Updated on 2024/04/01

写真a

 
Hayasaka Yoshiaki
 
Affiliation
Faculty of Medicine, Center for Medical Education, Assistant Professor
Title
Assistant Professor
External link

Degree

  • 博士（ソフトウェア情報学） ( 岩手県立大学 )

Research Interests

  • 情報教育

  • 医学教育

  • Institutional Research

  • ヒューマンインタフェース

  • 教育工学

  • AI

  • インストラクショナルデザイン

  • Problem Based Learning

  • 学修支援システム

Research Areas

  • Humanities & Social Sciences / Educational technology  / 医学教育

Research History

Professional Memberships

  • THE JAPAN SOCIETY FOR MEDICAL EDUCATION

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  • THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS

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  • THE INSTITUTE OF ELECTRICAL ENGINEERS OF JAPAN

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  • THE MEDICAL ASSOCIATION OF NIPPON MEDICAL SCHOOL

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  • Japan Association for Simulation-based Education in Healthcare Professionals

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Papers

  • Tumor size discrepancy between endoscopic and pathological evaluations in colorectal endoscopic submucosal dissection Onda T, Goto O, Otsuka T, Hayasaka Y, Nakagome S, Habu T, Ishikawa Y, Kirita K, Koizumi E, Noda H, Higuchi K, Omori J, Akimoto N, Iwakiri K. Tumor size discrepancy between endoscopic and pathological evaluations in colorectal endoscopic submucosal dissection. World J Gastrointest Endosc 2024; 16(3): 136-147 [DOI: 10.4253/wjge.v16.i3.136] Reviewed

    2024.3

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  • Over 90% of Childhood BCG Vaccine-Induced Keloids in Japan Occur in Women. Reviewed International journal

    Chikage Noishiki, Yoshiaki Hayasaka, Ryu Yoshida, Rei Ogawa

    Dermatology and therapy   1 - 11   2023.3

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    INTRODUCTION: Keloids are a fibroproliferative, multifactorial, cutaneous disorder whose pathophysiology is not completely understood. Various factors such as high blood pressure, pregnancy, female gender, mechanical tension of local sites, and prolonged wound healing are known to worsen keloids. Childhood-onset keloids are keloids that form before 10 years of age, before various factors in adulthood come into play, and thus studying childhood-onset keloids may provide additional insight into the underlying mechanisms that lead to keloid formation. METHODS: Retrospective chart review was performed on all patients with childhood-onset keloids who were evaluated at our plastic surgery clinic (one of the largest keloid referral centers in Japan) over a 1-year period. RESULTS: Of the 1443 patients with diagnosis of keloids, 131 patients had childhood-onset keloids. Of these, 106 patients (80.9%) were female, 38.9% of patients had family history of keloids, and 48.9% of patients had allergies or allergy-related conditions (asthma, atopic dermatitis, or allergic rhinitis). Vaccination (47.5%) and chickenpox (19.9%) were the most common triggers. Of vaccinations, BCG was the most common trigger. The majority of keloids from BCG were in female patients (92.9%). The most common location was the chest in male patients (30.0%) and the arm in female patients (41.1%). CONCLUSION: To our knowledge, this is the largest report in the literature on childhood-onset keloids. There was overall female predominance in childhood-onset keloids, and even more significant female predominance in BCG-induced keloids.

    DOI： 10.1007/s13555-023-00916-0

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  • 未来型医学教育とDX

    藤倉輝道, 早坂明哲

    日本医科大学医学会雑誌   18 ( 2 )   2022

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  • 外科系医師のワーク・ライフバランスの現状と医学教育・研修における可能性について Reviewed

    海原 純子, 錦谷 まりこ, 早坂 明哲, 藤倉 輝道, 前田 美穂, 塚田 弥生[哲翁]

    日本鼻科学会会誌   59 ( 4 )   325 - 334   2020.12

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    Language：Japanese   Publisher：(一社)日本鼻科学会  

    外科系医師を中心に継続的な就労の要因としてのワーク・ライフバランスを理解し,必要な支援を考えることが本研究の目的である。大学の同窓会や地域の医師会に呼びかけ,現役の医師に対してワーク・ライフバランスとともに,職業環境,家事負担,生活や仕事への満足度,健康状態等に関する調査を行った。また,医学教育による意識の変化を測るため,医学生に対し2年時と卒業前の6年時におけるワーク・ライフバランスの価値について質問した。女性医師は男性医師に比し家事育児による負担感からワーク・ライフコンフリクトの生じる可能性が示された。特に外科系医師は,そうでない医師に比べて時間的な問題で仕事由来のコンフリクトが大きいことが示唆された。医学生のワーク・ライフバランスの重要性に関する意見は,女子医学生のほうが重要と考えるものが多かったが,卒前の6年時の調査結果で男女間の差は小さくなった。家事育児の性別役割分担への考えは,生育家庭から影響を受けることが示唆され,労働時間など職場環境の改善のほか,大学の医学教育の充実も,医師などの専門職の就労継続に効果のある可能性が示唆された。(著者抄録)

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    Other Link： https://search-tp.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2020&ichushi_jid=J01675&link_issn=&doc_id=20210112380006&doc_link_id=10.7248%2Fjjrhi.59.325&url=https%3A%2F%2Fdoi.org%2F10.7248%2Fjjrhi.59.325&type=J-STAGE&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00007_3.gif

  • Sex Differences in Keloidogenesis: An Analysis of 1659 Keloid Patients in Japan. Reviewed International journal

    Noishiki C, Hayasaka Y, Ogawa R

    Dermatology and therapy   9 ( 4 )   747 - 754   2019.10

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    Language：English   Publishing type：Research paper (scientific journal)  

