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2. Evaluation of a VR Language Learning System: Effect of Interactivity on Learner Oral Task Performance

Author

Tokutake, Hayato, York, James, Shibata, Koichi, and Nakayama, Hiroshi

Abstract

This study explored the effect of differing levels of interactivity in a VR language learning system on learner oral task performance. 30 participants were divided into 15 pairs which undertook two spot-the-difference tasks. One in a static-VR system, the other in an interactive-VR system which required them to move objects into the correct position in a 3D environment. Oral performance was measured along complexity, accuracy and fluency dimensions. Results suggested that the static-VR system pushed learners to produce more fluent and lexically complex output than the interactive-VR system. There was no significant difference in output in terms of accuracy. Reasons for these results are explored and implications for teachers provided. The paper concludes with recommendations for future research in this area.

Published
2021

3. Effect of SCMC on Foreign Language Anxiety and Learning Experience: A Comparison of Voice, Video, and VR-Based Oral Interaction

Author

York, James, Shibata, Koichi, Tokutake, Hayato, and Nakayama, Hiroshi

Abstract

Studies on computer-mediated communication often compare the affective affordances of different technologies with face-to-face communication. This study aimed to understand how three different computer-mediated communication modalities may affect EFL learners' foreign language anxiety (FLA). Using a counterbalanced 3 by 3 factorial design, 30 undergraduate Japanese university students participated in this study, completing a spot-the-difference task in three different oral synchronous computer-mediated communication modes: voice, video, and virtual reality (VR). Upon completing each task, participants responded to an FLA questionnaire and answered questions regarding their learning experiences. Finally, a post-experiment questionnaire asked participants to explicitly compare their experiences of learning within each modality. Results suggest that although all three modes were successful in reducing learner FLA, no statistically significant differences were found between mean scores. However, the results of the learner perceptions questionnaire suggested that VR was the easiest environment to communicate in, was the most fun, and the most effective environment for language learning. Participant responses to an open-ended question suggested that learner dispositions to technology as well as their affective characteristics may be responsible for differing opinions regarding the affordances of VR for language learning. The study concludes with a call for more research in the area of learner affect and technology use, including studies that more effectively utilize the technological affordances of VR, and also qualitatively assess which elements of VR may affect learner FLA and motivation.

Published
2021
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9. Appropriate Circadian-Circasemidian Coupling Protects Blood Pressure from Morning Surge and Promotes Human Resilience and Wellbeing

Author

Otsuka,Kuniaki, Murakami,Shougo, Okajima,Kiyotaka, Shibata,Koichi, Kubo,Yutaka, Gubin,Denis G, Beaty,Larry A, Cornelissen,Germaine, Otsuka,Kuniaki, Murakami,Shougo, Okajima,Kiyotaka, Shibata,Koichi, Kubo,Yutaka, Gubin,Denis G, Beaty,Larry A, and Cornelissen,Germaine

Abstract

Kuniaki Otsuka,1,2 Shougo Murakami,3 Kiyotaka Okajima,4 Koichi Shibata,1 Yutaka Kubo,5 Denis G Gubin,6– 8 Larry A Beaty,2 Germaine Cornelissen2 1Tokyo Women’s Medical University, Tokyo, Japan; 2Halberg Chronobiology Center, University of Minnesota, Minneapolis, MN, USA; 3Department of Cardiovascular Medicine, Soseikai General Hospital, Kyoto, Japan; 4Cardiovascular Internal Medicine, Higashi Omiya General Hospital, Saitama, Japan; 5Department of Medicine, Machida Keisen Hospital, Tokyo, Japan; 6Laboratory for Chronobiology and Chronomedicine, Research Institute of Biomedicine and Biomedical Technologies, Medical University, Tyumen, 625023, Russia; 7Department of Biology, Medical University, Tyumen, 625023, Russia; 8Tyumen Cardiology Research Center, Tomsk National Research Medical Center, Russian Academy of Science, Tomsk, RussiaCorrespondence: Germaine Cornelissen, Halberg Chronobiology Center, University of Minnesota, MMC8609, 420 Delaware Street SE, Minneapolis, MN, 55455, USA, Email corne001@umn.edu.an Kuniaki Otsuka, Executive Medical Center, Totsuka Royal Clinic, Tokyo Women’s Medical University, Related Medical Facility, Sinjuku City, Tokyo, Japan, Email frtotk99@ba2.so-net.ne.jpBackground: Blood pressure (BP) variability is involved in the appraisal of threat and safety, and can serve as a potential marker of psychological resilience against stress. The relationship between biological rhythms of BP and resilience was cross-sectionally assessed by 7-day/24-hour chronobiologic screening in a rural Japanese community (Tosa), with focus on the 12-hour component and the “circadian-circasemidian coupling” of systolic (S) BP.Subjects and Methods: Tosa residents (N = 239, 147 women, 23– 74 years), free of anti-hypertensive medication, completed 7-day/24-hour ambulatory BP monitoring. The circadian-circasemidian coupling was determined individually by computing the difference between the circadian phase and the circasemidian morning-phase of SBP. Particip

