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Hak-Soo SHIN, Jung Dae KIM, Kwang-Sup SOH, Byung-Doo KWON, Sang Yong C ...
Article type: Article
2003Volume 21Issue 1 Pages
42-49
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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We measured the bio-magnetic field emitting from palm during Qi emission. Among the eleven Qigong trainees two subjects emitted strong magnetic fields of a hundred nT order during the emitting time interval. We present the real time data and also analyze characteristic features by the methods of variance, windowed Fourier transform, and wavelet transform. The characteristic frequencies are on a broad band between 0.1 Hz and 4 Hz.
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Xumei WANG, Mahito KIMURA, Michio HADA, Yasunori NAKAJIMA, Takao MORI, ...
Article type: Article
2003Volume 21Issue 1 Pages
50-57
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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Background : In psychology, hypnosis is classified into three stages : movement control stage (stage 1), sensory control stage (stage 2), and memory control stage (stage 3). However, this has not been verified scientifically. Therefore, we studied the cognitive ability, event-related potentials (ERPs), during different stages of hypnosis. Methods : There were two female subjects. One was of high hypnotizability and the other of low hypnotizability. ERP was elicited by a two-tone auditory discrimination task, recorded with 28 electrodes. The Global Field Power (GFP) and the Current Source Density (CSD) of the N100 and P300 components were calculated from the acquired brain waves. Results : Compared to prehypnosis, the amplitudes of N100 and P300 of the highly susceptible subject increased, but there was no difference among the three stages in hypnosis. For the lowly susceptible subject during hypnosis, the GFP of N100 increased in stages 1 and 3. The GFP of P300 increased slightly in stage 1, but decreased in stages 2 and 3. For the subject with low hypnotizability, we thought that in stage 2 the frontal source had attenuated. Conclusion : The hypnotic state in a highly hypnotizability subject may be related to a near condition of relaxation, and the hypnotic state in a low hypnotizability subject may be related to a near condition of a tense state. The selective attention and cognitive ability increased during hypnosis in the highly hypnotizability subject, but decreased in the low hypnotizability subject. In addition, the disappeared subcomponent of 1 or 6 of N100 components in the low hypnotizability subject may be related to attention shift.
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Wei-guo HUA, Wei-zong CHU, Xian-yong LIU, Hui-ju CHEN, Yu-ying WANG
Article type: Article
2003Volume 21Issue 1 Pages
58-64
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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According to the characteristics of energy metabolism of tumor, we examined the effect of "Ban-Pi-Gu" on 182 mice transplanted with S_<180> ascitic tumor. "Ban-Pi-Gu" is a half dietary restriction, and it includes changes of formulary diet too. The result was obviously prolonging mean surviving days (P<0.05-0.001), improving living quality and decreasing blood sugar level.
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Weizhong CHEN, Tong ZHANG, Junko NUREKI, Fengtong WANG, Suzue HARAGUCH ...
Article type: Article
2003Volume 21Issue 1 Pages
65-78
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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In the physiological measurement studies of Qigong, there is no analytical research either on the skin surface temperature of thenar eminence of the qi-emission hand, or on the correlation between thenar eminence and central portion of forehead. For the present report, skin surface temperature changes of the hand and central portion of forehead during the qi-emission task by an expert, who has been practicing Qigong for about 40 years, were measured and analyzed. Consequently, it was discovered that there was a significant difference (p<0.01) and a strong negative correlation (r=-0.91) between central portion of forehead and thenar eminence of the qi-emission hand. However, no significant difference and correlation were seen between right-and-left laogong. Moreover, as a result of comparing the average temperature slope for one minute in the middle of the qi-emission task and comparison task period, there was a significant difference in the right thenar eminence (p<0.05) and central portion of forehead (p<0.001), and no significant difference in first finger, right and left laogong where considered as a region emitting qi.
