• Title, Summary, Keyword: Brain Wave

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Development of Efficient Encryption Scheme on Brain-Waves Using Five Phase Chaos Maps

  • Kim, Jung-Sook;Chung, Jang-Young
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • v.16 no.1
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    • pp.59-63
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    • 2016
  • Secondary damage to the user is a problem in biometrics. A brain-wave has no shape and a malicious user may not cause secondary damage to a user. However, if user sends brain-wave signals to an authentication system using a network, a malicious user could easily capture the brain-wave signals. Then, the malicious user could access the authentication system using the captured brain-wave signals. In addition, the dataset containing the brain-wave signals is large and the transfer time is long. However, user authentication requires a real-time processing, and an encryption scheme on brain-wave signals is necessary. In this paper, we propose an efficient encryption scheme using a chaos map and adaptive junk data on the brain-wave signals for user authentication. As a result, the encrypted brain-wave signals are produced and the processing time for authentication is reasonable in real-time.

The Effect of Acupuncture on the Brain in Human (자침이 뇌에 미치는 영향)

  • Park Kyoung-Sik
    • Journal of Society of Preventive Korean Medicine
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    • v.4 no.2
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    • pp.214-234
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    • 2000
  • This study was carried to identify whether acupuncture of several acupuncture points can affect the brain and to observe which aspects appear in EEG mapping, using electroencephalography. Those results are as follows ; 1. The pattern of resting computerized EEG map in intact human is appered normal 2. Each Acupuncture in Kwan Weon or Jog Sam Ri meridian points bring about the increase in $\theta,\;\alpha-wave$ activity and at various area of the cerebrium and the decrease in $\delta,\;\beta-wave$ activity. It strands to reason that brain function is elevated On the other hand , synchronous acupuncture bring about the decrease of brain function in view of the decrease of $\delta,\;\theta-wave$ activity at frontal area, and the unstable brain state in view of the increase of $\beta-wave$ activity. 3. Acupuncture in Hyeon Jong meridian point bring about the increase of $\delta,\;\theta-wave$ activity at frontal area and $\beta-wave$ activity at temporal area. From these we deduce that brain function is declined and brain is unstable. Synchronous acupuncture with other meridian points reversly showed that brain function is elevated. 4. Synchronous acupuncture in Kwan Weon , Jog Sam Ri, Hyeon Jong bring about the decrease of the brain function and the unstable brain state, showing the pattern of increased $\delta,\;\theta-wave$ activity at frontal, parietal area, and increased $\beta-wave$ activity at temporal area.

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A Study on Senior Woman's Psychological & Brain Wave Changes through Fashion Design Education (패션디자인 교육을 통한 시니어 여성의 뇌파 및 심리적 변화에 관한 연구)

  • Kim, Eun Hye;Lee, Jin Hwa
    • Fashion & Textile Research Journal
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    • v.19 no.1
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    • pp.40-48
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    • 2017
  • In this study, the impact of the fashion design education on the brain wave and the psychological change of the senior females and its change was intended to analyze. 16 senior females were selected as a subject and the brain wave and the psychology were analyzed before and after the educational program of 4 hours a day for total 3 weeks. Out of the brain wave, the increase of alpha wave represents the mental stability and the comfortable state and its decrease represents the tension and stress. On the contrary, the increase of beta wave represents the tension and the excitation. In the brain wave analysis results, the alpha wave was increased and the beta wave was decreased after the design education program, through which it is deemed that the design education would help to increase the psychological stability and to decrease the tension and the stress in the senior females. In the results of analyzing the psychological test, while the test results for 4 senior females were shown as anxious out of 16 senior females, the BAI score was decreased to 'minor anxiety' after the education and the BAI score was decreased except 2 subjects, through it is deemed that the fashion design education would help to reduce the anxiety in the senior females and it seems that it is coincided with the beta wave analysis results.