    INTRODUCTION: Keloids are a cutaneous fibroproliferative disorder. Despite the fact that keloids are relatively common lesions, the statistics of patient with keloids especially sex difference remain unknown. To better understand it, we conducted an extensive cross-sectional analysis of a large cohort of patients with keloids (n = 1659). The study showed for the first time that female sex may be an inherent keloid risk factor. METHODS: This cross-sectional study of 1659 consecutive patients with keloids who attended a plastic surgery outpatient clinic in Japan in 2014 analyzed age at keloid onset, age at the first medical examination for keloid, and the influence of sex on these variables. RESULTS: In both male and female patients, the keloids were most likely to start in puberty and there was no significant difference in the mode value for age of onset (16 vs. 20 years). Though female patients were twice as prevalent as male patients at nearly all onset ages, female patients predominated over male patients with a gender ratio of 2.7:1 in cases of onset before the age of 15 years. Moreover male and female patients did not differ in terms of the mean ± SD duration between keloid onset and the first medical examination. This finding shows that female patients do not get their keloids examined earlier than male patients. These observations together suggest that female sex may promote early keloid development due to physiological, not social, reasons. CONCLUSION: This is the first report to suggest that female sex may drive keloidogenesis because of physiological reasons. Individuals were most likely to seek a medical examination almost 10 years after onset, regardless of sex. These findings provide new insight into the importance of sex in the development and progression of keloids. Future studies should address the influence of sex hormones on the keloid.

    DOI： 10.1007/s13555-019-00327-0

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  • Developing maxillofacial moulage for simulated patients Reviewed

    上原任, 井上千鹿子, 早坂明哲, 藤倉輝道, 山崎晴美

    日本シミュレーション医療教育学会雑誌   6   104‐110   2018.9

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    Language：Japanese  

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  • How do the first year students find the way of learning medicine in Japan? Reviewed

    Terumichi Fujikura, Masami Kashimura, Yoshiaki Hayasaka, Chikako Inoue, Toshiyuki Takeshita

    AMEE MedEdPublish   2018.6

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.15694/mep.2018.0000125.1

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  • Expectations for the Next Generation of Simulated Patients Born from Thoughtful Anticipation of Artificial Intelligence-Equipped Robot. Reviewed

    Yoshiaki Hayasaka, Terumichi Fujikura, Masami Kashimura

    Journal of Nippon Medical School = Nippon Ika Daigaku zasshi   85 ( 6 )   347 - 349   2018

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    It is predicted that in the near future robot simulated patients (SPs) will come into use. Through the impressions of five SPs about robot SPs, we explored their vision of the future of medical education as an indicator of what ordinary citizens think. The opinions of SPs were collected using a semi-structured focus group interview, after which the perspectives provided were explored using a qualitative research method called Steps for Coding and Theorization (SCAT). Although SPs accepted the introduction of robot SPs, they regard them as potential substitutes. The use of robot SPs raised concerns about the level of response to human diversity and the level of emotional intelligence. The problem of how much diversity among patients and doctors is acceptable in the field of education was identified. On the part of citizens, there is not much expectation that artificial intelligence (AI) will lead to sophisticated machines capable of human conversation. However, looking ahead to the AI era, real SPs anticipate that, along with the evolution of AI, the next generation of SPs will have thought deeply about their role within a program employing both humans and robots.

    DOI： 10.1272/jnms.JNMS.2018_85-57

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  • A Freshman Orientation Program to Provide an Overview of the Medical Learning Roadmap Reviewed

    Terumichi Fujikura, Takehiro Nemoto, Kazue Takayanagi, Masami Kashimura, Yoshiaki Hayasaka, Kazuo Shimizu

    JOURNAL OF NIPPON MEDICAL SCHOOL   81 ( 6 )   378 - 383   2014.12

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：MEDICAL ASSOC NIPPON MEDICAL SCH  

    International accreditation of medical education was introduced in Japan in 2013 and is planning to be applied in late 2014 or 2015. Students will need to cope with the resulting changes and to recognize by what route they will learn medicine. Therefore, a freshman orientation course, which was based on problem-based learning (PBL) and had been held for first-year students, was modified as an awareness reform program in which students would learn "how to learn medicine." We investigated whether this program has led to useful changes in students' recognition of the way of learning in medical school and their directions as learners. The program was held for 114 first-year medical school students in 2013 and consisted of PBL tutorials, large-classroom lectures, simulation learning using role-play with simulated patients, and team-based learning (TBL), presented in this order. Learning modules that is made with an integration of the clinical sciences with the basic biomedical and the behavioral and social sciences were provided. A nonanonymous questionnaire survey asking "what learning methods are effective for you?" was conducted before and after completion of the course. Furthermore, group answers obtained in TBL were investigated. The score for the question "To what extent can you imagine your route of learning during your 6 years?" significantly increased from 3.1 +/- 0.99 (mean +/- SD) before the course to 3.5 +/- 0.88 (p<0.01) after the course. The score for the question "To what extent is the small-group learning, such as PBL, useful for you?" significantly increased from 3.9 +/- 0.73 to 4.2 +/- 0.71 (p<0.05). Group responses in TBL sessions indicated that students desired classes that presented tasks and regarded "emphasis on reflection" and "observation of senior physicians as role models" as the most important methods for learning interview skills. We believe students should acquire active learning attitudes as adults early in their 6 years of medical school. The level of understanding of "how to learn as adults" was 3.7 and indicated a moderate result. This course employed many educational strategies, and we believe it helped students understand what they learn and how to learn during their 6 years of medical and to get an overview of the learning roadmap.

