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May, 1990
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As with most primates, optimal development in infancy proceeds with a high degree of intimacy and interaction between infants and caretakers. Human infants are less developed at birth than most primates because of selection for a greater percentage of brain growth to take place after birth than in utero. Reasons for delayed development of brain include the high degree of intimacy between maternal and fetal systems because of the hemochorial placenta; the upper limits to intrauterine brain development imposed by the maternal pelvis; and the advantage of having the brain develop in the more challenging environment outside the uterus. The impact of delayed development on the caretaker is reviewed, as are the effects of the quality of the neonatal environment on subsequent development of visual, locomotor, linguistic, and manipulative skills.


Blakemore, C. and Cooper, G.F. Development of the Brain Depends on the Visual Environment. Nature 228:477-478, 1970.

Bowlby, J. Attachment and Loss, Vol. I, Attachment. London: Hogarth Press, 1969.

Brazelton, T.B., Scholl, M.L. and Robey, J.S. Visual Responses in the Newborn. Pediatrics 37:284-290, 1966.

Bronson, G.W. Structure, Status, and Characteristics of the Nervous System at Birth. Psychobiology of the Human New Born, (ed.) P. Stratton. New York: John Wiley and Sons, 1982.

Crelin, E.S. Functional Anatomy of the Newborn. New Haven: Yale University Press, 1973.

Day, M.H. Guide to Fossil Man, Fourth Edition. Chicago: University of Chicago Press, 1986.

Eaton, S.B., Shostak, M. and Konner, M. The Paleolithic Prescription. N.Y.: Harper and Row, 1988.

Goodman, M. On the Emergence of Intra-specific Differences in the Protein Antigens of Human Beings. American Naturalist 95(875):153-166, 1960.

Goodman, M. The Role of Immunochemical Differences in the Phenetic Development of Human Behavior. Human Biology 33:131, 1961.

Goren, C.C., Sarty, M. and Wu, P.Y.K. Visual Following and Pattern Discrimination of Face-like Stimuli by Newborn Infants. Pediatrics 56:544-549, 1975.

Gould, S.J. Ontogeny and Phylogeny. Cambridge, MA: Harvard University Press, 1977.

Haith, M.M. Rules that Babies Look By. Hillsdale: Lawrence Erlbaum, 1980.

Harlow, H.F. The Nature of Love. The American Psychologist 13:637-685, 1958.

Harlow, H.F. and Harlow, M.K. The Affectional Systems. Behavior of Nonhuman Primates, Vol. H. (eds.) A.M. Schrier, H.F. Harlow and F. Stollnitz. New York: Academic Press, 1965.

Harlow, H.F., Harlow, M.K. and Hansen, E.W. The Maternal Affectional System of Rhesus Monkeys. Maternal Behavior in Mammals, (ed.) H.L. Rheingold. New York: John Wiley and Sons, Inc., 1963.

Harvey, P.H. and Clutton-Brock, T.H. Life History Variation in Primates. Evolution 39:559-381, 1985.

Hinde, R.A. Biological Bases of Human Social Behavior. New York: McGraw-Hill Book Company, 1974.

Hinde, R.A. and Simpson, M.J. A. Qualities of Mother-infant Relationships in Monkeys. Parent-Infant Interaction, CIBA Foundation Symposium 33. Amsterdam: Elsevier, 1975.

Hinde, R.A. and Spencer-Booth, Y. Effects of Brief Separation from Mothers on Rhesus Monkeys. Science 173:111-118, 1971.

Johanson, D. and Edey, M. Lucy. N.Y.: Simon and Schuster, 1981.

Kaye, K. Toward the Origin of Dialogue. Studies in Mother-Infant Interaction, (ed.) H.R. Schaffer. London: Academic Press, 1977.

Konner, M.J. Aspects of the Developmental Ethology of a Foraging People. Ethological Studies of Child Behavior, (ed.) N. Blurton Jones. Cambridge: Cambridge University Press, 1972.

Konner, M.J. Newborn Walking: Additional Data. Science 179:307, 1973.

Konner, M.J. Infancy Among the Kalahari Desert San. Culture and Infancy, (eds.) P.H. Leiderman, S.R. Tulkin, and A. Rosenfeld. N.Y.: Academic Press, 1977.

Korner, A. and Thoman, E. Visual Alertness in Neonates as Evoked by Maternal Care. Journal of Experimental Child Psychology 10:67-78, 1970.

Laughlin, CD. Pre- and Perinatal Anthropology: A Selective Review. Pre- and Perinatal Psychology 3(4):261-296.

Lewin, R. How Did Humans Evolve Big Brains? Science 216:840-841, 1982.

Montagu, M.F.A. Neonatal and Infant Immaturity in Man. Journal of the American Medical Association 178:56-57, 1961.

Rovee-Collier, C.K. and Lipsitt, L.P. Learning, Adaptation, and Memory in the Newborn. Psychobiology of the Human Newborn, (ed.) P. Stratton. New York: John Wiley and Sons, 1982.

Schaal, B. Olfaction in Infants and Children: Developmental and Functional Perspectives. Chemical Senses 13:145-190, 1988.

Schultz, A.H. Sex Differences in the Pelves of Primates. American Journal of Physical Anthropology 7:401-424, 1949.

Stratton, P. Significance of the Psychobiology of the Human Newborn. Psychobiology of the Human Newborn, (ed.) P. Stratton. New York: John Wiley and Sons, 1982.

Stratton, P. Biological Preprogramming of Infant Behavior. Journal of Child Psychology and Psychiatry 24:301-309, 1983.

Trevarthen, C. Facial Expressions of Emotion in Mother-infant Interaction. Human Neurobiology 4:21-32, 1985.

Trevathan, W.R. Human Birth: An Evolutionary Perspective. Hawthorne, NY: Aldine de Gruyter, 1987.

Trevathan, W.R. Fetal Emergence Patterns in Evolutionary Perspective. American Anthropologist 90:19-26.

Turkewitz, G. The Study of Infancy. Canadian Journal of Psychology 33:408-412,1979.

Walker, A. and Teaford, M. The Hunt for Proconsul. Scientific American, January, 1989.

Wolff, P.H. Observations on Newborn Infants. Psychosomatic Medicine 21:110-118, 1959.

Wolff, P. Sucking Patterns of Infant Mammals. Brain, Behavior and Evolution 1:354-367, 1968.

Zelazo, P.R., Zelazo, N.A. and Kolb, S. "Walking" in the Newborn. Science 176:314-315, 1972.

Wenda R. Trevathan, Ph.D.

New Mexico State University

Wenda Trevathan, a biological anthropologist, is an associate professor of anthropology at New Mexico State University. Her research interests focus on the evolution of human reproductive behavior with special emphasis on childbirth and the socio-sexual effects on ovarian functioning. Address correspondence to her at the Department of Sociology and Anthropology, New Mexico State University, Box 3BV, Las Cruces, NM 88003.