期刊
HUMAN NATURE-AN INTERDISCIPLINARY BIOSOCIAL PERSPECTIVE
卷 25, 期 1, 页码 161-179出版社
SPRINGER
DOI: 10.1007/s12110-014-9192-5
关键词
Social learning; Cultural transmission; Imitation; Experimental microsocieties; Cultural evolution
Imitation, the replication of observed behaviors, has been proposed as the crucial social learning mechanism for the generation of humanlike cultural complexity. To date, the single published experimental microsociety study that tested this hypothesis found no advantage for imitation. In contrast, the current paper reports data in support of the imitation hypothesis. Participants in microsociety groups built weight-bearing devices from reed and clay. Each group was assigned to one of four conditions: three social learning conditions and one asocial learning control condition. Groups able to observe other participants building their devices, in contrast to groups that saw only completed devices, show evidence of successive improvement. These results are consistent with the hypothesis that imitation is required for cumulative cultural evolution. This study adds crucial data for understanding why imitation is needed for cultural accumulation, a central defining feature of our species.
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