    DOI： 10.1272/jnms.81.378

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  • A conceptual design toward a computer controlled adoptive leg prosthesis for disabled people - A fundamental study using an animal experimental model

    Fumitaka Aki, Takuya Kenmoku, Tatsuhiro Kimura, Yoshiaki Hayasaka, Takashi Itoh, Naoaki Kanai, Hiroshi Ohshima, Katsuro Okamoto, Hiroyuki Tadokoro, Kiyoyuki Yamazaki

    Proceedings of the IADIS International Conference Interfaces and Human Computer Interaction 2012, IHCI 2012, Proceedings of the IADIS International Conference Game and Entertainment Technologies 2012   322 - 324   2012.12

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    As a fundamental study for the development of adaptive neurological limbs prosthesis using a computer controlled human machine interactive system, a neuro-physiological experiment was carried out using rats. The rats were surgically implanted with electrodes in the motor cortex, spinal cord and peripheral nerves. Neuro-electrical signals were recorded in voluntary and involuntary movements of the legs. Obtained data under two sets of conditions were compared and analyzed. Using our experimental model, neurophysiological characteristics of motor generation were revealed. Based upon these results, conceptual design of a new computer controlled prosthesis for disabled was discussed. © 2012 IADIS.

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  • A proposal for a new vep based brain computer interface for disabled people

    Tatsuhiro Kimura, Yuri Kumagai, Yoshiaki Hayasaka, Hiroshi Ohshima, Naoaki Kanai, Takashi Itoh, Hiroyuki Tadokoro, Katsuro Okamoto, Kiyoyuki Yamazaki

    Proceedings of the IADIS International Conference Interfaces and Human Computer Interaction 2012, IHCI 2012, Proceedings of the IADIS International Conference Game and Entertainment Technologies 2012   319 - 321   2012.12

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    The purpose of this study is to investigate the characteristics of Visual Evoked brain Potentials (VEP) for application to a new Brain - Computer Interface (BCI) for disabled people with verbal communication disorders such as Amyotrophic Lateral Sclerosis (ALS). In this study, an experiment using VEP recordings was carried out in healthy adult subjects. As a stimuli for the VEP, squared figures were displayed on the LCD of a personal computer. Two experimental conditions that were presented in (1) central visual field and (2) peripheral visual field were used. As a result, two different VEP waveforms were obtained between two stimulus conditions. From a comparison of the VEP waveforms, subjective stimulus position in his/her visual field could be discriminated objectively. Utilizing this phenomenon, VEP based BCI for binary decisions can be constructed. Concerns about the feasibility of this method as a BCI were also discussed. © 2012 IADIS.

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  • ラット24時間行動観察システムを用いた睡眠導入剤が脳波に及ぼす影響について

    矢崎 幸児, 高田 俊佑, 見目 拓也, 安藝 史崇, 木村 達洋, 早坂 明哲, 伊藤 高司, 岡本 克郎, 山崎 清之, 田所 裕之

    生体医工学   50 ( 4 )   389 - 389   2012.8

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    Language：Japanese   Publisher：(公社)日本生体医工学会  

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  • ラット24時間行動観察システムを用いたサーカディアンリズムの研究

    高田 俊佑, 矢崎 幸児, 見目 拓也, 安藝 史崇, 木村 達洋, 岡本 克郎, 早坂 明哲, 伊藤 高司, 山崎 清之, 田所 裕之

    生体医工学   50 ( 4 )   388 - 388   2012.8

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    Language：Japanese   Publisher：(公社)日本生体医工学会  

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  • ラット脳波の24時間計測システムの構築

    宮本 泰介, 鈴木 大輔, 高田 峻佑, 矢崎 幸児, 山崎 清之, 岡本 克郎, 木村 達洋, 伊藤 高司, 早坂 明哲, 田所 裕之

    生体医工学   49 ( 5 )   750 - 750   2011.10

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  • イソフルランの気化濃度変化によるラットのABR波形の変化

    鈴木 大輔, 宮本 泰介, 高田 俊介, 矢崎 幸児, 山崎 清之, 岡本 克郎, 木村 達洋, 伊藤 高司, 早坂 明哲, 田所 裕之

    生体医工学   49 ( 5 )   750 - 750   2011.10

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  • ラットの行動パターンと脳波の関連性

    高田 峻佑, 宮本 泰介, 鈴木 大輔, 矢崎 幸児, 木村 達洋, 早坂 明哲, 山崎 清之, 伊藤 高司, 岡本 克郎, 田所 裕之

    生体医工学   49 ( 5 )   750 - 750   2011.10

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  • 慢性埋め込み電極によるラット用ABR計測システムの開発

    大塚 光明, 山崎 清之, 岡本 克郎, 木村 達洋, 伊藤 高司, 早坂 明哲, 田所 裕之

    生体医工学   48 ( 3 )   330 - 330   2010.6

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    Language：Japanese   Publisher：(公社)日本生体医工学会  

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  • LATENCY PROLONGATION OF ABRs AS RECOVERY FROM ANESTHESIA IN RATS Reviewed

    Tatsuhiro Kimura, Yoshihiro Serizawa, Yoshiaki Hayasaka, Yuusuke Kato, Syuuto Morii, Yasushi Tominaga, Kosei Ohira, Rika Ozama, Haruna Suzuki, Takashi Itoh, Hiroshi Oshima, Kiyoyuki Yamazaki, Katsuro Okamoto, Hiroyuki Tadokoro

    JOURNAL OF PHYSIOLOGICAL SCIENCES   59   380 - 380   2009

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    Language：English   Publisher：SPRINGER TOKYO  

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  • A study on eeg during figure stroop task performance

    TAKEHARA Naoki, HASEGAWA Hirohisa, TORIUMI Yusuke, KIMURA Tatsuhiro, OKAMOTO Katsuro, YAMAZAKI Kiyoyuki, HAYASAKA Yoshiaki, ITO Takashi

    Journal of Advanced Science   19 ( 3 )   47 - 50   2008.2

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    Language：Japanese   Publisher：Society of Advanced Science  

    In order to estimate the mental workload, electroencephalogram (EEG) was measured during the Figure Stroop Task performance from ten healthy adult voluntary participants. In the experiment, two kind of visual stimuli were prepared: congruent and incongruent stimuli (figure and number of the figure was congruent or incongruent). Participants were asked to answer the number of displayed figures by pressing designated key. In the task, two different instructions to the participants were used: (1) respond as soon as possible, and (2) respond accurately. Integrated theta component of the EEG were compared between under condition of (1) and that of (2). Relative power percentage of theta component in condition (2) was larger than that in (1). The result suggests that the theta component was related with subjective difficulty of the task.

