2022 Fiscal Year Final Research Report
Improvements of foreign language comprehension via pupil dilation: overlearning and spaced repetition
| Project/Area Number |
19K00801
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 02100:Foreign language education-related
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| Research Institution | Seijo University |
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Principal Investigator |
Kubota Mikio 成城大学, 文芸学部, 名誉教授 (60259182)
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| Project Period (FY) |
2019-04-01 – 2023-03-31
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| Keywords | 瞳孔径拡張 / 脳内音声処理 / ミスマッチ成分 / 子音分別能力 / 母音分別能力 |
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| Outline of Final Research Achievements |
I have found that comprehension abilities for Japanese learners of English were promoted by pupil dilation (one of the indexes in psychobiological measurements). Instead of using conscious phonetic training that lasts for a long period of time, I suggest that pupil dilation during foreign language comprehension may be an effective method. Results demonstrated that pupil dilation improved scores of English vowel pair tests and consonant pair tests. Furthermore, I discovered that a mixed method of overlearning and spaced interval was an effective instructional strategy, as well as shortening intervals between reviews for low language proficiency learners.
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| Free Research Field |
言語習得 心理言語学 言語脳科学
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| Academic Significance and Societal Importance of the Research Achievements |
瞳孔径拡張が半無意識的に日本人英語学習者が苦手とする母音と子音の識別能力を上達させるたことが判明した。教育現場で瞳孔径拡張トレーニングを導入する意義があることが明らかになった。更に過剰学習と間隔反復を組み合わせる復習方法を現場で導入し、特に低い学習習熟度の学習者には復習間隔を短くする指導法を実践させるのが適切である。音声教育に瞳孔径拡張の手法を取り入れるのは社会的に意義深い。T/Fテストという長時間を要する音声訓練方法を継続するのではなく、聴覚時に超小さな円から超巨大な円を見ることにより生じる瞳孔径拡張が成績向上につながるという本結果は外国語教育のみならず教育全般で重要な教育的な指摘と言える。
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