Adaptiveness of food learning and food aversions in children

Social Science Information - Tập 37 Số 4 - Trang 613-632 - 1998
Elizabeth Cashdan1
1University of Utah

Tóm tắt

This paper uses an evolutionary perspective to explain features of food learning in human children. Data from Western parents indicate that (1) children are least picky about foods when they are between one and two years of age, (2) vegetables are frequently refused by children, and (3) children have a tendency to eat foods one at a time rather than mixed together. Adaptive explanations for these patterns are suggested, together with supporting evidence from studies of the ontogeny of human and non-human primate diet choice. The following arguments are made: (1) age difference in receptiveness to new foods is consistent with the existence of a sensitive period for learning about food; (2) since leaves and other non-fruit plant parts often contain toxic secondary compounds and young animals are less able to detoxify these chemicals than are adults, an initial dislike of vegetables may function to protect young children against the risk of poisoning; (3) a preference for easily identifiable foods eaten separately may be an evolved preference that aids in identification of the food and the consequences of eating it.

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Tập 37 Số 4

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