2019 Fiscal Year Final Research Report
Electrophysiological assessment of abilites in a foreign language.
| Project/Area Number |
17K13519
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Foreign language education
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| Research Institution | Kansai University of Welfare Sciences (2019)
National Institute of Information and Communications Technology (2017-2018) |
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Principal Investigator |
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Keywords | 脳波 / 外国語能力 |
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| Outline of Final Research Achievements |
In order to develop a method that can objectively evaluate foreign language proficiency by using brain activities, we measured EEG while subjects were listening congruous or incongruous words with preceding pictures. The N400 effect, the amplitude when processing incongruous words subtracted from the one when processing congruous words, had significant correlation with test scores.
The EEG responses to 38 phonemes and words were estimated and these responses were compared between the proficient English group and the non-proficient English group. The EEG responses were different according to the type of phonemes in the proficient group, whereas these differences were not observed in the non-proficient group.The result shows that these responses are useful to objectively evaluate vocabulary level of foreign language.
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| Free Research Field |
生理心理学
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| Academic Significance and Societal Importance of the Research Achievements |
近年，外国語学習をどのように正確に評価し，その能力を判断していくのかという問題はますます重要性を増しているように思える。これまでの外国語能力の評価は主にペーパーテストにより行われてきた。言うまでもなく，ペーパーテストによる外国語能力評価は評価法のゴールデンスタンダードではあるが欠点があることも事実である。本研究の結果を応用することで，「どの程度」理解しているかなどの定量的な評価問題を設定せず，聞いているだけで理解の程度を評価し，音声を聞いているだけで「単語レベル」，「文法レベル」，「音素聞き取りレベル」などを独立に評価することが可能になる可能性がある。
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