Published
2023

17. Effect of Standard vs Intensive Blood Pressure Control on the Risk of Recurrent Stroke A Randomized Clinical Trial and Meta-analysis

Author

Kitagawa Kazuo, Yamamoto Yasumasa, Arima Hisatomi, Maeda Toshiki, Sunami Norio, Kanzawa Takao, Eguchi Kazuo, Kamiyama Kenji, Minematsu Kazuo, Ueda Shinichiro, Rakugi Hiromi, Ohya Yusuke, Kohro Takahide, Yonemoto Koji, Okada Yasushi, Higaki Jitsuo, Tanahashi Norio, Kimura Genjiro, Umemura Satoshi, Matsumoto Masayasu, Shimamoto Kazuaki, Ito Sadayoshi, Saruta Takao, Shimada Kazuyuki, Kario Kazuomi, Saito Yoshihiko, Terayama Yasuo, Toyoda Kazunori, Okura Takafumi, Hoshino Haruhiko, Makino Hirofumi, Uchida Haruhito, Uchiyama Shinichiro, Etani Hideki, Kohriyama Tatsuo, Tomimoto Hidekazu, Yoshio Taku, Kobayashi , Shotai, Usami Hiroko, Iihoshi Satoshi, Mikami Takeshi, Mikuni Nobuhiro, Miyata Kei, Murakami Tomohiro, Endo Hideki, Fukui Takahito, Fumoto Kentaro, Hara Keiji, Honjo Kaori, Kinoshita Yusuke, Maeda Masana, Mikamoto Masaaki, Mori Daisuke, Murahashi Takeo, Nomura Ryota, Noro Shusaku, Ogino Tatsuya, Okuma Masahiro, Otake Yasuhumi, Shindo Koichiro, Sugio Hironori, Takada Hidekazu, Takahira Kazuki, Takeuchi Akiko, Watanabe Toshiichi, Yamaguchi Yohei, Abumiya Takeo, Houkin Kiyohiro, Matsumura Shigeki, Shinohe Rikiya, Kuroshima Kiyomi, Takizawa Katsumi, Yoshida Kazuto, Morimoto Hideo, Hasebe Naoyuki, Koyama Satoshi, Maruyama Junichi, Irie Shinsuke, Nakano Takahiro, Ogasawara Yukari, Ohkuma Hiroki, Shibanai Kazuo, Hikichi Kentaro, Kobayashi Shinya, Moroi Junta, Nakase Taizen, Okada Takeshi, Takano Daiki, Takenaka Shunsuke, Yoshioka Shotaro, Yanagisawa Toshiharu, Hirata Yutaka, Konno Shu, Sato Tomohiko, Ito Miiko, Kondo Rei, Mori Wataru, Saito Shinjiro, Kokubo Yasuaki, Kato Hideaki, Oyama Hideki, Matsuo Kaneyuki, Matsumoto Masahiro, Nakamura Mari, Koizumi Takayuki, Sato Hiroyuki, Shibata Yasushi, Hashimoto Masaaki, Kurita Hideharu, Matsumoto Eiji, Ishiguro Koji, Asakura Ken, Fujimaki Hiroya, Wakabayashi Kazuki, Akaji Kazunori, Horikoshi Tomo, Kano Tadashige, Katano Takehiro, Kimura Hiroaki, Mihara Ban, Suzuki Kentaro, Takayama Yohei, Ishii Akira, Momomura Sin-ichi, Sugawara Hitoshi, Yamashita Takeshi, Kaneko Uichi, Takahashi Toshie, Arai Toshinari, Tanaka Yoshihiro, Inokuma Shigehisa, Kato Yuji, Ishige Naoki, Muramatsu Kazuhiro, Nogawa Shigeru, Yoshizaki Takahito, Ohashi Takashi, Suda Sumio, Iguchi Yasuyuki, Mitsumura Hidetaka, Adachi Tomohide, Konoeda Fumie, Oki Koichi, Tanaka Ryota, Urabe Takao, Yamashiro Kazuo, Ito Akihiro, Nakatomi Hirofumi, Shojima Masaaki, Otsuka Kuniaki, Shibata Koichi, Abe Takato, Itoh Yoshiaki, Suzuki Norihiro, Toi Sono, Teramoto Tamio, Fukunaga Atsushi, Kujuro Yuki, Ohta Kouichi, Osada Takashi, Shimizu Katuyoshi, Kitagawa Yasuhisa, Tokuoka Kentaro, Omura Masao, Kikyo Hideyuki, Kamide Tomoya, Kitamura Yoshihisa, Miyashita Katsuyoshi, Mori Kentaro, Shima Hiroshi, Tamase Akira, Akutsu Tsugio, Nishiyama Kazutoshi, Takizawa Shunya, Uesugi Tsuyoshi, Ikeda Uichi, Koshikawa Megumi, Yamasaki Saeko, Inoue Atsushi, Matsumoto Yasuko, Yamaguchi