Japanese Journal of Biofeedback Research
Online ISSN : 2432-3888
Print ISSN : 0386-1856
Volume 45 , Issue 1
Showing 1-7 articles out of 7 articles from the selected issue
Special Workshop
  • Tadanori TEZUKA, Tsuyoshi NAKAMURA
    2018 Volume 45 Issue 1 Pages 3-9
    Published: 2018
    Released: October 31, 2018

      We have developing contactless vital sensing technology utilizing camera. In this technology, the camera captures slight changes of face color and estimates the hear trate with these changes. Furthermore, the tablet PC based heart rate variability biofeedback system realizes monitoring heart rate with camera and displaying feedback results on its screen without external options. In this report, we describe our contactless vital sensing technology and show the biofeedback system with this technology.

      The content of this paper is the content of a Special Workshop on “Contactless Vital Sensing Technology using video imaging and its applications.” held during the 45th Annual Meeting, Japanese Society of Biofeedback Research, and some additions and corrections have been made.

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  • —Enhance the Resilience and Biofeedback—
    Yuko SHIDA, Yukinori KITA, Dawood Shiaa
    2018 Volume 45 Issue 1 Pages 11-17
    Published: 2018
    Released: October 31, 2018

      Thought Technology is the world's leading biofeedback, neurofeedback and psychophysiological instrument manufacturer. Our instrumentation monitors, records and analyzes a wide variety of physiological/mechanical signals providing feedback in real time to promote self-regulation/conditioning. Our presentation will cover the history and products offered by the company as well as a demonstration of our new eVu-TPS, the first in our new line of wireless sensors used with mobile devices.

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  • —The Growth of Integrative Medicine and the New Precision Medicine and Lifestyle Medicine Movements in the U.S.
    Tamami SHIRAI
    2018 Volume 45 Issue 1 Pages 19-23
    Published: 2018
    Released: October 31, 2018

      Western medicine is not sufficient to sustain people's optimal health and community health. Over the past 20 years U.S. medicine has experienced three new movements. First, patients' need to maximize their healing has accelerated the growth of integrative medicine, secondly, the U.S. government has focused on precision medicine with the goal of providing better treatments for cancer patients. Finally, the urgent crisis of rapidly expanding non-communicable disease has forced physicians and healthcare professionals to begin providing a cost-effective preventive approach, lifestyle medicine. This article summarizes the growth of these three related fields — integrative, precision, and lifestyle medicine — in U.S. medicine and discusses practical steps for integrating them in the conventional medicine.

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Original Article
  • Shingo IMAGAWA, Sayaka MATSUMOTO, Haruo SAKUMA
    2018 Volume 45 Issue 1 Pages 25-32
    Published: 2018
    Released: October 31, 2018

      Self-talk has been used in various situations as a technique of self-conditioning. The important effects of this technique on anxiety, self-confidence, and task performance have been reported in previous studies. However, the effects of self-talk have mostly been evaluated based on subjective reports, and the mechanism has not been elucidated. The purpose of this study was to examine the psychophysiological effects of positive and negative self-talk, using electroencephalogram (EEG). The participants in this experiment were young males. EEGs were obtained from the participants during a positive or negative self-talk condition, and when they were resting. The EEG recordings were Fourier transformed and estimates of the total power, and the relative power in the theta, alpha, and beta bands were calculated. The theta ratio of right central area was larger in the rest condition than in both of the self-talk conditions. The alpha ratio of left frontal and central areas was smaller in the positive self-talk condition than in the negative self-talk and rest conditions. The beta ratio of mid-central, right central and right parietal areas in the positive self-talk condition was larger than that in the rest condition. These results indicate that positive self-talk may stimulate brain activity and bring about the appropriate arousal level by influencing the activities of the right frontal area related fatigue suppression and the central areas related to motor command. The findings of the present study suggest that the use of positive self-talk evoked the occurrence of pleasant emotions by directing the brain to an appropriate arousal level and that positive self-talk could possibly improve task performance. Furthermore, the effect of mental training, such as self-talk, could be evaluated more objectively in this study than in previous studies, using EEG.

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Short Report
  • Masahiro SAKAI
    2018 Volume 45 Issue 1 Pages 33-40
    Published: 2018
    Released: October 31, 2018

      Pupil diameter is known to be fluctuated by respiration as well as heart rate, and to be correlated to physiological and psychological state in human. Paying attention to this, we have proposed a new biofeedback training utilizing respiratory pupil-diameter fluctuation. Pupil diameters of subjects are measured by an eye-mark recorder and the values are feed-backed to the subjects. Along with the feedback, in the first step, ask the subject to control his/her own pupil diameters by his/her respiration voluntarily. In the next step, ask the subject to breathe coincidently to flushing of the LED arrays to evoke his/her convergence reflex to confirm whether the synchronization training between pupil diameter and respiration can be achieved or not. As results, by the feedback, pupil dimeters can be controlled partly by respiration and synchronization between pupil diameter and respiration can be achieved. For our future development, statistical study with a larger number of subjects should be scheduled both in physiological and psychological aspects.

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BF Lecture