    DOI： 10.2978/jsas.19.47

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  • Effects of habitual music listening with a mobile music player on auditory function

    Zen Nen, Ie Mei, Serizawa Yoshikhiro, Otuka Mitsuaki, Kimura Tatsuhiro, Itou Takashi, Hayasaka Yoshiaki, Tadokoro Hiroyuki, Yamazaki Kiyoyuki

    Journal of Life Support Technology   20   123 - 123   2008

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    Publisher：The Society of Life Support Engineering  

    DOI： 10.5136/lifesupport.20.Supplement_123

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  • :The assessment of sleep stage utilizing body pressure fluctuation

    Noh Takaaki, Kimura Tatsuhiro, Hayasaka Yoshiaki, Serizawa Yoshihiro, Izumi Shuichi, Sasaki Toshiaki, Yamazaki Kiyoyuki

    Journal of Life Support Technology   20   176 - 176   2008

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    Language：Japanese   Publisher：The Society of Life Support Engineering  

    DOI： 10.5136/lifesupport.20.Supplement_176

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  • A study on effects of waiting period in software operation on the operator's psychophysiological state Reviewed

    Yoshiaki Hayasaka, Tatsuhiro Kimura, Norihisa Segawa, Masatoshi Miyazaki, Kiyoyuki Yamazaki, Yuko Murayama

    IEEJ Transactions on Electronics, Information and Systems   127 ( 10 )   40 - 1779   2007

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Institute of Electrical Engineers of Japan  

    The authors have been studying psychophysiological workload of human interface (HI) with physiological measurements and analysis. In this study, we investigated a kind of mental workload produced by user's unexpected waiting period from the request input to the termination of data processing during personal computer (PC) operation. As the experimental setting of HI, we used interactive software containing easy questions with unexpected time interval between each question. The effects of progress indicator (PI) indicating during waiting period on psychophysiological status of users were analyzed by using respiration, finger plethysmogram (PTG), heart rate (HR) and electroencephalogram (EEG) measurements. Results showed that the theta wave component of the EEG increased in the non-PI condition, even though autonomic nervous system parameters showed no significant change. Negative correlation between preference score for HI and integrated theta component percentage was observed only in non-PI condition. It is supposed that the PI was controlling theta activity coused by waiting stress in experimental condition. Utilizing physiological indices for HI assessment, this experimental method could be available to waiting stress estimation.

    DOI： 10.1541/ieejeiss.127.1770

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  • The proposal of the digital plethysmograph using a sensor network Reviewed

    Norihisa Segawa, Kiyoyuki Yamazaki, Yoshiaki Hayasaka, Jun Sawamoto

    INSS 07: PROCEEDINGS OF THE FOURTH INTERNATIONAL CONFERENCE ON NETWORKED SENSING SYSTEMS   311 - +   2007

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    Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：IEEE  

    We develop a new digital plethysmograph using a sensor network. We can utilize autonomic indices for instance heart rate and heart rate variability from the plethysmogram recording. It makes possible to evaluate user's physiological state easily and on real time.

    DOI： 10.1109/INSS.2007.4297453

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  • A Proposal on an Evaluation Method towards the Development of a Human Interface with Less Visual Fatigue

    木村達洋, 早坂明哲, 瀬川典久, 山崎清之, 村山優子, 宮崎正俊

    情報処理学会論文誌   44 ( 11 )   2587 - 2597   2003.11

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    Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：Information Processing Society of Japan (IPSJ)  

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  • A Proposal on an Evaluation Method towards the Development of a Human Interface with Less Visual Fatigue Reviewed

    KIMURA TATSUHIRO, HAYASAKA YOSHIAKI, SEGAWA NORIHISA, YAMAZAKI KIYOYUKI, MURAYAMA YUKO, MIYAZAKI MASATOSHI

    Transactions of Information Processing Society of Japan   44 ( 11 )   2587 - 2597   2003.11

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    Language：Japanese   Publisher：一般社団法人情報処理学会  

    In order to obtain a guideline for designing low-workload Human Interface (HI). We investigated assessment of visual fatigue induced by performing an interactive task as a model of HI software on personal computers utilizing measurement of Event Related Potentials (ERP) and accommodation. The ERP were measured in this study before and after a visual target detection task in healthy adult participants to assess visual fatigue of the central nervous system. As an index of accommodation, the ophthalmic near point was also measured using an accomodometer. As the experimental task, participants were instructed to click designated targets from a randomly arranged matrix of characters for one hour. All participants reported symptoms of visual fatigue after the task. Prom the averaged ERP waveform, P100 and P300 components were detected and their amplitudes and peak latencies were analyzed. Amplitude of the P100 component measured after performing the task was larger than that in the control condition. Near points after the task increased in comparison with those, before the task. Results indicated that visual fatigue by the experimental task evoked both eye-strain and altered function of the primary visual cortex. Feasibility of applying the present method to a low-workload software development is discussed.

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  • Study of EGG during sleep

    KUDOU Keiki, OGAWA Shuhei, HAYASAKA Yoshiaki, KAWAMURA Tomokazu, ITOH Takashi, KANAI Naoaki, YAMAZAKI Kiyoyuki, OKAMOTO Katsuro

    Journal of Advanced Science   13 ( 1 )   35 - 36   2001.7

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    Language：Japanese   Publisher：Society of Advanced Science  

    In order to analyze the autonomic functioning during sleep, polysomnographic measurements including electrogastrogram (EGG) were carried out with healthy adult subjects. The periodic change of the EGG activities calculated from integrated power spectra was not identical to the change of sleep stage. It is suggested that the EGG reflects different aspect of the autonomic profile of human sleep.

