possible to Forget about Darwin? Research Report No. 14, Danish Center for Demographic Research, Odense University.
Cameron, N., Tobias, P. V., Fraser, W. J., and Nagdee, M., 1990, Search for secular trends in calvarial diameters, cranial base height, indices, and capacity in South African Negro crania, Am. J. Hum. Biol. 2:53–61.
Carlson, D. S. and Van Gerven, D. P., 1977, Masticatory function and post-Pleistocene evolution in Nubia, Am. J. Phys. Anthropol. 46:495–506.
Carpenter, K. E., Sommer III, H. J., and Marcus, L. F., 1996, Converting truss interlandmark distances into Cartesian coordinates, in: Advances in Morphometrics, L. F. Marcus, M. Corti, A. Loy, G. J. P. Naylor, and D. E. Slice, eds., pp. 103–111.
Corruccini, R. S. and Whitley, L. D., 1981, Occlusal variation in a rural Kentucky community, Am. J. Orthod. 79:250–262.
Enlow, D. H., 1990, Facial Growth, 3rd ed., W. B. Saunders, Philadelphia.
Flegal, M. D., Carroll, R. J., Kuczmarski, R. J., and Johnson, C. L., 1998, Overweight and obesity in the United States: Prevalence and trends, 1960–1994, Int. J. Obes. Relat. Metab. Disord. 22:39–47.
Goose, D. H., 1962, Reduction of palate size in modern populations, Arch. Oral Biol. 7:343–350.
Goose, D. H., 1972, Maxillary dental arch width in Chinese living in Liverpool, Arch. Oral Biol. 17:231–233.
Howells, W. W., 1973, Cranial variation in man. Papers of the Peabody Museum of Archaeology and Ethnology, Volume 67, Cambridge.
Jantz, R. L., 2001, Cranial change in Americans: 1850–1975, J. Forensic Sci. 46:784–787.
Jantz, R. L. and Meadows Jantz, L., 2000, Secular change in craniofacial morphology, Am. J. Hum. Biol. 12:327–338.
Jantz, R. L. and Moore-Jansen, P. H., 1988, Report of Investigations No. 47, University of Tennessee, Knoxville.
Kouchi, M., 2000, Brachycephalization in Japan has ceased, Am. J. Phys. Anthropol. 112:339–347.
Larsen, C. S., 1997, Bioarchaeology: Interpreting Behavior from the Human Skeleton, Cambridge University Press, New York, p. 19.
Lieberman, D. E., Pearson, O. M., and Mowbray, K. M., 2000, Basicranial influence on overall cranial shape, J. Hum. Evol. 38:291–316.
Lundström, A. and Lysell, L., 1953, An anthropological examination of a group of Mediaeval Danish skulls, Acta Odontol. Scandinavica 11:111–128.
Lysell, L., 1958, A biometrical study of occlusion and dental arches in a series of Medieval skulls from northern Sweden, Acta Odontol. Scandinavica 16:177–203.
Meadows Jantz, L. and Jantz, R. L., 1999, Secular change in long bone length and proportion in the United States, 1800–1970, Am. J. Phys. Anthropol. 110:57–67.
Miller, A. K. H. and Corsellis, J. A. N., 1977, Evidence for a secular increase in human brain weight during the past century, Ann. Hum. Biol. 4:253–257.
Moore-Jansen, P. H., 1989, A multivariate craniometric analysis of secular change and variation among recent North American populations, Ph.D Dissertation, University of Tennessee, Knoxville.
Ousley, S. D. and Jantz, R. L., 1997, The Forensic Data Bank: Documenting skeletal trends in the United States, in: Forensic Osteology, 2nd ed., Charles C. Thomas, K. J. Reichs, ed., Springfield, IL, pp. 441–458.
Skuse, D. H., 1998, Growth and phychosocial stress, in: The Cambridge Encyclopedia of Human Growth and Development, S. J. Ulijaszek, F. E. Johnston, and M. A. Preece, eds., Cambridge University Press, New York, pp. 341–342.
Slice, D. E., 1998, Morpheus et al.: Software for Morphometric Research, Revision 01-30-98, Department of Ecology and Evolution, State University of New York, Stony Brook, NY.
Smith, B. H., Garn, S. M., and Hunter, W. S., 1986, Secular trend in face size, Angle Orthod. 56:196–204.
Sparks, C. S., 2001, Reassessment of cranial plasticity in man: A modern critique of changes in bodily form of descendants of immigrants, M.A. Thesis, University of Tennessee, Knoxville.
Sparks, C. S. and Jantz, R. L., 2002, A reassessment of human cranial plasticity: Boas revisited. PNAS 99:14636–14639.
van Wieringen, J. C., 1986, Secular growth changes, in: Human Growth, 2nd ed., vol. 3, F. Falkner and J. M. Tanner, eds., Plenum Press, New York, pp. 307–331.
Wescott, D. J. and Jantz, R. L., 2001, Examining secular change in craniofacial morphology using three-dimensional coordinate data, Am. Acad. Forensic Sci. Proc. 7:262–263.
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Wescott, D.J., Jantz, R.L. (2005). Assessing Craniofacial Secular Change in American Blacks and Whites Using Geometric Morphometry. In: Slice, D.E. (eds) Modern Morphometrics in Physical Anthropology. Developments in Primatology: Progress and Prospects. Springer, Boston, MA. https://doi.org/10.1007/0-387-27614-9_10
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