With its special focus on the effect of the cradleboard on Navajo mother-infant interaction, Navajo Infancy raises important developmental issues in its analyses of why the eff ects of the cradleboard do not last. Incorporating the Brazelton Neonatal Behavioral Assessment Scale into its ethological-anthropological methods, "Navajo Infancy" demonstrates signifi cant Navajo-Anglo-American differences in newborn temperament. It fi nds a strong correlation between newborn behavior and prenatal environmental factors, arguing that racial and ethnic differences in behavior at birth go well beyond simple gene pool differences.
"Navajo Infancy" also describes the individual and group differences in the development of Navajo and Anglo- American children's fear of strangers and patterns of mother-infant interaction. Aspects of attachment theory, transactional theories of development, and anthropological theories of socialization are related to this broad new evolutionary approach to the process of development and nature-culture interaction.
"James S. Chisholm" is professor at the school of Anatomy and Human Biology at the University of Western Australia. His research interests include Biological and Biosocial Anthropology. He is the author of "Death, Hope, and Sex and Cultural Persistence: Continuity in Meaning and Moral Responsibility Among the Bear Lake Athapaskans" (with S. Rushforth).
"Cary Michael Carney" is the program director of the ASVAB (Armed Services Vocational Aptitude Battery) student testing program, covering Missouri and Kansas for the Department of Defense.