Lew-Levy Sheina, Reckin Rachel, Lavi Noa, Cristóbal-Azkarate Jurgi, Ellis-Davies Kate
Department of Psychology, University of Cambridge, Free School Lane, Cambridge, CB2 3RQ, UK.
Division of Archeology, Department of Archaeology and Anthropology, University of Cambridge, Downing Street, Cambridge, CB2 3DZ, UK.
Hum Nat. 2017 Dec;28(4):367-394. doi: 10.1007/s12110-017-9302-2.
Hunting and gathering is, evolutionarily, the defining subsistence strategy of our species. Studying how children learn foraging skills can, therefore, provide us with key data to test theories about the evolution of human life history, cognition, and social behavior. Modern foragers, with their vast cultural and environmental diversity, have mostly been studied individually. However, cross-cultural studies allow us to extrapolate forager-wide trends in how, when, and from whom hunter-gatherer children learn their subsistence skills. We perform a meta-ethnography, which allows us to systematically extract, summarize, and compare both quantitative and qualitative literature. We found 58 publications focusing on learning subsistence skills. Learning begins early in infancy, when parents take children on foraging expeditions and give them toy versions of tools. In early and middle childhood, children transition into the multi-age playgroup, where they learn skills through play, observation, and participation. By the end of middle childhood, most children are proficient food collectors. However, it is not until adolescence that adults (not necessarily parents) begin directly teaching children complex skills such as hunting and complex tool manufacture. Adolescents seek to learn innovations from adults, but they themselves do not innovate. These findings support predictive models that find social learning should occur before individual learning. Furthermore, these results show that teaching does indeed exist in hunter-gatherer societies. And, finally, though children are competent foragers by late childhood, learning to extract more complex resources, such as hunting large game, takes a lifetime.
从进化的角度来看,狩猎和采集是我们人类特有的生存策略。因此,研究儿童如何学习觅食技能可以为我们提供关键数据,用以检验关于人类生活史、认知和社会行为进化的理论。现代觅食者具有丰富的文化和环境多样性,大多是被单独研究的。然而,跨文化研究使我们能够推断出觅食者群体在狩猎采集儿童如何、何时以及从谁那里学习生存技能方面的普遍趋势。我们进行了一项元民族志研究,这使我们能够系统地提取、总结和比较定量和定性文献。我们发现了58篇关注学习生存技能的出版物。学习在婴儿期就开始了,那时父母会带孩子去觅食探险,并给他们工具的玩具版本。在童年早期和中期,孩子们会进入多年龄段的游戏小组,在那里他们通过玩耍、观察和参与来学习技能。到童年中期结束时,大多数孩子都成为了熟练的食物采集者。然而,直到青春期,成年人才(不一定是父母)开始直接教孩子一些复杂的技能,比如狩猎和复杂工具制造。青少年试图从成年人那里学习创新,但他们自己并不创新。这些发现支持了预测模型,该模型认为社会学习应该先于个体学习发生。此外,这些结果表明,在狩猎采集社会中确实存在教学行为。最后,虽然儿童到童年晚期时已成为有能力的觅食者,但学习获取更复杂的资源,比如猎杀大型猎物,需要一生的时间。