2022 Fiscal Year Final Research Report
Neurodevelopmental aspect on fluency disorders
| Project/Area Number |
20K20810
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| Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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| Allocation Type | Multi-year Fund |
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| Review Section |
Medium-sized Section 9:Education and related fields
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| Research Institution | University of Tsukuba |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
飯村 大智 川崎医療福祉大学, リハビリテーション学部, 助教 (40881842)
越智 景子 京都大学, 情報学研究科, 特定助教 (20623713)
城本 修 県立広島大学, 保健福祉学部(三原キャンパス), 教授 (00290544)
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| Project Period (FY) |
2020-07-30 – 2023-03-31
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| Keywords | 発話 / 言語 / 流暢性障害 / 吃音 / 早口言語症 |
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| Outline of Final Research Achievements |
The following conclusions were drawn from the results of a speech task and a WISC-IV intelligence test administered to children who stutter, children with developmental disabilities, children with coexisting stuttering and developmental disabilities, and children with none of the above.Only the oral reading task was correlated with the frequency of normal disfluency. It was suggested that working memory index may be involved in increasing the frequency of occurrence of normal disfluency. Children with coexisting stuttering and developmental disabilities had higher frequencies of normal disfluency in the memorized story replay task. The high frequency of normal disfluency was similar to that of cluttering, suggesting a similarity between the two groups. However,iIt was not confirmed that the children with cluttering were homogeneous with the stuttering + developmental disability group.
Translated with www.DeepL.com/Translator (free version)
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| Free Research Field |
音声言語障害学
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| Academic Significance and Societal Importance of the Research Achievements |
本研究ではWISC-Ⅳ知能検査と非流暢性症状の生起についての関連性を検討した結果、音読での非流暢性生起が言語理解指標やワーキングメモリ指標と相関することが明らかにされた。この結果から、流暢性障害が脳の局所的な障害に起因するのではなく、発達に関わる広範囲な神経回路の影響を受けて発症することが推測された。このことから、本研究は今後の吃音とクラタリングの神経心理学的な研究において、新たな側面の検討に着手し結論を得た点で今後の研究に寄与し、学術的な意義があると考える。
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