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  1. 020 学位論文
  2. 生命科学研究科
  3. 20 生理科学専攻

Atypical brain activation in adults with ASD during gestural interaction

https://ir.soken.ac.jp/records/4092
https://ir.soken.ac.jp/records/4092
7da2a2d6-1194-4bc4-ad43-6f74a10dd576
名前 / ファイル ライセンス アクション
甲1612_要旨.pdf 要旨・審査要旨 (298.2 kB)
Item type 学位論文 / Thesis or Dissertation(1)
公開日 2013-11-26
タイトル
タイトル Atypical brain activation in adults with ASD during gestural interaction
タイトル
言語 en
タイトル Atypical brain activation in adults with ASD during gestural interaction
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_46ec
資源タイプ thesis
著者名 岡本, 悠子

× 岡本, 悠子

WEKO 2316

岡本, 悠子

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フリガナ オカモト, ユウコ

× オカモト, ユウコ

WEKO 2317

オカモト, ユウコ

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著者 OKAMOTO, Yuko

× OKAMOTO, Yuko

WEKO 2318

en OKAMOTO, Yuko

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学位授与機関
学位授与機関名 総合研究大学院大学
学位名
学位名 博士(理学)
学位記番号
内容記述タイプ Other
内容記述 総研大甲第1612号
研究科
値 生命科学研究科
専攻
値 20 生理科学専攻
学位授与年月日
学位授与年月日 2013-03-22
学位授与年度
2012
要旨
内容記述タイプ Other
内容記述 Individuals with Autism Spectrum Disorder (ASD) have trouble in gestural interaction such as automatic mimicry and perceiving being imitated by other. We hypothesized that these troubles are caused by impairment of automatic, spontaneous transition from perceptual to motor representation (inverse model) and vice versa (forward model). We conducted a functional MRI with 19 adults with high-functioning ASD and 22 normal adults, where the subjects execute and observed finger gestures. We manipulated the congruency and the order of executed and observed action. When the subjects executed incongruent action based on the visually presented other’s action, activation in the left insula of the ASD group was significantly less prominent than that of the normal group in Autism Quotient (AQ) dependent manner. Considering that the left insula is the part of the executive system and is related to the response inhibition, this may represent the reduced workload for inhibition of the automatic mimicry of visually presented action, because of the less prominent generation of inverse model for adults with high-functioning ASD. When the subjects executed action based on observed action, congruency effect was observed in the bilateral extrastriate body area (EBA) of both groups. By contrast, when subjects observed other’s action after execution of an action, congruency effect in the left EBA was specifically attenuated in the ASD group in AQ dependent manner. As there was no intentional imitation process, this attenuated congruency effect is attributed to less prominent automatic generation of the forward model in adults with high-functioning ASD. These findings suggest that adults with high-functioning ASD have abnormality in linkage between motor and perceptual action representation that are automatically and bi-directionally induced, which may be related to atypical behaviors of ASD during gestural interaction.
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