    DOI： 10.2978/jsas.13.35

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  • Developmental Aspects of the Randomness of the Human Body Sway Reviewed

    TODA Takayuki, KIMURA Tatsuhiro, HAYASAKA Yoshiaki, KAWAMURA Tomokazu, NAGASHIMA Keiko, YAMAZAKI Kiyoyuki, OKAMOTO Katsuro

    The Bulletin of School of High-Technology for Human Welfare, Tokai University   10   239 - 242   2001.3

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    Language：Japanese   Publisher：東海大学  

    Body sway variations were recorded in elementary school children, junior high school and university students. As an index of randomness, averaged waveforms of squared data of fine fluctuating segments in each school year subjects were calculated. Gradients of time dependent increase segments in the averaged curves of X-axis components were analyzed. Results showed that the index decreased in advance of their age. The role of the randomness fluctuation is discussed.

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  • The Effects of Stimulus Duration on Binocular Rivalry Reviewed

    MATSUMOTO Hirotaka, OGAWA Shuhei, OHASHI Toshihiko, KIMURA Tatsuhiro, HAYASAKA Yoshiaki, ITOH Takashi, YAMAZAKI Kiyoyuki, OKAMOTO Katsuro

    The Bulletin of School of High-Technology for Human Welfare, Tokai University   10   221 - 225   2001.3

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    Language：Japanese   Publisher：東海大学  

    In order to estimate the required time of the occurrence of Binocular Rivalry (BR), psychological experiments were carried out using a computer controlled CRT screen. Two square figures filled with stripes and displayed on the right and left sides of the screen were used as the stimulus for the experiment. Eight healthy adult subjects were instructed to press the designated key for each perceived state of right side stimulus, left side stimulus or a combination of them. As a result, the stimulus duration required for the occurrence of the BR was estimated to be at least 400ms.

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  • The Effects of Cue Stimulus on Lateral Dominance of Binocular Rivalry Reviewed

    OYA Seiji, OHASHI Toshihiko, KIMURA Tatsuhiro, HAYASAKA Yoshiaki, KAWAMURA Tomokazu, ITOH Takashi, OKAMOTO Katsuro, YAMAZAKI Kiyoyuki

    The Bulletin of School of High-Technology for Human Welfare, Tokai University   10   215 - 219   2001.3

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    To investigate the cognitive aspect of binocular rivalry (BR), an experimental study was carried out using a computer controlled CRT screen. Two square figures filled with different stripes were displayed on the right side and left side of the screen as the BR inducing stimulus. Subjects were instructed to press designated keys for three kinds of received states the right side figure, the left side figure and a combination of them. During the experiment, a continuous line or a non-continuous line as the cue stimuli was displayed on a perceived or a non-perceived visual field. Results showed that the cue stimulus displayed on a non-perceived visual field induced a change in the dominance of BR. Information processing mechanisms for non-perceived visual stimulus are discussed.

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  • Relationship between subjective sleep ratings and the EEG

    OGAWA Yuko, HIRAKI Toru, OGAWA Shuhei, HAYASAKA Yoshiaki, KIMURA Tatsuhiro, SHIMURA Takahiro, YAMAZAKI Kiyoyuki, OKAMOTO Katsuro

    Journal of Advanced Science   13 ( 1 )   39 - 39   2001

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    To investigate the relationship between sleep rating scales (OSA, KSS) and measured all night sleep EEG, experiments were carried out with healthy adult volunteers. Results showed that the KSS ratings correlated with time percentage of non-REM sleep state. The OSA ratings correlated with waking time in the experimental night. In evaluation of the quality of sleep, some attention should be paid to subjective ratings of the sleep.

    DOI： 10.2978/jsas.13.39

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  • Measurement of readiness potential of involuntary movement

    NISHIGAI Sayaka, HAYASAKA Yoshiaki, YAMAZAKI Kiyoyuki, OKAMOTO Katsuro

    Journal of Advanced Science   12 ( 1 )   53 - 54   2000.8

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    In order to analyze mechanisms of involuntary movement, readiness potentials of saliva swallowing were recorded in control and light sleep condition from healthy subjects. As a trigger signal for data averaging, surface EMG recorded from neck was used. Negative component of readiness potential before onset of swallowing was not observed clearly in sleep and control conditions. Sensory evoked potentials after swallowing were observed in both conditions. Result shows that it is possible to measure readiness potentials even in sleeping subjects.

    DOI： 10.2978/jsas.12.53

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  • Psychophysiological assessment of panic state using mental task

    OKUYAMA Yuta, NAKANISHI Toshiyuki, SUZUKI Tatsuhiko, HAYASAKA Yoshiaki, NAGASHIMA Keiko, YAMAZAKI Kiyoyuki, OKAMOTO Katsuro

    Journal of Advanced Science   12 ( 1 )   55 - 56   2000.8

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    In order to assess psychophysiological state of the hyper arousal, pulse transit time during a mental task was analyzed using the ECG R-wave finger plethysmogram onset asynchrony (RPA) measurements. As the mental task, we used the Wisconsin card sorting test (WCST). As the experimental condition, a balloon burst setting with time limit and narration comprehension test were used. Under balloon burst setting experimental condition, measured RPAs were shorter than these in control condition. The result suggested that the RPA is a possible tool for the assessment of panic state through the autonomic responses.

    DOI： 10.2978/jsas.12.55

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  • Your brain sees what you can't see : VEP study of selective attention in binocular rivalry

    MATSUNAGA Tetsuo, HAYASAKA Yoshiaki, KIMURA Tatsuhiro, KAWAMURA Tomokazu, OHASHI Toshihiko, YAMAZAKI Kiyoyuki, OKAMOTO Katsuro

    Journal of Advanced Science   12 ( 1 )   57 - 58   2000.8

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    In order to reveal cognitive processing of sensory information in binocular rivalry, visual evoked potentials (VEP) were recorded using pattern reversal stimulus to received side and the other side of visual field. VEP components were observed by evoking stimulus to non-received side of visual field. Results show that the processed information projected to visual cortex does not always generate subjective visual experience.