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Article type: Appendix
2003Volume 21Issue 1 Pages
79-
Published: March 01, 2003
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Article type: Appendix
2003Volume 21Issue 1 Pages
80-84
Published: March 01, 2003
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Article type: Appendix
2003Volume 21Issue 1 Pages
85-88
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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Mikio YAMAMOTO, Kimiko KAWANO
Article type: Article
2003Volume 21Issue 1 Pages
89-90
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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The authors visited Seoul, Korea to take part in The 6^<th> Chui-san International Science Symposium held by Minaisa Club. They visited several leading universities, Seoul National University, Yonsei University, Graduate School of Complementary Alternative Medicine and Clinics of Pochon CHA University and institutions, Samsung Advanced Institute of Technology, Korean Institute of Brain Science. They interacted with Korean researchers associated with the fields of human potential science and alternative medicine. "Mind body Science" International Forum will be held in Seoul around 22-25 August 2004.
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Yoshio MACHI, Chao LIU, Kimiko KAWANO
Article type: Article
2003Volume 21Issue 1 Pages
91-99
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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Using physiological measurements, we measured a master of the Jujishiki Health method, and the effects in two patients. This method is promoted by the Japan Mennonite Ashoro Christian Church. This treatment is said to use Qi power, so we tested using several techniques previously used to analyze Qi power. We found that the practitioner gave several hit close to the backbone with his hand, which influenced the subject's autonomic nerve system. A male, over 20 years old, was shown by ECG data to have his parasympathetic nervous system dominant. In addition, a female patient, around 70 years old, was shown as having a strong sympathetic nervous system. It was accepted that both person's conditions improved with this treatment. In addition, we confirmed that just prior to the treatment of slapping both on the back, R point voltage of ECG began to show some changes. We though that as they were already treated with Qi before being hit, the slapping was unnecessary. Probably the Jujishiki method should be considered as one that uses Qi.
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Kimiko KAWANO, Yoshio MACHI, Chao LIU
Article type: Article
2003Volume 21Issue 1 Pages
100-105
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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EEGs of a healing master and his patients were measured simultaneously while making an extremely short term healing to patients' spinal columns; mainly a waves were analyzed in the resting state before and after the treatment. The ratio of effective a amplitude on the frontal midline to the parietal midline (Fz/Pz) was large on the master, even in the resting state, and it became clearly larger while imaging the treatment. The ratios of the patients showed a tendency to be larger before treatment than after, though they were not significant. Lag time of a waves on the frontal to the occipital area, as an indicator of concentration, was short on the master in the resting state after treatment ; it means, he might be in the concentrating state. On the contrary, the subjects seemed to concentrate before treatment rather than after. Frequency of the α waves became faster after the treatment either on the master or on the patients. It was suggested that there was some influence of the body movement by the treatment and of the activation of the brain. Compared analysis of the sequential EEGs of the master and his patients and also the direct medical effect for patients by this instantaneous, quick treatment are the following study.
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Kimitaka ANAMI, Tong ZHANG, Takeyuki MORI, Yuka KOBAYASHI, Fumiko TANA ...
Article type: Article
2003Volume 21Issue 1 Pages
106-109
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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Hideyuki KOKUBO, Suzue HARAGUCHI, Junichirou KOTAKE, Hideo YOICHI, Wei ...
Article type: Article
2003Volume 21Issue 1 Pages
110-114
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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For several years, the authors have been studying remote action in physiological responses and time differences between motion times of sending and receiving. Here, the Receiver's discriminability index d' was estimated by the signal detection theory. The Receiver judged the existence of the sending signal every 10-second trial. 1280 trials were done by 4 subjects (3 males, 1 females) who were veteran practitioners of martial arts. Total hits were 668 trials (p=0.0588, one tailed) and the average of the Receivers' discriminability indexes d' was 0.092 and its 95% confidence interval was [0.167, 0.016]. Discrimination of the signal existence in remote action was more difficult that in usual sensory stimuli experiments.
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Seiya UCHIDA, Masahiro UENO, Hisanobu SUGANO, Kazuo NITTA
Article type: Article
2003Volume 21Issue 1 Pages
115-119
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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The purpose of our study is to investigate the relationship between the changes of autonomic nervous system of subjects and the expertise of external Qi healers by measurement of the heart rate fluctuation Healers were divided into 3 groups (A, B and C). Healers in group A were doctors, practitioners in acupuncture or nurses (n=10). Healers in group B were volunteer workers in a clinic or in-home care (n=12) Healers in group C were persons other than except the group A or B (n=8). Healthy subjects received external Qi by healer of group A (n=23), B (n=18) and C (n=14). HF and LF/HF were calculated by wavelet analysis of the fluctuation of the heart rate in the subjects' electrocardiogram pre, during and post Qi emission. In the control, HF and LF/HF with prone position (n=19) and sitting position (n=12) were measured and compared to that of the external Qi. HF significantly increased during Qi emission of group A. Qi emission of group A was significantly more effective than group C.
