著者

岡田 志麻 藤原 義久 松浦 英文 安田 昌司 水貝 浩二郎 牧川 方昭 飯田 健夫

出版者

公益社団法人 日本生体医工学会

雑誌

生体医工学 (ISSN:1347443X)

巻号頁・発行日

vol.41, no.4, pp.493-497, 2003-12-10 (Released:2011-09-05)

参考文献数

6

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Sleep is very important to keep our physical condition healthy. Many studies have been devoted to clarify the mechanism of sleep and to monitor the sleep all night. In this study, we paid attention to heart activity during sleep and have developed a nonrestraint monitoring method of heart activity using an acceleration sensor set inside the coverlet. This method is easy for the use of sleep monitoring at home in daily life. An acceleration sensor was set inside the coverlet as it opposing to subject's left chest. Subjects were asked to lie in supine position and the coverlet with an acceleration sensor was put on the subject. Mechanical vibration from heart activity expected to be carried to the acceleration sensor through the coverlet. As a result, periodic vibration was measured successfully and this vibration was proved to be in high correlation with the R wave of ECG in six subjects. The same results were obtained even in case of lying in right and left lateral decubitus position.

著者

川口 孝泰 鵜山 治 西山 忠博 小河 幸次 飯田 健夫

出版者

一般社団法人 日本人間工学会

雑誌

人間工学 (ISSN:05494974)

巻号頁・発行日

vol.34, no.5, pp.261-270, 1998

被引用文献数

2

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本研究は, head-up を伴う体位変換介助時において, 被介護者に変換を"事前予告"しておくことが循環調節にどのような影響をもたらすかを, 自律神経機能および脳循環の測定により検討した. 実験は, 健康成人12人 (男性6人, 女性6人) に対して, head-up と同時に声をかけながら70°head-up tilt (仰臥位から座位) を他動的に実施【事前予告なし】と, 5分前から1分ごとに体位変換を予告して70°head-up tilt を実施【事前予告あり】の2条件で行った. その結果,<br>1) head-up 後の平均RR間隔は"事前予告あり"のほうが短くなった (p<0.05).<br>2) head-up 前のLF/HF値は, 3分前頃から"事前予告あり"のほうが有意に高くなった (p<0.01).<br>3) 脳循環は head-up により, oxy-Hb および total-Hb が低下した. 特に"事前予告あり"では, head-up 前に oxy-Hb に上昇がみられた.<br>本研究により, head-up を伴う体位変換の前に"事前予告"を行うことで, head-up 後の循環調節の準備状態に入ることが明らかとなった.

著者

藤原 義久 冷水 一也 源野 広和 松浦 英文 安田 昌司 飯田 健夫 牧川 方昭

出版者

公益社団法人 日本生体医工学会

雑誌

生体医工学 (ISSN:1347443X)

巻号頁・発行日

vol.43, no.1, pp.162-171, 2005

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This paper describes the development of a sensor incorporating an algorithm that estimates the quality of comfortableness by measuring peripheral skin temperature, pulse, and galvanic skin response (GSR) that reflect autonomic nervous system activity. A correct answer rate of 83% was obtained between the subjective comfortableness and the estimated comfortableness by the developed sensor. For the application of this human feeling sensor, we used it to estimate the comfortableness of subjects receiving massages, then developed two alternative adaptive massage control procedures based on the sensor's estimate, and verified the effectiveness of the results through testing the subjects. We observed that in course A (dynamic comfortableness) the peripheral skin temperature dropped and the GSR and pulse rate increased, while in course B (static comfortableness) the peripheral skin temperature rose and the GSR and pulse rate dropped. By the end of the control sequence, there was a statistically significant difference in the amounts of change in both the peripheral skin temperature and the GSR between the two sequences (<i>p</i> < 0.05). To examine the effects of each course more closely, we mapped the trajectories of physiological change during the control sequences of each course at twentysecond intervals, and the results correlated closely with the subjective assessments. These results suggest that bio-control adapted to comfortableness is feasible.

著者

飯田 健夫

出版者

公益社団法人 日本心理学会

雑誌

心理学研究 (ISSN:00215236)

巻号頁・発行日

vol.58, no.3, pp.186-200, 1987-08-31 (Released:2010-07-16)

参考文献数

148

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Psychological studies on accommodation are reviewed on the following subjects: (1) subjective and objective methods of measuring accommodation, and their related practical problems in visual experiments, (2) accommodative responses in the absence of an adequate visual stimulus (a resting point of accommodation or a dark focus), and the specific phenomena of night myopia, empty myopia and instrument myopia, (3) contribution of accommodation to the perception of depth and the influence of imagination or thinking of distance on accommodation, (4) unsettled problems on accommodation in the three domains of myopia mentioned above, and the prospect of research in the future, and (5) a description of the results of psychological studies on accommodation that are applied to the establishment of an optimal condition of visual environment.