    DOI： 10.2978/jsas.12.57

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  • Effects of cue stimulus on lateral dominance of binocular rivalry

    OYA Seiji, OHASHI Toshihiko, KIMURA Tatuhiro, HAYASAKA Yosiaki, KAWAMURA Tomokazu, OKAMOTO Katsuro, YAMAZAKI Kiyoyuki

    JES Ergonomics   36   192 - 193   2000.6

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    DOI： 10.5100/jje.36.Supplement_192

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  • VEP study of Binocular rivalry

    MATSUNAGA Tetsuo, KIMURA Tatsuhiro, HAYASAKA Yoshiaki, KAWAMURA Tomokazu, YAMAZAKI Kiyoyuki, OKAMOTO Katsuro

    JES Ergonomics   36   190 - 191   2000.6

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    DOI： 10.5100/jje.36.Supplement_190

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  • A Psychophysiological Study of the Hyper Arousal State. : Using ECG and PTG Reviewed

    SUZUKI Tatsuhiko, AOKI Shihori, HAYASAKA Yoshiaki, KAWAMURA Tomokazu, NAGASHIMA Keiko, ITOH Takashi, YAMAZAKI Kiyoyuki, OKAMOTO Katsurou

    The Bulletin of School of High-Technology for Human Welfare, Tokai University   9   241 - 246   2000.3

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    Language：Japanese   Publisher：東海大学  

    In order to assess the psychophysiological state of hyper arousal, pulse transit time during a mental task was analyzed using the ECG R-wave finger plethysmogram onset asynchrony (RPA) measurement. As the mental task, we used the Wisconsin Card Sorting Test (WCST). As the experimental condition, a balloon burst indicating that the time limit was used. Under experimental conditions, measured RPAs were shorter than those in controlled conditions. The results suggested that the RPA is a possible tool for the assessment of hyper arousal through the autonomic responses.

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  • An Effect of 3-D Stereovision on Binocular Rivalry Reviewed

    OHASHI Toshihiko, SANADA Takahisa, KAWAMURA Tomokazu, KIMURA Tatsuhiro, HAYASAKA Yoshiaki, YAMAZAKI Kiyoyuki, OKAMOTO Katsuro

    The Bulletin of School of High-Technology for Human Welfare, Tokai University   9   223 - 226   2000.3

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    Three-dimensional perception is based on binocular vision. When different images are presented to both eye, binocular rivalry occurs. The purpose of this study is to investigate the interaction of the 3D-stereovision and the visual conflict caused by binocular rivalry. Ocular dominance was recorded using a personal computer in 3D stereogram with rivalry inducing figures. Our results showed,that under the condition of 3D stereogram with rivalry, the mean rate of fusion time was larger than that in the control condition. The mechanisms of binocular interaction for visual information are discussed

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  • Change of pulse transit time under mentally cornered condition

    MIYAWAKI Kouji, ODAGAWA Shinya, AOKI Shihori, HAYASAKA Yoshiaki, KOUOU Takahito, IWAGAMI Taisuke, IKEDA Kenji, YAMAZAKI Kiyoyuki, OKAMOTO Katurou

    Journal of Advanced Science   11 ( 1 )   54 - 54   1999.8

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    The purpose of this study is to investigate the change of autonomic functioning induced by an emotionally stimulating game. In the game, subjects were asked to give words which can be classified designated category in limited time. The pulse transit time were measured and analyzed before, during and after the game. Characteristics of autonomic functioning in mentally cornered condition were discussed.

    DOI： 10.2978/jsas.11.54

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  • Psychophysiological study of hyper arousal state : Using ECG and PTG

    SUZUKI Tatsuhiko, AOKI Shihori, HAYASAKA Yoshiaki, YAMAZAKI Kiyoyuki, OKAMOTO Katsurou, KAWAMURA Tomokazu

    JES Ergonomics   35   266 - 267   1999.5

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    DOI： 10.5100/jje.35.2Supplement_266

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  • An Experimental Study on Hyper Arousal State by Using Physiological Index Reviewed

    HAYASAKA Yoshiaki, IWAGAMI Taisuke, KOUOU Takahito, NAGASHIMA Keiko, YAMAZAKI Kiyoyuki, ITO Takashi, OKAMOTO Katuro

    The Bulletin of School of High-Technology for Human Welfare, Tokai University   8   175 - 179   1999.3

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    We are apt to be disturbed and make mistakes under psychological and social stresses. This is characterized as the hyper-arousal state. To investigate the physiological aspects of the hyper-arousal state, an EEG and plethysmogram (PTG) were obtained and the pulse transit time was estimated using the R-wave of the electrocardiogram as the starting point of pulsation. Normal volunteers were instructed to shoot a model-gun toward their own heads. The pulse transit time after the shooting was significantly decreased (t<0.002) compared to pre-shooting period. Spectral analysis of the EEG also showed a relevant change in the shooting. Based on these biological indices, one will be able to access the psychophysiological states under certain stresses.

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  • Physiological and psychological assessment of the hyper arousal utilizing a card sorting task

    K. Yamazaki, T. Suzuki, Y. Hayasaka, K. Nagashima, K. Okamoto, K. Ikeda

    IEEE Region 10 Annual International Conference, Proceedings/TENCON   2   1143 - 1145   1999

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    Language：English   Publishing type：Research paper (international conference proceedings)   Publisher：Institute of Electrical and Electronics Engineers Inc.  

    In order to assess psychophysiological state of the hyper arousal, pulse transit time during a mental task was analyzed using the ECG R-wave finger plethysmogram onset asynchrony (RPA) measurement. As the mental task, the authors used the Wisconsin card sorting test (WCST). In the test, the following two kinds of condition were used: (1) a toy balloon burst setting with time limit, and (2) a narrated Japanese novel comprehension test. Under experimental conditions, measured RPAs were shorter than these in control conditions. It is suggested that the RPA is a possible tool for the assessment of hyper arousal through the autonomic responses.

