| | | | | 小学儿童词汇获得的自组织模型 | | | 邢红兵;舒华;李平 | | | 本研究利用已有的数据库及相关研究成果,实现了汉字字形和字音的表征,并运用自组织特征映射模型的生理合理性和心理合理性,对小学儿童词汇获得的心理机制进行了模拟。模型成功地模拟出了形声字命名的年级效应、频率效应、规则性效应及其交互作用。模拟结果与儿童行为实验的发现基本一致。这一模拟结果也与数据库的统计分析结果相一致,表明了儿童语言发展规律与输入学习材料的统计属性的一致性。
【作者单位】：北京语言大学对外汉语研究中心;北京师范大学认知神经科学与学习研究所;美国里士满大学
【关键词】：联结主义理论;词汇获得;自组织模型;形声字;规则性效应
【基金】：国家自然科学基金(30470574,60534080);全国教育科学“十五”规划重点课题(DBA010171)的资助
【分类号】：G623.2
【DOI】：CNKI:SUN:DDYX.0.2007-03-000
【正文快照】：
1.引言在过去的三十年间,对英语读音的心理加工机制的解释主要有两大观点,一种是基于规则的解释,即有一组“规则”可以处理英语中的规则词读音,另外一个机制处理不规则的例外词,“双通道”理论是这种解释的主要代表。联结主义理论(connectionism)则认为词汇识别是通过大量简单 | | | | | |  推荐 下载CAJ全文  下载PDF全文 | | | CAJViewer7.0阅读器支持所有CNKI文件格式，AdobeReader仅支持PDF格式 | | | | A self-organizing model of vocabulary acquisition by elementary school children | | | XING Hongbing;SHU Hua and LI Ping University of Richmond;Richmond;Virginia 23173;U.S.A. | | | This study reports a connectionist model of vocabulary acquisition by elementary school children. Our model is based on the self-organizing feature maps which have significant psychological and biological plausibility. The model derives the orthographic and phonological representations of Chinese phonograms on the basis of realistic language corpus from vocabulary learning by elementary school children, and successfully simulates the effects of grade, regularity, frequency, and their interactions. The results from our modeling match up with children's learning patterns found in empirical studies, and are also consistent with statistical analyses of the available language corpora. Our study shows that children's vocabulary acquisition reflects their learning of statistical regularities inherent in the linguistic input.
【Keyword】：connectionism, vocabulary acquisition, self-organizing models, phonograms, regularity effects |
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