2023 Fiscal Year Final Research Report
Understanding the interpersonal functions of facial expressions in infants
| Project/Area Number |
19K23373
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Multi-year Fund |
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| Review Section |
0110:Psychology and related fields
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| Research Institution | Osaka University of Comprehensive Children Education |
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Principal Investigator |
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| Project Period (FY) |
2019-08-30 – 2024-03-31
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| Keywords | 表情理解 / 個人間機能 |
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| Outline of Final Research Achievements |
Among the interpersonal functions in which facial expressions affect others who see them, the functions of facial expressions to cause others to act (Study I) and the functions of facial expressions to elicit emotions in others (Study II) were addressed and experimentally explored in adults in order to collect comparative data for conducting studies in infants.
In Study I, gaze-based data and conscious ansers suggested that when the expressor expressed a happy facial expression, participants understood that the receiver's action was more appropriate to perform an approaching action than an avoiding action toward the expressor. In Study II, however, the gaze data did not yield results suggesting that participants understood that the receiver's facial expression would follow the expressor's facial expression.
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| Free Research Field |
発達心理学
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| Academic Significance and Societal Importance of the Research Achievements |
表情の個人間機能の理解においては、成人であっても知見が見当たらないことから、少なくとも表情が他者の行動を引き起こす機能について理解してることを示す結果が得られたことは意義があるといえる。また、乳児の研究でも用いることのできる視線データの有効性の範囲を示せたことも意義があるだろう。さらに、これまでの表情理解研究においてネガティブな表情の理解が強くみられたこととは異なり、ポジティブな表情で結果が得られたことが、表情表出を受けた他者がどのようにふるまうかという第三者を含めた理解を扱ったことによる新しい視点となる可能性があることも意義として挙げられる。
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