Development of Smart Brain-Wave Care System based on 3-Tier Client/Server Model (3-Tier 클라이언트/서버 모델 기반 스마트 뇌파케어시스템의 개발)

  • Ahn, Min-Hee;Park, Pyong-Woon;Yang, Hae-Sool
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.10 no.9
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    • pp.2535-2544
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    • 2009
  • The brain-wave research provides relatively various information for brain condition in safety. The counselor or measuree will must easily reduce user TCO about the series of process for the measurement, analysis, and management of brain-wave, and can access to the desired information in real time. While the traditional method for brain-wave process was processed manually by the judgment of a specialist. In this paper the developed system is smart brain-wave care system based on optimizing and combining the 3-Tier client/server by IT with brain-wave technology including BQT. This system was developed in the real-time service with a completely automated process by the conveniently web interface. Our system currently gave a service at the field, and the collected data on DB were provided to researchers for the use of clinical research.

EFFECT ON BRAIN ACTIVITY OF CLOTHING PRESSURE BY WAIST BESTS - Effect of visual Information and Sexual Specificity of Brain Activity -

  • Kamijo, Masayoshi;Wakako, Rina;Hosoya, Satoshi;Nishimatsu, Toyonori;Sadoyama, Tsugutake;Shimizu, Yoshio
    • Proceedings of the Korean Society for Emotion and Sensibility Conference
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    • pp.270-273
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    • 2002
  • The purpose of our study is to clarify about the influence that the visual information gives to the brain activities when pressure exerted the abdomen by waist belts. The visual information means that the some different visual information is inputted it, and the brain activity is evaluated by Electroencephalogram(EEG) measurements. At the same time, we carried out the sensory tests and verified about the relations between the psychological stress and the brain activities. There was a difference in change in the power of the $alpha$ wave with the eyes opened between man and woman. from the result of the sensory test, in the case of under the condition in the darkness with the eyes opened, there was no change in the a wave with before the pressure and after the pressure. In the other cases, $alpha$ wave changed in the same way with before the pressure and after the pressure. In the case of the visible and the invisible in pressure place, $alpha$ wave changed in the same way with before the pressure and after the pressure, but there was a difference in value. From the above, it isn't recognized that the visual information is influencing a pressure sense but some influences are given to it to the brain activities.

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Performance Comparison between Localized and Non-Localized Brain Wave Monitoring Network Topology in the Medical Hospital Area (의료병원구역의 지역화와 비지역화된 뇌파 감시망 토폴로지의 성능비교)

  • Jo, Jun-Mo
    • The Journal of the Korea institute of electronic communication sciences
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    • v.11 no.9
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    • pp.917-922
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    • 2016
  • There are many researches related on the brain wave signals to monitor the state of human health. Especially, some patients in the medical hospital need to be monitored in case of emergencies such as a seizure, an epilepsy and so on. To support QoS of the brain wave network in the hospital is a vital issue and the Opnet simulator is used for this experiment. So the efficient network topology is required for the stability of the brain wave network service. The brain waves of the patients are collected from the sensor devices in the network. Two different sensor network topologies are suggested and simulated for the comparison of the network performance. One topology is localized and the other is non-localized network. The simulation is operated with the Opnet simulator.

Video and Film Rating Algorithm using EEG Response Measurement to Content: Focus on Sexuality

  • Kwon, Mahnwoo
    • Journal of Korea Multimedia Society
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    • v.23 no.7
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    • pp.862-869
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    • 2020
  • This study attempted to analyze human brain responses toward visual content through EEG signals and intended to measure brain wave reactions of different age groups to determine the sexuality level of the media. The experimental stimuli consist of three different video footage (rated ages 12, 15, and 18) to analyze how subjects react in situations where they actually watch sexual content. For measuring and analyzing brain wave reactions, EEG equipment records alpha, beta, and gamma wave responses of the subjects' left and right frontal lobes, temporal lobes, and occipital lobes. The subjects of this study were 28 total and they are divided into two groups. The experiment configures a sexual content classification scale with age or gender as a discriminating variable and brain region-specific response frequencies (left/right, frontal/temporal/occipital, alpha/beta/gamma waves) as independent variables. The experimental results showed the possibility of distinguishing gender and age differences. The apparent differences in brain wave response areas and bands among high school girls, high school boys, and college students are found. Using these brain wave response data, this study explored the potential of developing algorithm for measurement of age-specific responses to sexual content and apply it as a film rating.

