| Project/Area Number |
20K20152
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 90030:Cognitive science-related
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| Research Institution | Kyushu University |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2024-03-31
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| Project Status |
Completed (Fiscal Year 2023)
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| Budget Amount *help |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2022: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Keywords | fNIRS / bilingual advantage / EVT / FAS test / L2 acquisition / expressive vocabulary / verbal fluency / NIRS / Bilingual advantage / English proficiency / Verbal fluency task / verbal fluency test / executive function / cognitive control |
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| Outline of Research at the Start |
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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| Outline of Final Research Achievements |
In the present research period, I have accomplished the following: 1) Created a liaison between our Faculty of Languages and Cultures and Kyushu University Hospital and established a precedent/template in which the latter provides IRB certification for "clinical research" in our department, 2) Purchased a portable functional near-infrared spectroscopy (fNIRS) device, now available here on our Ito Campus for future research in the PI's laboratory as well as in collaborations with other researchers interested in fields such as neurolinguistics, 3) Established a reproducible, reliable protocol for collecting fNIRS data in healthy Japanese subjects in a non-clinical setting such as on our campus, 4) Collected fNIRS and behavioral data in 20 subjects to corroborate the controversial bilingual advantage hypothesis by correlating L2 (English) proficiency with changes in prefrontal oxygenated hemoglobin (data analysis pending), 5) Published three research articles in related fields
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| Academic Significance and Societal Importance of the Research Achievements |
- I can now provide other KU researchers in non-technical fields guidance in doing clinical research on our campus.
- The gathered data may provide insight into the mechanisms of L2 acquisition.
- I have established inter-departmental cooperation with KU Hospital for future related research.
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