Kazuyoshi, Hirose Genjirou, Kontani Satoshi, Takasawa Kazuya, Hirahara Katsumi, Kodama Makoto, Yagihara Nobue, Hata Takashi, Hori Makoto, Oda Rokuhei, Kubo Ayuka, Okuda Satoshi, Yamada Kentaro, Takeuchi Hiroki, Araki Yoshio, Ito Mizuki, Senda Joe, Wakabayashi Toshihiko, Ito Shinji, Mutoh Tatsuro, Kawase Yukinori, Ando Fumio, Okamoto Shinya, Shimada Takuya, Shindo Akihiro, Nishikawa Masakatsu, Niwa Atsushi, Sasaki Ryogen, Murata Hiroto, Yata Kenichiro, Matsuo Koushun, Yagi Hideo, Shiogai Toshiyuki, Nagakane Yoshinari, Fujinami Jun, Nakagawa Masanori, Ohara Ryo, Tomii Yasuhiro, Arakawa Yoshiki, Funaki Takeshi, Ihara Masafumi, Kitamura Akihiro, Maki Takakuni, Miyamoto Susumu, Nakaya Yoshifumi, Takahashi Ryosuke, Takenobu Yohei, Yoshida Kazumichi, Ino Tadashi, Murase Nagako, Ohotani Ryo, Kawashima Atsushi, Watanabe Akiko, Hayashi Yuko, Ohmichi Takuma, Yasuda Rei, Yoshioka Akira, Yuki Natsuko, Makino Masahiro, Yamaguchi Tatsuyuki, Matsuzaki Jyo, Niki Hitoshi, Shiraishi Shoichi, Yanagihara Takehiko, Yamada Keiichi, Hatate Jun, Miwa Kaori, Okazaki Shuhei, Arihiro Shoji, Doijiri Ryosuke, Higashida Kyoko, Kajimoto Katsufumi, Miyashita Kotaro, Nagatsuka Kazuyuki, Saito Kozue, Sugiura Yuri, Takizawa Hotake, Torii Takako, Yokota Chiaki, Kajimoto Yoshinaga, Kuroiwa Toshihiko, Fukunaga Ryuzo, Takahashi Tsutomu, Nakao Kazutami, Kajiyama Yuta, Kimura Yasuyoshi, Naka Takashi, Otomune Hironori, Tanahashi Takao, Uehara Takuya, Hashimoto Hiroyuki, Uematsu Toshihiko, Kataoka Kazuo, Okayama Satoshi, Somekawa Satoshi, Yamada Shuichi, Sasaki Rie, Yamano Shigeru, Nakao Naoyuki, Obayashi Shinji, Hamaguchi Hirotoshi, Toda Tatsushi, Washida Kazuo, Hoshi Taku, Kono Tomoyuki, Sekiya Hiroaki, Sugo Norifumi, Todo Kenichi, Togo Masaya, Yamagami Hiroshi, Yamamoto Shiro, Shiro Yoshihiko, Takaoka Toshio, Abe Satoshi, Hamada Chizuko, Ishihara Masaki, Kadota Katuhiko, Nakagawa Tomonori, Oguro Hiroaki, Takayoshi Hiroyuki, Yamaguchi Takuya, Yamaguchi , Shuuhei, Mizuhara Ryo, Okada Kazunori, Yamagata Shingo, Sasaki Akira, Abe Koji, Deguchi Kentaro, Deguchi Shoko, Nakano Yumiko, Hirai Satoshi, Uno Masaaki, Yokosuka Kimihiko, Manabe Yasuhiro, Ito Hijiri, Aoki Shiro, Hosomi Naohisa, Kihara Yasuki, Kisaka Tomohiko, Maruyama Hirofumi, Araki Hayato, Ogami Ryo, Torii Tsuyoshi, Yokoyama Noboru, Yokoyama Takakazu, Kataoka Satoshi, Kitamura Takeshi, Kanda Takashi, Maeda Toshihiko, Shimizu Fumitaka, Seki Kozaburo, Bando Yuko, Ohara Masaki, Yamasaki Masahiro, Masahira Noritaka, Ueba Tetsuya, Ueba Yusuke, Fujimoto Yuichi, Haro Keiko, Ogata Hidenori, Shida Norihiko, Matsumoto Takeshi, Okamoto Kensho, Kawamoto Ryuichi, Arakawa Shuji, Shii Hirofumi, Kanai Hidetoshi, Fujimoto Shigeru, Jinnouchi Juro, Matsuki Takayuki, Osaki Masato, Arakawa Kimika, Ibaraki Ai, Kiyohara Kanako, Ohta Yuko, Oniki Hideyuki, Sakaki Minako, Tominaga Mitsuhiro, Tsuchihashi Takuya, Higashi Saho, Ishikawa Hiromi, Ishitsuka Koji, Kitayama Jiro, Nakane Hiroshi, Yoshimura Takeo, Kakino Shunsuke, Kaneko Yoshirou, Inoue Junnosuke, Maruyama Yoshikazu, Isa Katsunori, Sakima Hirokuni, and Nakada Seigo

