| 研究課題/領域番号 |
20K20152
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| 研究種目 |
若手研究
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| 配分区分 | 基金 |
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| 審査区分 |
小区分90030:認知科学関連
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| 研究機関 | 九州大学 |
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研究代表者 |
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| 研究期間 (年度) |
2020-04-01 – 2024-03-31
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| 研究課題ステータス |
完了 (2023年度)
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| 配分額 *注記 |
3,250千円 (直接経費: 2,500千円、間接経費: 750千円)
2022年度: 520千円 (直接経費: 400千円、間接経費: 120千円)
2021年度: 1,820千円 (直接経費: 1,400千円、間接経費: 420千円)
2020年度: 910千円 (直接経費: 700千円、間接経費: 210千円)
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| キーワード | fNIRS / bilingual advantage / expressive vocabulary / verbal fluency / NIRS / Bilingual advantage / English proficiency / Verbal fluency task / verbal fluency test / executive function / cognitive control |
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| 研究開始時の研究の概要 |
Until now, behavioral data on a bilingual advantage in executive function has not yet been clearly supported by neuroimaging. Proven existence could have profound implications for neurodegenerative disease treatment and/or provide justification for reform of second and foreign language education. Differential brain activation (or lack thereof) between subjects of differing English proficiency could help shed light on this contentious subject.
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| 研究実績の概要 |
During fiscal year 2023, to explore the effects of second language (L2) proficiency on frontal brain activity of L1-Japanese-speaking Kyushu University students during a verbal fluency task to determine the existence of a bilingual advantage in executive function, data was collected from an additional 16 subjects (for a total of 20 since the start of the experiment).
Raw data collected included the following: demographic data, handedness data, English vocabulary level as measured by the Pearson Expressive Vocabulary Test, and changes in oxygenated hemoglobin level in pre-frontal brain areas during a "FAS" test as measured by 16-channel functional near-infrared spectroscopy (fNIRS) device.
Raw data is currently being prepared for data analysis to determine if differences in L2 proficiency can be observed in frontal brain regions using neuroimaging.
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