The role of the proto-lexicon in the acquisition of Japanese
Project/Area Number |
24520446
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Linguistics
|
Research Institution | The Institute of Physical and Chemical Research |
Principal Investigator |
MARTIN Andrew 独立行政法人理化学研究所, 脳科学総合研究センター, 研究員 (20591671)
|
Project Period (FY) |
2012-04-01 – 2015-03-31
|
Project Status |
Completed (Fiscal Year 2014)
|
Budget Amount *help |
¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
|
Keywords | 言語獲得 / 対乳児発話 / 国際情報交換 / 音声学 / 発達心理学 |
Outline of Final Research Achievements |
The goal of this project was to explore the role played by infant-directed speech in the acquisition of a language's sound system. We pursued this question through the analysis of a corpus of recordings of mothers speaking both to their infant and to an adult experimenter. By comparing the two types of speech, we made a number of discoveries. We found that mothers devoice high vowels less often when speaking to infants, and that they lengthen function words, but not content words. We also made two discoveries which overturned previously held theories of infant-directed speech. First, we found that infant-directed speech is not in fact slower than adult-directed speech. We also found that, contrary to earlier research, sounds in infant-directed speech are not pronounced more clearly by mothers when speaking to infants.
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Report
(4 results)
Research Products
(11 results)