    DOI： 10.1109/TENCON.1999.818627

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  • Study of local blood flow of human body sitting on a Sitzball

    HAYASAKA Yoshiaki, SUGIMOTO Masaya, NAGASHIMA Keiko, YAMAZAKI Kiyoyuki, OKAMOTO Katsuro

    Journal of Advanced Science   10 ( 2 )   129 - 129   1998

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    In this study, local blood flow (LBF) was measured by using a near infrared light oxygenation (NIRO) monitor. Subjects were sitting on office chairs and a Sitzball (balloon shaped chair). LBF in Sitzball sitting condition was significantly greater than that in control condition. Physiological effects of Sitzball were discussed.

    DOI： 10.2978/jsas.10.2-3_129

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  • Measurement of Perception Time of Random Dot Stereogram Utilizing a Computer Controlled Tachistoscope Reviewed

    MIYAKE Takahisa, HAYASAKA Yoshiaki, KAWAMURA Tomokazu, KIMURA Tatsuhiro, YAMAZAKI Kiyoyuki, OKAMOTO Katsuro

    The Bulletin of School of High-Technology for Human Welfare, Tokai University   6   285 - 289   1997.3

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    The purpose of this study is to analyse the cognitive mechanisms of visual depth perception using a psychological experiment. As a model of depth perception, a 3-D random dot stereogram was used. The experimental task was to discriminate stereographically displayed stimuli which three different depths of visual cliff quickly changed on the tachistoscope. To estimate stereographic perception time, time reqired to respond correctly was measured. Results suggested that the stereographic perception was completed at least for 100 ms in healthy subject.

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  • Measurement of threshold time of depth perception elicited by 3D-stereogram

    MIYAKE T., HAYASAKA Y., KAWAMURA T., TAKAGI S., YAMAZAKI K., OKAMOTO K.

    JES Ergonomics   37   284 - 285   1996.4

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    DOI： 10.5100/jje.32.Supplement_284

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Misc.

  • OSCE公的化へ向けたシミュレーション教育の質改善 ICT、VRを活用した診療参加型臨床実習前の臨床教育

    早坂 明哲, 藤倉 輝道, 横堀 將司

    医学教育   53 ( Suppl. )   88 - 88   2022.7

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  • Development of Voice Dialogue System for Simulated Patient and Detection of Interviewer’s Nod

    本間悟史, 橋本卓弥, 藤倉輝道, 早坂明哲, 竹下俊行, 伊藤保彦, 大久保公裕, 竹村裕

    日本機械学会ロボティクス・メカトロニクス講演会講演論文集(CD-ROM)   2021   1 - 6   2021

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  • 若年発症ケロイドの統計学的観察

    野一色千景, 小川令, 早坂明哲

    日本医科大学医学会雑誌   14 ( 4 )   217 - 217   2018

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  • 転写シールによるシミュレーション教育用ムラージュ(特殊メイク)の開発

    井上千鹿子, 早坂明哲, 藤倉輝道

    医学教育   48 ( Suppl. )   185   2017.8

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  • 日本医科大学における全授業LMS利用の現状と課題

    早坂 明哲, 井上 千鹿子, 伊藤 保彦, 竹下 俊行, 藤倉 輝道

    医学教育   48 ( Suppl. )   212 - 212   2017.8

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  • シミュレーター用ムラージュ(特殊メイク)の教材開発と低コスト化の取り組み

    井上千鹿子, 早坂明哲, 藤倉輝道

    医学教育   47 ( Suppl. )   222   2016.7

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  • タブレット端末を利用したOSCE実施支援システムの評価者によるユーザ評価

    早坂 明哲, 井上 千鹿子, 伊藤 保彦, 竹下 俊行, 藤倉 輝道

    医学教育   47 ( Suppl. )   201 - 201   2016.7

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  • 日本医科大学クリニカル・シミュレーション・ラボ(C.S.Lab.)における変遷と利用者の推移

    阿曽 亮子, 井上 千鹿子, 早坂 明哲, 竹下 俊行, 藤倉 輝道

    日本シミュレーション医療教育学会雑誌   4   109 - 109   2016.6

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  • ケロイドの原因・部位・性差の検討

    野一色千景, 赤石諭史, 小川令, 早坂明哲

    日本医科大学医学会雑誌   12 ( 4 )   174 - 174   2016

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  • 医用統計ソフトのいろいろとその正しい使い方 (特集 外科系におけるPC活用術)

    早坂 明哲

    Pepars   ( 108 )   97 - 101   2015.12

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    Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)   Publisher：全日本病院出版会  

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  • 仲間と、そして市民としてのSP参加で学ぶ 新入生オリエンテーションTBL

    藤倉 輝道, 井上 千鹿子, 早坂 明哲, 三宅 弘一, 樫村 正美, 竹下 俊行

    医学教育   46 ( Suppl. )   110 - 110   2015.7

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  • 模擬患者(SP)の定着率の改善の試み SP養成のプログラムの10年間の取組と推移

    井上 千鹿子, 阿曽 亮子, 高柳 和江, 早坂 明哲, 竹下 俊行, 藤倉 輝道

    医学教育   46 ( Suppl. )   109 - 109   2015.7

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  • 日本医科大学におけるFDワークショップ20年間の歩みと今後の展望

    竹下 俊行, 藤倉 輝道, 早坂 明哲, 井上 千鹿子

    医学教育   46 ( Suppl. )   147 - 147   2015.7

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  • タブレット端末を利用したOSCE実施支援システムの導入

    早坂 明哲, 井上 千鹿子, 伊藤 保彦, 竹下 俊行, 藤倉 輝道

    医学教育   46 ( Suppl. )   224 - 224   2015.7

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  • 大学における、医学教育、指導方法にこだわらないfaculty developmentの取り組み(第1報)