著者

岡田 志麻 藤原 義久 松浦 英文 安田 昌司 水貝 浩二郎 牧川 方昭 飯田 健夫

出版者

社団法人日本生体医工学会

雑誌

生体医工学 : 日本エム・イー学会誌 (ISSN:1347443X)

巻号頁・発行日

vol.41, no.4, pp.493-497, 2003-12-10

---

Sleep is very important to keep our physical condition healthy. Many studies have been devoted to clarify the mechanism of sleep and to monitor the sleep all night. In this study, we paid attention to heart activity during sleep and have developed a nonrestraint monitoring method of heart activity using an acceleration sensor set inside the coverlet. This method is easy for the use of sleep monitoring at home in daily life. An acceleration sensor was set inside the coverlet as it opposing to subject's left chest. Subjects were asked to lie in supine position and the coverlet with an acceleration sensor was put on the subject. Mechanical vibration from heart activity expected to be carried to the acceleration sensor through the coverlet. As a result, periodic vibration was measured successfully and this vibration was proved to be in high correlation with the R wave of ECG in six subjects. The same results were obtained even in case of lying in right and left lateral decubitus position.

著者

藤原 義久 冷水 一也 源野 広和 松浦 英文 安田 昌司 飯田 健夫 牧川 方昭

出版者

社団法人日本生体医工学会

雑誌

生体医工学 : 日本エム・イー学会誌 (ISSN:1347443X)

巻号頁・発行日

vol.43, no.1, pp.162-171, 2005-03-10

参考文献数

20

被引用文献数

2

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This paper describes the development of a sensor incorporating an algorithm that estimates the quality of comfortableness by measuring peripheral skin temperature, pulse, and galvanic skin response (GSR) that reflect autonomic nervous system activity. A correct answer rate of 83% was obtained between the subjective comfortableness and the estimated comfortableness by the developed sensor. For the application of this human feeling sensor, we used it to estimated the comfortableness of subjects receiving massages, then developed two alternative adaptive massage control procedures based on the sensor's estimate, and verified the effectiveness of the results through testing the subjects. We observed that in course A (dynamic comfortableness) the peripheral skin temperature dropped and the GSR and pulse rate increased, while in course B (static comfortableness) the peripheral skin temperature rose and the GSR and pulse rate dropped. By the end of the control sequence, there was a statistically significant difference in the amounts of change in both the peripheral skin temperature and the GSR between the two sequences (p<0.05). To examine the effects of each course more closely, we mapped the trajectories of physiological change during the control sequences of each course at twentysecond intervals, and the results correlated closely with the subjective assessments. These results suggest that bio-control adapted to comfortableness is feasible.

著者

川村 貞夫 飯田 健夫 小畠 敏夫 浮田 恭子 八木 良明 森島 知子

出版者

Japanese Society for Engineering Education

雑誌

工学教育 (ISSN:13412167)

巻号頁・発行日

vol.56, no.2, pp.2_20-2_24, 2008 (Released:2008-04-04)

被引用文献数

1

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This paper claims the importance of “FOR ALL Education of science and technology” for high school students. “FOR ALL Education of science and technology” means the following two points : (1) Science and Technology Education for all students including students who will not enter the departments of science and technology in universities. (2) Education for all science and technology fields. Generally it is difficult to realize “FOR ALL Education of science and technology” . In this paper, the authors propose several educational programs to overcome the difficulty.

著者

藤原 義久 冷水 一也 源野 広和 松浦 英文 安田 昌司 飯田 健夫 牧川 方昭

出版者

公益社団法人 日本生体医工学会

雑誌

生体医工学 (ISSN:1347443X)

巻号頁・発行日

vol.43, no.1, pp.162-171, 2005 (Released:2007-01-19)

参考文献数

20

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This paper describes the development of a sensor incorporating an algorithm that estimates the quality of comfortableness by measuring peripheral skin temperature, pulse, and galvanic skin response (GSR) that reflect autonomic nervous system activity. A correct answer rate of 83% was obtained between the subjective comfortableness and the estimated comfortableness by the developed sensor. For the application of this human feeling sensor, we used it to estimate the comfortableness of subjects receiving massages, then developed two alternative adaptive massage control procedures based on the sensor's estimate, and verified the effectiveness of the results through testing the subjects. We observed that in course A (dynamic comfortableness) the peripheral skin temperature dropped and the GSR and pulse rate increased, while in course B (static comfortableness) the peripheral skin temperature rose and the GSR and pulse rate dropped. By the end of the control sequence, there was a statistically significant difference in the amounts of change in both the peripheral skin temperature and the GSR between the two sequences (p < 0.05). To examine the effects of each course more closely, we mapped the trajectories of physiological change during the control sequences of each course at twentysecond intervals, and the results correlated closely with the subjective assessments. These results suggest that bio-control adapted to comfortableness is feasible.