Ayurvedic Shiro-Abhyanga and Relaxation of women's stress (아유르베딕 시로아비앙가가 성인여성의 스트레스 완화에 미치는 영향)

  • Choi, Jung-Myung;Choi, Yoon-Jung
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.9 no.6
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    • pp.1800-1805
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    • 2008
  • Shiro-abhyanga is one of treatments of Ayurveda, which is the ancient system of health care and medicine in India. In this essay, I examined the effect of Shiro-abhyanga for relaxing stress of women in twentieth by the means of the brain wave test. The brain wave test showed that Shiro-abhyanga reduced Delta and Theta waves of the left brain but increased $\alpha$, SMR, Low-$\beta$ waves of the right brain. Delta and Theta waves are usually found in sleeping time. Their high measurement in awakening instructs the stress and depressing situations of objects. However the treatment of Shiro-abhyanga made the decrease of Delta and Theta waves and the increase of Alpha wave in working time. Alpha wave appears while objects are comfortable and peaceful from the relaxation of body and mind. Therefore the growth of Alpha wave says that the treatment of Shiro-abhyanga has an effect on mitigation of stress.

A Study on the Brain Waves, Personality and Dietary Behaviors of Taekukkwon Practicianers (태극권 수련자의 뇌파와 성격 및 식습관에 관한 연구)

  • 박현옥;권종숙;송경희
    • The Korean Journal of Food And Nutrition
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    • v.13 no.6
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    • pp.602-610
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    • 2000
  • Taekukkwon was practiced far health previously. The experimental group consisted of undergraduate and graduate students practising in the above disciplines at Myong Ji University. The group consisted of three female and three male students and the aim of this research was to measure the brain wave change for opened and closed eyes. The result of this research are as follows. Firstly, when students were subjected to basic open eye brain wave tests, beta-waves displayed for all regions of the brain. In the frontal region fast beta-waves were displayed and in the central region alpha-waves were displayed. Secondly, in the closed eye brain wave tests, the control group displayed beta-waves in some regions and alpha waves in external and internal regions. For all students\` brain-wave patterns, the amplitude of the alpha-wave was low and the frequency was high. In some students theta-waves were displayed. Taekukkwon practice relaxes the mind and body and helps relieve social stress which shows that taichichuan practices is beneficial. Finally, characteristics of the subjects were mostly type A so the personalities of the subjects were fast and aggressive. This research shows a definite link between personality and personal relationships with beta-waves emissions. So, further research is required in the future to investigate this relationship. The subjects consumed too large amount of foods so it was necessary to change their dietary habits taking into consideration on total calories, fats, and protein. It was also necessary to carrying out nutrition education to the students in emphasizing appropriate attitudes in general health and dietary behavior.

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Primary blast waves induced brain dynamics influenced by head orientations

  • Hua, Yi;Wang, Yugang;Gu, Linxia
    • Biomedical Engineering Letters
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    • v.7 no.3
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    • pp.253-259
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    • 2017
  • There is controversy regarding the directional dependence of head responses subjected to blast loading. The goal of this work is to characterize the role of head orientation in the mechanics of blast wave-head interactions as well as the load transmitting to the brain. A three-dimensional human head model with anatomical details was reconstructed from computed tomography images. Three different head orientations with respect to the oncoming blast wave, i.e., front-on with head facing blast, back-on with head facing away from blast, and side-on with right side exposed to blast, were considered. The reflected pressure at the blast wave-head interface positively correlated with the skull curvature. It is evidenced by the maximum reflected pressure occurring at the eye socket with the largest curvature on the skull. The reflected pressure pattern along with the local skull areas could further influence the intracranial pressure distributions within the brain. We did find out that the maximum coup pressure of 1.031 MPa in the side-on case as well as the maximum contrecoup pressure of -0.124 MPa in the back-on case. Moreover, the maximum principal strain (MPS) was also monitored due to its indication to diffuse brain injury. It was observed that the peak MPS located in the frontal cortex region regardless of the head orientation. However, the local peak MPS within each individual function region of the brain depended on the head orientation. The detailed interactions between blast wave and head orientations provided insights for evaluating the brain dynamics, as well as biomechanical factors leading to traumatic brain injury.