期刊
AMERICAN ANTIQUITY
卷 79, 期 1, 页码 128-143出版社
CAMBRIDGE UNIV PRESS
DOI: 10.7183/0002-7316.79.1.128
关键词
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Copying errors that occur during the manufacture of art (factual traditions are potentially a major source of variation. It has been proposed that material items produced via additive processes (e.g., pottery) will possess less variation than traditions produced via reductive processes (e.g., stone knapping). The logic of this premise is that additive production methods more readily allow for the reversal of copying errors compared to strictly reductive-only processes. Here, we tested this hypothesis in shape data using an experimental framework in which we generated and statistically analyzed morphometric (size-adjusted) shape data under controlled and replicable conditions. Participants engaged in one of two alternative conditions: an irreversible (reductive-only) manufacturing process or a reversible (additive-reductive) process. With a number of factors held constant, participants were required to copy the shape of a target form as accurately as possible using a standardized block of plasticine and a steel table knife. Results demonstrated statistically greater levels of shape-copying errors in the replicas produced in the reductive-only condition. This indicates that mutation rates in the shape attributes of artifactual traditions produced via reductive processes are inherently greater than those produced via alternative means. Several implications for the study of variation in artifactual traditions are discussed.
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