    岡田 唯男, 藤倉 輝道, 竹下 俊行, 早坂 明哲, 井上 千鹿子

    医学教育   46 ( Suppl. )   147 - 147   2015.7

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  • びまん性肺疾患に対するエビデンスを構築する新規戦略的研究班 特発性肺線維症の急性増悪患者に対するトレミキシンを用いた血液浄化療法(PMX療法)の有効性及び安全性に関する探索的試験のプロトコール

    國保成暁, 阿部信二, 阿部信二, 神尾孝一郎, 弦間昭彦, 早坂明哲, 竹内正弘, 谷口博之, 迎寛, 坂東政司, 本間栄, 馬場智尚, 小倉高志, 吾妻安良太

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  • 日本医科大学のeラーニング環境と学生のアンケート調査報告

    早坂明哲, 伊藤高司, 藤倉輝道

    医学教育   45 ( Suppl. )   193   2014.7

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  • PBLを発展させた医学部1年生向け学習ロードマップ体験プログラム

    藤倉 輝道, 高柳 和江, 早坂 明哲, 根本 崇宏, 樫村 正美, 清水 一雄

    医学教育   45 ( Suppl. )   90 - 90   2014.7

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  • 学内公開のOSCE「教育・学習用DVD」へのアクセス記録にみる学生の学習態度

    伊藤 高司, 早坂 明哲, 奥重 秀彦, 滋野 恭子, 阿曽 亮子, 吾妻 安良太, 志村 俊郎

    医学教育   41 ( Suppl )   177 - 177   2010.7

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  • 運動残効知覚中の脳波の検討

    芹澤由洋, 大塚光明, 木村達洋, 早坂明哲, 山崎清之

    日本生体医工学会大会プログラム・論文集(CD-ROM)   47th   2008

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  • 動的錯視知覚中の脳波の検討

    大塚光明, 津久井智彦, 芹澤由洋, 早坂明哲, 木村達洋, 山崎清之

    日本生体医工学会大会プログラム・論文集(CD-ROM)   47th   2008

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  • A-21-18 The proposal of the Sphygmograph used in a sensor network

    Segawa Norihisa, Yamazaki Kiyoyuki, Hayasaka Yoshiaki, Sawamoto Jun

    Proceedings of the IEICE General Conference   409 - 409   2007

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  • 数字ストループ課題間の待ち時間における脳波の検討

    長谷川裕久, 竹原直紀, 早坂明哲, 木村達洋, 岡本克郎, 山崎清之

    日本人間工学会関東支部大会講演集   36th   2006

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  • 高品質ネットワーク環境の創生に向けた生理心理学的評価方法に関する研究―処理の待ち時間について―

    早坂明哲, 木村達洋, 瀬川典久, 後藤幸功, 山崎清之, 宮崎正俊, 村山優子

    情報処理学会シンポジウム論文集   2005 ( 6 )   741 - 744   2005.7

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  • 12. 事象関連電位(ERPs)を用いた視覚系疲労評価法に関する研究(平成16年度日本エム・イー学会東海支部学術集会, 支部大会抄録)

    木村 達洋, 早坂 明哲, 池田 研二, 山崎 清之

    生体医工学 : 日本エム・イー学会誌   42 ( 4 )   422 - 422   2004.12

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  • A Study on the Vision Fatigue Using Visual Evoked Potentials(VEP)

    Kimura Tatsuhiro, Hayasaka Yoshiaki, Segawa Norihisa, Miyazaki Masatoshi, Yamazaki Kiyoyuki

    Proceedings of the IEICE General Conference   304 - 304   2002

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  • 対向する動的指標群の競合的認知と眼球運動

    木村達洋, 寺田有我, 早坂明哲, 山崎清之, 岡本克郎

    日本ME学会大会論文集   40th   2001

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  • 重心動揺ランダム性の発達的研究

    戸田貴之, 木村達洋, 早坂明哲, 川村智一, 長島圭子, 山崎清之, 岡本克郎

    ライフサポート学会大会講演予稿集   16th   2000

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  • 視野闘争時の誘導刺激による認知側交代パタンの変化

    木村達洋, 早坂明哲, 大橋俊彦, 小川修平, 山崎清之, 岡本克郎

    ライフサポート学会大会講演予稿集   16th   2000

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  • 視覚誘発電位を用いた両眼視野闘争の実験的研究

    早坂明哲, 松永哲雄, 木村達洋, 小川修平, 池田研二, 山崎清之, 岡本克郎

    ライフサポート学会大会講演予稿集   16th   2000

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  • 視野闘争に及ぼす有意味誘導刺激の効果

    石井裕也, 早坂明哲, 木村達洋, 山崎清之, 岡本克郎

    ライフサポート学会大会講演予稿集   16th   2000

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  • 視野闘争成立時間の推定

    小川修平, 松本裕孝, 大橋俊彦, 木村達洋, 早坂明哲, 山崎清之, 岡本克郎

    ライフサポート学会大会講演予稿集   16th   2000

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  • Effects of 3-D stereovision on binocular rivalry

    OHASHI Toshihiko, SANADA Takahisa, KAWAMURA Tomokazu, HAYASAKA Yoshiaki, KIMURA Tatsuhiro, YAMAZAKI Kiyoyuki, OKAMOTO Katsuro

    The Japanese Journal of Ergonomics   35   232 - 233   1999.5

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  • Psychophysiological study of hyper-arousal state I : Using mental task performance

    NAGASHIMA Keiko, AOKI Shihori, HAYASAKA Yoshiaki, YAMAZAKI Kiyoyuki, OKAMOTO Katsuro

    35   264 - 265   1999.5

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    Language：Japanese  

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  • MedicalIinformation Science, Data Science

    2023.4
    Institution：Nippon Medical School

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  • 情報科学演習

    Institution：日本医科大学

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  • コンピュータ・リテラシー

    Institution：日本医科大学

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  • 情報科学

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