著者

﨑下 雅仁 小川 ちひろ 土屋 賢治 岩渕 俊樹 岸本 泰士郎 狩野 芳伸

出版者

一般社団法人 人工知能学会

雑誌

人工知能学会論文誌 (ISSN:13460714)

巻号頁・発行日

vol.35, no.3, pp.B-J45_1-11, 2020-05-01 (Released:2020-05-01)

参考文献数

28

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In recent years, population with autism spectrum disorder (ASD) are growing explosively, and diagnosis of ASD is difficult due to difference of interviewers and environments, etc. We show relations between utterance features and ASD severity scores, which were manually given by a clinical psychologist. These scores are of the Autism Diagnostic Observation Schedule (ADOS), which is one of the standard metrics for symptom evaluation for subjects who are suspected as ASD. We built our original corpus where we transcribed voice records of our ADOS evaluation experiment movies. Our corpus is the world largest as speech/dialog of ASD subjects, and there has been no such ADOS corpus available in Japanese language as far as we know. We investigated relationships between ADOS scores (severity) and utterance features we defined. Our system automatically estimated their scores using support vector regression (SVR). Our average estimation errors were around error rates that human ADOS experts are required not to exceed. Because our detailed analysis for each part of the ADOS test (“puzzle toy assembly + story telling” part and the “depiction of a picture” part) shows different error rates, effectiveness of our features would depend on the contents of the records. By comparing an ADOS score prediction result of adults and adults with that of children, we showed common features of ADOS scores between children and adults. Our entire results suggest a new automatic way to assist humans’ diagnosis, which could help supporting language rehabilitation for patients with ASD in future.

著者

伊藤 和之 加藤 麦 中村 仁洋 池田 和久 幕内 充 水落 智美 岩渕 俊樹

出版者

国立障害者リハビリテーションセンター(研究所)

雑誌

基盤研究(C)

巻号頁・発行日

2014-04-01

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重度の中途視覚障害者の手書き行動が学習に影響を与えるかを検証するため,新規外国語単語学習課題を手書き有り無しの2条件で行う行動実験及びMRI撮像を行った.その結果,聴くだけの学習は短期記憶で,手書きとの併用は長期記憶で有効との示唆を得た.また,視覚障害者群で,両側の運動野を含む前頭頭頂葉から後頭葉に亘る広い領域で,晴眼者に比して強い神経活動が見られた.特に,左前楔状回を中心とする視覚領域では,手書き条件で,非手書き条件より強い神経活動が観察された.重度の中途視覚障害者の手書き行動は,長期記憶に有効であり,視覚心像に関わる視覚連合野を中心とする神経活動を介して学習促進が起こることが示された.