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Qiang LI, Yoshimasa MATSUURA, Shinji TSUBOUCHI, Qiming LI, Norinaga SH ...
Article type: Article
2003Volume 21Issue 1 Pages
120-130
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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In this study, the influence of the level of skill for practicing Shaolin Internal Qigong and difference of the influences between subject and unskilled subjects were investigated. Five men volunteered to participate in this study. The subjects included a 57-year skilled Qigong doctor who has practiced Shaolin Internal Qigong almost every day for more than 40 years and four healthy male college students whose training was less than one year in Shaolin Internal Qigong. Experimental physiological indices included heart rate (HR), oxygen uptake (VO_2), respiratory rate (RR), respiratory phase (themistor), oxygen saturation (StO_2), total Hb, peripheral skin blood flow and lower limb EMG. The peripheral skin blood flow of the skilled subject was decreased from 10% to 25% in both exercises in comparison with the sitting position in rest. No remarkable change of oxygen saturation in the brain in unskilled sub-jects was recognized. Different phenomena of respiratory rate and respiratory phase were shown between the skilled and unskilled subjects to let us know the difference existed in the breathing way. From the difference of participating muscles during exercises between skilled and unskilled subjects, we suggest that there was a necessity of proficiency to keep the posture of Shaolin Internal Qigong. In addition, we conclude that respiratory patterns and discharge of musculus rectus femoris on the electromyogram were the proper physiological indices reflecting the level of skill in Shaolin Internal Qigong.
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Yoshio MACHI, Chao LIU, Koichi TOHEI, Toshiaki ISHIZAKI, Tsutomu HAMAO ...
Article type: Article
2003Volume 21Issue 1 Pages
131-137
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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Shomen-uchi in KI Aikido is a technique to protect oneself by blocking the attacker's blow off with a hand through sensing his Ki just before the blow and guiding it. It has been called Ki, which has been studied physiologically to elucidate what Ki really is. This study shows that the voltage signal in the frontal lob of brain appears very strong in electroencephalography, indicating a state of his concentration, followed by further enhanced voltage along with extension of the active field in that frontal lob when sensing something. Other physiological data such as GSR and R point voltage show similar changes, in which they appeared in three second before the blow nevertheless an actual blow has not been conducted.
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Katsushi YOSHIDA, Takashi AOKI, Yoshinori ADACHI, Yasuo YOSHIHUKU
Article type: Article
2003Volume 21Issue 1 Pages
138-145
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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Mice were irradiated by an ETC (emission from a toroidal coil system) wave field, and the difference in physical stamina between irradiated (3mA, 5mA) and control (unirradiated) groups was examined. The change of the feed quantity caused a clear change in the rectal temperature of the mice on the condition that the quantity was insufficient. The immobile time showed a clear tendency to increase as the rectal temperature fell, and reached the maximal value on the eleventh day, when the rectal temperature was the lowest. The 5-minute irradiation in this study did not cause any significant difference among the mean values of the immobile time of the three groups. These results in addition to those of our previous report led to a conclusion that the irradiation time necessary to improve the stamina of physically weakened mice was at least ten minutes. Current (hence emission intensity) dependency of the influence of irradiation was not clarified, because the irradiation time was not long enough. ETC irradiation raised the rectal temperature of live mice, but did not cause any change in that of a dead mouse. This meant that it affected the autonomic nervous system of the mice.
