タブレットのペン制御が担う作業記憶精度

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2020/05/01

タイトル(英語): Working Memory Accuracy Micro-controlled through a Tablet Pen

著者名: 瀧田　正寿（産業技術総合研究所（国立研究開発法人）／電気通信大学 脳・医工学研究センター），加藤　龍（電気通信大学 脳・医工学研究センター／横浜国立大学 工学研究院 システムの創生部門），横井　浩史（電気通信大学 脳・医工学研究センター／電気通信大学 知能機械工学専攻）

著者名(英語): Masatoshi Takita (National Institute of Advanced Industrial Science and Technology (AIST)/Center for Neuroscience and Medical Engineering, The University of Electro-Communications), Ryu Kato (Center for Neuroscience and Medical Engineering, The University of Electro-Communications/Division of Systems Research, Yokohama National University), Hiroshi Yokoi (Center for Neuroscience and Medical Engineering, The University of Electro-Communications/Department of Mechanical Engineering and Intelligent Systems, The University of Electro-Communications)

キーワード: 作業記憶精度，タブレット，ポインティング，加速度計，生理的振戦　　working memory accuracy，tablet，pointing，accelerometer，physiological tremor

要約(英語): In this study, visual working memory was assessed using nonverbal “accuracy,” in contrast to typical memory research, which is usually based on “right/wrong” answers. We analyzed the relationship between dynamic control of pen-use and pointing accuracy using a tablet liquid crystal device (LCD). Healthy participants held a pen equipped with a triaxial accelerometer in each hand. Using the dominant hand, they targeted a point at the center of a “diamond” formed by the intersection of two 4×1 cm rectangles tilted 45° to the left and right, respectively. The rectangles were quasi-randomly displayed at various locations on the LCD with time lags. The working memory accuracy was defined as the standard deviation of the distance between the absolute and surmised centers. The evident result indicated that the pen-dynamics (4-100 Hz) of the dominant hand started to increase for action readiness then decayed for the last 3 s during a 4-s interval (waiting period). Furthermore, the ability to sustain power for 100-200 Hz correlated with decrease of pointing deviation (i.e., increased working memory accuracy). We also discuss the relationship between our results and other memory theories, including those derived from rodent studies.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.140 No.5 （2020）

本誌掲載ページ: 502-507 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/140/5/140_502/_article/-char/ja/