Subjects
medicine.medical_specialty, education.field_of_study, business.industry, Standard treatment, Population, medicine.disease, law.invention, 03 medical and health sciences, 0302 clinical medicine, Blood pressure, Randomized controlled trial, law, Relative risk, Internal medicine, Multicenter trial, Number needed to treat, Medicine, 030212 general & internal medicine, Neurology (clinical), business, education, Stroke, 030217 neurology & neurosurgery, Original Investigation
Abstract

Importance The Systolic Blood Pressure Intervention Trial (SPRINT) demonstrated that a systolic blood pressure (BP) target less than 120 mm Hg was superior to less than 140 mm Hg for preventing vascular events. This trial excluded patients with prior stroke; therefore, the ideal BP target for secondary stroke prevention remains unknown. Objective To assess whether intensive BP control would achieve fewer recurrent strokes vs standard BP control. Design, Setting, and Participants Randomized clinical trial (RCT) of standard vs intensive BP control in an intent-to-treat population of patients who had a history of stroke. Patients were enrolled between October 20, 2010, and December 7, 2016. For an updated meta-analysis, PubMed and the Cochrane Central Library database were searched through September 30, 2018, using the Medical Subject Headings and relevant search terms forcerebrovascular diseaseand forintensive BP lowering. This was a multicenter trial that included 140 hospitals in Japan; 1514 patients who had a history of stroke within the previous 3 years were approached, but 234 refused to give informed consent. Interventions In total, 1280 patients were randomized 1:1 to BP control to less than 140/90 mm Hg (standard treatment) (n = 640) or to less than 120/80 mm Hg (intensive treatment) (n = 640). However, 17 patients never received intervention; therefore, 1263 patients assigned to standard treatment (n = 630) or intensive treatment (n = 633) were analyzed. Main Outcomes and Measures The primary outcome was stroke recurrence. Results The trial was stopped early. Among 1263 analyzed patients (mean [SD] age, 67.2 [8.8] years; 69.4% male), 1257 of 1263 (99.5%) completed a mean (SD) of 3.9 (1.5) years of follow-up. The mean BP at baseline was 145.4/83.6 mm Hg. Throughout the overall follow-up period, the mean BP was 133.2/77.7 (95% CI, 132.5-133.8/77.1-78.4) mm Hg in the standard group and 126.7/77.4 (95% CI, 125.9-127.2/73.8-75.0) mm Hg in the intensive group. Ninety-one first recurrent strokes occurred. Nonsignificant rate reductions were seen for recurrent stroke in the intensive group compared with the standard group (hazard ratio [HR], 0.73; 95% CI, 0.49-1.11;P = .15). When this finding was pooled in 3 