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Takashi AOKI, Takashi Fujii, Yoshinori ADACHI
Article type: Article
2003Volume 21Issue 1 Pages
146-150
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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As a fundamental study to develop a lavender fragrance detector, changes in electronic characteristics (impedance Z and resonant frequency f) of a quartz resonator for exposure to lavender fragrance were determined. The surface of the resonator was coated by japan (urushi) as a film adsorbing lavender fragrance molecules. The maximum value of the impedance change rate &Irtri;Z/Z of the resonator was 4.5 × 10^<-2> when it was exposed to air saturated in lavender fragrance molecules. On the other hand, the maximum frequency change rate &Irtri;f/f was considered to be smaller than 2.8 × 10^<-7>. The experiment result suggested that using the impedance change, rather than the frequency change, of the quartz resonator could lead to the lavender fragrance detector.
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Shinji NISHIMOTO
Article type: Article
2003Volume 21Issue 1 Pages
151-158
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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In Europe and America, wider options have become available in both alternative and complementary medicines and the ratio of patients who take these treatments to those who take conventional medicine is increasing. On the other hand, in Japan, treatment based on Western medicine is still more popular, and surgery, medication, radiotherapy, etc. are usually the first choice. This time, we will report on two cases where, by healing with energy-irradiated waters, rock crystal, etc. as alternative and complementary therapies, symptoms disappeared first and then tumors disappeared without any surgical treatment employed. Last time, we reported on cases where pains were relieved, focusing on changes in brain waves and Qi current, while this time, we discuss why such a big improvement as the disappearance of tumors was achieved.
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Tsuneo WATANABE
Article type: Article
2003Volume 21Issue 1 Pages
159-165
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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The occurrence of lucid dreaming (dreaming while being conscious that one is dreaming) has been verified for 4 selected subjects who signaled that they knew they were dreaming. The signals consisted of particular dream actions having observable concomitants and were performed in accordance with a presleep agreement. Two of the subjects signaled successfully during REM sleep, and the others during stage 1. To know what the psychological conditions for the occurrence of lucid dreaming are, a questionnaire on lucid dreams was made and given to college students at the same time Eysenck Personality Questionnaire and Sugawara's Self-consciousness Scale. There was no significant relationship between the lucid dream experience frequency and the personality characteristics, whereas lucid dreamers had significantly higher scores than non-lucid dreamers on the "private self-consciousness subscale", but not on the "public self-consciousness subscale". This result suggests that most people may have a capacity to have a lucid dream, despite their differences of personality, through some appropriate way of training to reinforce their private self-consciousness in their daily life.
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Yuzo HIGUCHI, Yoshitusgu HAYASHI, Xiang Yong ZHANG, Hironobu HIGUCHI
Article type: Article
2003Volume 21Issue 1 Pages
166-169
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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With the help of a famous Chinese qigong master, Xiang Yong Zhang, a video recording was made for the interaction between a sender and a receiver in remote qi emission for analysis. The sender remotely emitted qi from a park in Shenyang City, China for 30 minutes to a receiver located in a hotel room in the same city approximately 35 km away. When the master started to emit qi, the receiver did not react at all, but at 7 minutes and 20 seconds after the start of remote qi emission, the right fingers began to move, and at 10 minutes after the start of remote qi emission, the right hand began to rotate. Next, the right leg began to move, and the left leg started to vibrate violently at the same time. Even when the master stopped emitting qi, the vibration persisted, not stopping until 10 minutes and 30 seconds after discontinuation of the remote qi emission. Therefore, the receiver received some type of information through remote qiemission, and this information persisted for some time in the receiver.
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Akira FUKUOKA, Yuko KOYAMA, Hiroshi FUKUOKA, Eriko UEDA, Mitsuyoshi YA ...
Article type: Article
2003Volume 21Issue 1 Pages
170-175
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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[Objective] We report three cases in which tumor reduction was observed through active, concomitant use of CAM including Ki Therapy. [CaseI] A. F. 76 Years 0ld ♂ Dentist, colonic tumor, no subjective symptoms. Resonance of tumor in descending colon was found through B. D. ORT. Endoscopic examination and histological tissue examination acknowledged a Tubular Adenoma (Group 3) of about 2.5cm in the same area. Later, after approximately two months of concomitant use of CAM including Ki Therapy, tumor size was reduced to about 1cm making endoscopic excision possible. [Case II] M. Y. 59 Years Old ♂ Doctor, metastatic intrahepatic tumor, complained of defecation abnormality and weight loss. Through endoscopic examination and diagnostic imaging, a malignant tumor (Class V) in the large intestine and metastasis to the liver, respectively, were acknowledged. After excision of tumor in large intestine, chemotherapy was applied for approximately nine months. Following that, Ki Therapy was concomitantly used. A tendency for the metastatic intrahepatic tumor to decrease in size and become benign was acknowledged through diagnostic imaging. [Case III] T. S. 42 Years Old ♂ White Collar Worker, cerebral aneurysm. Due to sequela of a traffic accident, MRI and cerebral angiography were performed on August 2, 1999 and aneurisms were acknowledged in two locations. Through concomitant use of Ki Therapy, reduction in aneurysms and improvement in blood flow were observed. [Conclusion] From the above, we concluded there was improved progress for the three cases through concomitant use of Ki Therapy.
