Why It Is Hard to Label Our Concepts.
Why It Is Hard to Label Our Concepts.
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为什么很难给我们的概念贴上标签。
DOI:
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发表时间:
2004
期刊:
影响因子:
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通讯作者:
Waxman
中科院分区:
文献类型:
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作者:
J. Snedeker;L. Gleitman;Hall;Waxman
1 But if the knowledge which we acquired before birth was lost by us at birth, and afterwards by the use of the senses we recovered that which we previously knew, will not that which we call learning be a process of recovering our knowledge, and may not this be rightly termed recollection?-Plato, Phaedo (c.a. 412BCE) One way to think about infants before they acquire their native tongue is as second-language (or reincarnated) learners whose task is only to find out how priorly known concepts, at the level of both words and sentences, are mapped onto linguistic forms. Life for these Platonic infants would be much easier than that faced by Quine's linguist, trapped in an exotic land where not only pronunciations but, simultaneously, the modes of thought, may be different from one's own. We ask here which of these models is closer to the real case, concentrating attention on the task of acquiring a first lexicon. The test bed for this question as raised in this chapter concerns the changing character of child vocabularies in the first three years of life. Specifically, the first vocabulary (the first 100 words or so), in various languages and under marvelously varying child-rearing conditions, massively over-represents the noun lexical class, compared to its frequency in the input corpus, and massively under-represents the verbs. A second widely observed property is that those verbs that do appear at the earliest stages of child speech and comprehension are largely limited to action terms such as go, run, and throw even though verbs like think and look are frequent in maternal speech. What accounts for such input-output disparities? Speaking very broadly, we can distinguish two general kinds of explanations for these systematic asynchronies in aspects of vocabulary development. The first of these emphasizes children's cognitive development. The alternative, which we will try to defend in this chapter, emphasizes linguistic development. The burden in maintaining this latter stance is to understand why, all the same, the abstract words are manifestly harder to acquire than the concrete ones. Plausibly enough, the changing character of vocabularies over developmental time is usually taken to reflect the changing character of the child's conceptual life. This kind of hypothesis comes in two main flavors, depending on whether the causal machinery for cognitive change is taken to be maturational or experiential. But in either case, the changes in the function over time are assigned …