Do parents modify child-directed signing to emphasize iconicity?
Do parents modify child-directed signing to emphasize iconicity?
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DOI：
10.3389/fpsyg.2022.920729
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发表时间：
2022
影响因子：
3.8
通讯作者：
Caselli, Naomi K
中科院分区：
文献类型：
--
作者：
Gappmayr, Paris;Lieberman, Amy M;Pyers, Jennie;Caselli, Naomi K
在年幼的聋哑儿童的词汇中，标志性符号的比例过高，但原因尚不清楚。有可能标志性符号对儿童来说更容易学习，但也有可能成年人在儿童引导的手势中使用标志性符号，使其更容易学习，要么比不太标志性的符号更频繁地使用它们，要么延长它们。我们分析了父母和9-60个月的聋哑儿童（n = 24对）之间的自然游戏会议的视频。为了确定是否图标符号在儿童导向的签名过度，我们比较了实际的父产品的象似性模拟词汇的象似性，旨在估计象似性的机会水平。对于几乎所有的二元体，父母的标志类型和令牌没有更多的标志性比模拟词汇，这表明父母不选择更多的标志性标志在儿童导向的签名。为了确定标志性符号是否更有可能被延长，我们进行了线性回归预测符号持续时间，并发现年龄和图标性之间的相互作用：而年幼儿童的父母产生的非图标性和图标性符号持续时间相似，而年长儿童的父母产生的非图标性符号持续时间比图标性符号短。因此，父母与年龄较大的孩子比年幼的孩子更快地签署，标志性的标志似乎抵制标志长度的减少。这是可能的，标志性的标志是感知可用的时间更长，他们的可用性是一个候选假设，为什么标志性的标志是在儿童的词汇量过多。
Iconic signs are overrepresented in the vocabularies of young deaf children, but it is unclear why. It is possible that iconic signs are easier for children to learn, but it is also possible that adults use iconic signs in child-directed signing in ways that make them more learnable, either by using them more often than less iconic signs or by lengthening them. We analyzed videos of naturalistic play sessions between parents and deaf children (n = 24 dyads) aged 9–60 months. To determine whether iconic signs are overrepresented during child-directed signing, we compared the iconicity of actual parent productions to the iconicity of simulated vocabularies designed to estimate chance levels of iconicity. For almost all dyads, parent sign types and tokens were not more iconic than the simulated vocabularies, suggesting that parents do not select more iconic signs during child-directed signing. To determine whether iconic signs are more likely to be lengthened, we ran a linear regression predicting sign duration, and found an interaction between age and iconicity: while parents of younger children produced non-iconic and iconic signs with similar durations, parents of older children produced non-iconic signs with shorter durations than iconic signs. Thus, parents sign more quickly with older children than younger children, and iconic signs appear to resist that reduction in sign length. It is possible that iconic signs are perceptually available longer, and their availability is a candidate hypothesis as to why iconic signs are overrepresented in children’s vocabularies.
影响因子：
1.7
作者：
Meir I;Padden C;Aronoff M;Sandler W
通讯作者：
Sandler W