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Yoshio MACHI, Chao LIU
Article type: Article
2003Volume 21Issue 1 Pages
176-187
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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For this report, we performed an experiment in which Ms. Qiang Wang who has several special abilities wrote letters on a sheet of paper that had been placed beforehand in a black paper envelope. She was able to write the letters without touching the envelope. That is to say, after she thought of some letters in her mind, she could write on the sheet of paper inside the envelope. We made physiological and physical measurements. Such a phenomenon cannot be explained using ordinary common sense and we did this experiment many times, gradually making it more complicated each time. We made physical measurements to record writing pen pressure on the paper, but we cannot explain how she was successful yet. We examined the physiological and physical situations. We found what kind of phenomena existed in the letter. We found that she controlled her respiration by herself and also her autonomous nerve system. A strong EEG voltage was seen at her right frontal lob and the right parietal lob which was larger than usual. At the time we thought that she was able to carry out the phenomenon in her mind, the EEG potential suddenly rose. This was when she wrote the letters on the paper.
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Mikio YAMAMOTO, Hideyuki KOKUBO, Hideo YOICHI, Kimiko KAWANO
Article type: Article
2003Volume 21Issue 1 Pages
188-196
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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The authors visited Moscow from November 11th to 20th, 2002 for discussions with Russian researchers and attendance at a conference and seminar. In research on anomalous phenomena, academic interchanges between Japan and Russia have not been active. Russian research has many unique ideas and interesting approaches. Research communication and collaboration with Russia should be developed to improve Japanese studies.
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Taihoe KOO, Sanghoon SHIN, Gilwon YOON, Hanseo KOO, Mignon PARK
Article type: Article
2003Volume 21Issue 1 Pages
197-200
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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A comparative study was conducted on two groups of adults (31 persons) to determine whether or not exposing human bodies to a magnetic field changes their body temperature in a statistically meaningful way. In a room with a constant temperature (below 25 deg Celsius), N pole and S pole of permanent magnets (2000 Gauss) were applied to the LU-7 and LU-9 of the right wrist respectively for subjects in the magnet group, whereas placebo magnets were used with the control group. 25 minutes after magnet application, 80% of the control group showed a decrease by 0.5 deg Celsius, while 48% of the magnet group did in the temperatures of their feet. And 12% of the magnet group indicated an increase by 0.5 deg Celsius whereas no control subjects showed any temperature difference over 0.5 deg Celsius.
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Takeo OKU
Article type: Article
2003Volume 21Issue 1 Pages
201-208
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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The purpose of the present work was to investigate a mechanism of precognition from the viewpoint of the theory of relativity, quantum theory and the uncertainty principle. Since the mechanism of human consciousness has not been clarified in modern science, a conscious field with consciousness was assumed in the present work. This conscious field moves to a future time and space with the velocity of light, and perceives future phenomena. After that, the conscious field goes back to the past through a minute wormhole kept by negative energy. The conscious field is not a material consisting of atoms, but minute waves with a certain particular super-high frequency, and therefore, it can pass through the wormhole. The precognition mechanism will become clearer with completion of the quantum gravity theory that harmonizes time and space.
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Takeo OKU
Article type: Article
2003Volume 21Issue 1 Pages
209-214
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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The purpose of the present work was to investigate a mechanism of life energy from the viewpoint of the theory of relativity. Human beings have an ultra-complicated living-body system of Atomaterials that are highly harmonized atomic materials, and their self-organized existences show negative entropic characteristics. In the present work, two models for human life-energy were proposed. The first was that the life energy is minute waves with a high-frequency v (ν > mc^2/h (l-v^2/c^2)^<1/2>). The second was that the minute waves travel faster than light and belong to negative time and space, and they have negative entropy. Further discussion on the mechanism is expected.