previous relevant RCTs in a meta-analysis, the risk ratio favored intensive BP control (relative risk, 0.78; 95% CI, 0.64-0.96;P = .02; absolute risk difference, −1.5%; 95% CI, −2.6% to −0.4%; number needed to treat, 67; 95% CI, 39-250). Conclusions and Relevance Intensive BP lowering tended to reduce stroke recurrence. The updated meta-analysis supports a target BP less than 130/80 mm Hg in secondary stroke prevention. Trial Registration ClinicalTrials.gov identifier:NCT01198496

Published
2019

27. Circadian challenge of astronauts’ unconscious mind adapting to microgravity in space, estimated by heart rate variability

Author

Cornelissen, Germaine, Otsuka, Kuniaki, Kubo, Yutaka, Shibata, Koichi, Hayashi, Mitsutoshi, Mizuno, Koh, Ohshima, Hiroshi, Furukawa, Satoshi, and Mukai, Chiaki

Subjects
Male, 0301 basic medicine, Time Factors, Evening, Consciousness, Circadian clock, lcsh:Medicine, Article, 03 medical and health sciences, 0302 clinical medicine, Neuroimaging, Heart Rate, Adaptation, Psychological, Humans, Heart rate variability, Circadian rhythm, lcsh:Science, Default mode network, Morning, Adaptive behavior, Multidisciplinary, Weightlessness, lcsh:R, Brain, Middle Aged, Space Flight, Circadian Rhythm, 030104 developmental biology, Astronauts, lcsh:Q, Female, Psychology, Neuroscience, 030217 neurology & neurosurgery
Abstract

形態: カラー図版あり, Physical characteristics: Original contains color illustrations, Accepted: 2018-06-28, 資料番号: PA1910051000

Published
2018

28. Clinical practice guideline for chronic headache 2013

Author

Araki, Nobuo, primary, Takeshima, Takao, additional, Ando, Naoki, additional, Iizuka, Takahiro, additional, Igarashi, Hisaka, additional, Ikeda, Yukio, additional, Ito, Yasuo, additional, Inagaki, Mieko, additional, Imamura, Keiko, additional, Ohkuma, Hirohisa, additional, Ogawa, Karin, additional, Kato, Yuji, additional, Kikui, Shoji, additional, Kitamura, Takayuki, additional, Kudo, Masako, additional, Kuwabara, Kentaro, additional, Gono, Yukari, additional, Kowa, Hisanori, additional, Saigoh, Kazumasa, additional, Sato, Shinya, additional, Shibata, Koichi, additional, Shibata, Mamoru, additional, Shimazu, Tomokazu, additional, Shimizu, Toshihiko, additional, Suzuki, Michiyasu, additional, Takahashi, Yuji, additional, Takekawa, Hidehiro, additional, Doi, Hikaru, additional, Nagata, Eiichiro, additional, Nakano, Toshiya, additional, Hashizume, Masahiro, additional, Hashimoto, Shiori, additional, Hamada, Junichi, additional, Hirata, Koichi, additional, Fujiki, Naoto, additional, Fujita, Mitsue, additional, Yamane, Kiyomi, additional, Wajima, Koichi, additional, and Watanabe, Yuka, additional

Published
2019
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