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Morphological acquisition in early infancy: Experimental and computational studies

婴儿早期的形态习得：实验和计算研究

基本信息

批准号：
2024498
负责人：
Megha Sundara
金额：
$ 45.03万
依托单位：
University of California-Los Angeles
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2020
资助国家：
美国
起止时间：
2020-09-01 至 2024-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2024498&HistoricalAwards=false
关键词：
Morphological acquisition early infancy Experimental

项目摘要

Morphological suffixes like English -s, -ed and -ing are basic building blocks of grammar. Limited use of morphological suffixes characterizes the speech of children with developmental disorders like SLI and autism. To promote language learning in typical and atypical populations, it is therefore necessary for us to understand how and when infants acquire morphology. This project is focused on investigating the beginnings of morphological acquisition in English and Spanish. By integrating experiments with infants as young as 6-months, corpus analysis and state-of-the-art computational modeling, this project seeks to establish when and how infants begin to acquire morphology. By additionally focusing on Spanish, a language in which the acquisition timetable is far less known than in English, this project will also increase access to participation in research activities. Integrating the behavioral and computational results from this project will shed light on the representations, time course of learning as well as mechanisms involved in the acquisition of morphology. Specifically, infant experiments will provide evidence for linguistic representations underlying morphological acquisition and document the developmental trajectory for the acquisition of morphological affixes. Next, using computational modeling, a morphological learner will be reverse engineered; its performance to be evaluate against the developmental trajectory of morphological acquisition uncovered in the infant experiments. Computational modeling will subsequently be used to pinpoint infant experiments that are most likely to distinguish between alternate theories; this is crucial particularly because infant research is time and resource intensive. Finally, as part of the project we anticipate generating a large, annotated corpus of infant-directed speech which will be publicly available for researchers investigating language acquisition.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

像英语中的-s、-艾德和-ing这样的词缀是语法的基本组成部分。有限的形态后缀的使用是像SLI和自闭症这样的发育障碍儿童的语言特征。因此，为了促进典型和非典型人群的语言学习，我们有必要了解婴儿如何以及何时获得形态学。这个项目的重点是调查英语和西班牙语的形态习得的开始。通过整合6个月大的婴儿实验、语料库分析和最先进的计算建模，该项目旨在确定婴儿何时以及如何开始获得形态。该项目还将重点放在西班牙语上，因为西班牙语的学习时间表远不如英语那么为人所知，因此该项目还将增加参与研究活动的机会。整合行为和计算的结果，从这个项目将阐明的表征，学习的时间过程，以及在收购的形态所涉及的机制。具体而言，婴儿实验将提供证据的语言表征基础的形态收购和文件的发展轨迹收购形态词缀。接下来，使用计算建模，形态学学习者将被逆向工程;其性能将根据婴儿实验中发现的形态学习得的发展轨迹进行评估。计算模型随后将被用来确定最有可能区分替代理论的婴儿实验;这是至关重要的，特别是因为婴儿研究是时间和资源密集型的。最后，作为该项目的一部分，我们预计将产生一个大型的，注释语料库的婴儿为导向的讲话，这将是公开的研究人员调查语言acquisition.This奖项反映了NSF的法定使命，并已被认为是值得通过评估使用基金会的智力价值和更广泛的影响审查标准的支持。