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Yoshihisa KOGA, Masahiro KURITA
Article type: Article
2003Volume 21Issue 1 Pages
215-217
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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Our previous study showed the immediate changes in on eyesight in response to two separate methods, one employing a time-varying magnetic field, and one employing training in free stereo viewing. In the present research, the same changes were reexamined in another group, and, the long-term effects obtained by a combination of both methods was examined. [Method] The subjects were ten adults attending Kurita's eyesight recovery method course trained once a week for 10 weeks. Each subjects received "magnetic irradiation for three minutes to back of the head" (magnetic irradiation) once a week on odd-numbered weeks (weeks 1, 3, 5, 7, 9) and underwent "training in free stereo viewing" (3D viewing) once a week on even-numbered weeks (weeks 2, 4, 6, 8, 10). Eyesight was measured before and after training, and the average value of the eyesight measurements of five weeks was used as data. [Result] The results are shown as average values. The magnetic irradiation resulted in improvement in right and left naked-eye eyesight (without glasses) from 0.40 to 0.51 (difference of 0.11, increase of 28%) and the 3D viewing resulted in improvement from 0.42 to 0.51 (difference of 0.09, increase of 21%). The magnetic irradiation changed the right and left corrected eyesight (with glasses) 1.04 to 1.23 (difference of 0.19, increase of 18%), and the 3D viewing changed it from 1.06 to 1.28 (difference of 0.22, increase of 21%). No significant differences were seen between the magnetic irradiation and 3D training in the degrees of increase brought about in the naked-eye eyesight and corrected eyesight. The long-term effects of ten weeks were as follows. Right and left naked-eye eyesight changed from 0.18 to 0.66 (difference of 0.36), for an average increase of 2.36 times (increase of 2.18 between the two average values). Right and left corrected eyesight changed from 0.78 to 1.71 (difference of 0.92), for an average increase of 2.25 times (increase of 2.19 times between the two average values). [Assessment] Both the magnetic irradiation and the 3D training had an immediate effect of eyesight improvement, and there was no significant difference between the efficacies of these methods. The results also suggested that a long-term effect on eyesight can be expected in using both methods for ten weeks.
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Akiyoshi OSHIMA
Article type: Article
2003Volume 21Issue 1 Pages
218-230
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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This is the sixth report to this society about the results of the experiments conducted under the abovementioned theme. Quantitative measurement of business performance and α-waves have been conducted since 1995, resulting in various findings. This time, previous findings were reorganized in consideration of the following questions : 1) What are factors to enhance business performance? 2) What are factors to increase α-waves? 3) What are future research themes? The effectiveness of setting daily targets to enhance business performance was also examined through experiments.
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Kiyoko SHIRAI, Yoshitake YAMAMOTO, Hiroyuki OKUDA
Article type: Article
2003Volume 21Issue 1 Pages
231-239
Published: March 01, 2003
Released on J-STAGE: May 01, 2019
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Electrodermal activity (EDA) is well known as sensing emotional activity and autonomous nerve activity easily. There are skin resistance change (SRC), skin impedance change (SIC) and skin potential activity (SPA) for measurement of EDA. SPA which consists of skin potential level (SPL) and skin potential reflex (SPR) has been used well in recent years. However, there are various kinds of patterns in SPR, and not enough is known about the formative mechanism of SPA. Then, we had examined these things. In the case of measurement of SPL, we require a rigid standard electrode accompanied by removing of stratum corneum. Since this treatment is accompanied by some pain to subjects, inadequate removing of the stratum corneum will tend to bring uncertainty of measurement result. Therefore, if the relationship between the degree of fall of SIL and fall of SPL accompanied by removing of stratum corneum are clarified, and sufficient removing for construction of standard electrode is checked by impedance, this approach is reasonable. Then we proposed the method. Furthermore, by the relation with environmental temperature, EDA measurements in various body surface parts were performed, and the relevance of thermal perspiration and mental perspiration was considered.
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