• Title/Summary/Keyword: cognitive science

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Some Mental Activity Which Can be Discriminated Only on Non-linear Analysis of EEG Measure (비선형 분석을 이용한 정신활동 상태에 따른 EEG의 변화에 관한 연구)

  • Lee, J.M.;Park, C.J.;Lee, Y.R.;Shin, I.S.;Park, K.S.
    • Journal of Biomedical Engineering Research
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    • v.22 no.5
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    • pp.425-430
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    • 2001
  • The Purpose of this study was to find the way of discriminating EEG for some mental activity. which are not characterized within linear spectral analysis but with non-linear analysis . We lave investigated the way of characterizing EEG changes during emotional and cognitive states in healthy volunteered subjects who responded to three designed status. in which the subjects were relaxing with ease and eyes closed. listening to music and computing a simple subtraction with eyes closed. Especially, we estimated EEG dimensional complexity by Skinner s Point-wise correlation dimension(PD2) method for each mental states. As a result it has been found that the subjects, who responded that the\ulcorner had concentrated well during the arithmetic task. show higher PD2 in their non-linear EEG measures. in comparison with the subjects who responded that they had not concentrated during the task This highness of PD2 is also significant in statistical analysis. A subject who had the highest score in evaluating the intensity of induced emotion during emotional task shows significantly lower PD2 in statistical analysis than other subjects who had lower scores. Linear spectral analysis was also performed on these data. However, they did not show and significant difference. Only non-linear dynamical analysis shows the significant different result on these mental status.

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AN EXPLORATORY STUDY COMPARING BLOOD METAL CONCENTRATIONS BETWEEN STROKE AND NON-STROKE PATIENTS IN KOREANS

  • Lee, Sun-Dong;Ko, Seong-Gyu;Kim, Rok-Ho;Hu, Howard;Amarasiriwardena, Chitra J.;Park, Hae-Mo
    • Proceedings of the Korean Environmental Health Society Conference
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    • 2005.12a
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    • pp.87-94
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    • 2005
  • Results from previous studies revealed that metal level in the body is related to certain types of diseases. For example. serum copper level with chronic heart failure, iron and transferrin in the blood serum with acute cerebral vascular diseases, Zn in the CNS, lead with neurotoxicity, hypertension, genetic damage, arsenic with cancer skin lesion, Al with neurobehavioral function (cognitive impairment and memory disorder), and etc. The rate of stroke has increased in recent years and several metals were found to be responsible for causing stroke. This study compared several blood metal concentrations between stroke and non-stroke patients. Patients with stroke (116 samples) and non-stroke (111 samples including lowback pain and others) participated in this study. Total of 227 blood samples were collected and participants completed questionnaires regarding age, gender, occupation, residence, alcohol, smoking, and etc. To be qualified into the stroke group, patients have never experienced stroke previously. Subjects only included ischemic stroke and intracerebral hemorrhage patients diagnosed by brain CT and brain MRI. Patients with high risk of metal exposure such as herbal intake and job related exposure were excluded. 10ml of blood samples were analyzed by ICP-MS method at the Center of Nature and Science at Sangji University. Metal geometric mean (SD) concentrations in blood of study subjects showed higher values, 2.64-36.12%, than WHO reference values in Mn, Ni, Hg, Se, and As. Metal concentration in blood of stroke patients non-adjusted for potential confounders was higher except for Hg and also higher except for Ni in adjusted for potential confounders. Co was significantly higher in stroke patients (p=0.002) than non-stroke patients adjusted for potential confounders. Regression coefficient values of stroke patients was 0.17-8.25 in each metals. Odd ratio of stroke patients had 0.96 (Ni)-2.68 (Co) compared to non-stroke cases. This result means that Co increase of 1 raises the risk ratio of stroke by 2.86 times. Based on the results, metal concentration in blood seems to affect incidence of stroke.

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Study on Development of Perception Arts Action Group Counseling Program Focused on Popcorn Brain Phenomenon (팝콘브레인 현상에 대한 지각예술작용 집단상담 프로그램 개발에 관한 연구)

  • Jang, Seung-Young;Jeong, Hyang
    • The Journal of the Korea institute of electronic communication sciences
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    • v.8 no.4
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    • pp.517-526
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    • 2013
  • This thesis revolves around dual sensory therapy techniques using perception arts group counseling program focused on Popcorn Brain phenomenon. The program emphasizes intrinsic motivations for changes by activating the brain's dual sensory such as a sense of smell, tactile sensation and vision to deal with brain issues caused by digital devices addiction. Perception arts group counseling program is based on voluntary satisfaction of relationship desires, which can lead to a sense of accomplishment and belonging. Expression methods using dual sensory were presented as an alternative to resolving digital devices addiction by blending cognitive-behavioral counseling technique and group art therapy technique. The blending method offers an environment that can maintain a change to a senseless and lackluster brian due to excessive uses of digital devices, the main cause of Popcorn Brain, by emphasizing "thoughts${\rightarrow}$emotions${\rightarrow}$behavior" with a structural expression approach. If perception arts group counseling program is established in more systematic fashion and used strategically to offer such environment, it may be used as a treatment for brain issues described above. In addition, the program can be used a basis for encouraging voluntary treatment to satisfy relationship desires.

A Study on Nutrition Knowledge, Dietary Attitudes and Nutrition Education Needs among Child-Care Teachers (일부 보육교사의 영양지식과 식생활태도 및 영양교육 요구 조사)

  • Choi, Kyung-Suk
    • Korean Journal of Community Nutrition
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    • v.15 no.1
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    • pp.137-148
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    • 2010
  • This study was conducted on 175 child-care teachers, who participated in in-service education, to research the methods to improve child-care teacher's nutrition management capability for infants and children. Investigated results of child-care teachers' nutrition knowledge, dietary attitude status, and needs on nutrition education in child-care centers are as follows: The score of child-care teachers' nutrition knowledge was 10.83 points out of 15, which is about 72%. Total score increased as teachers' age but not significantly different from their career duration, since teachers who have a child-care career less than 5 years acquired 10.91 points, which is higher than 10.64 points of teachers having more than 5 years of child-care career. Teachers' average recognition to the nutrition knowledge was 90.6%, increased significantly by the older they are, and decreased according to the accumulation of their career. The average accuracy of the nutrition knowledge was 79.7%, increased in proportion to the teachers' age. The marks of child-care teachers' dietary attitude were 41.3 points (possible score range 5-50) and 83%, older teachers tended to have more desirable dietary attitude. As indicated by the increment of child-care career, the score of emotional attitude tended to be increased but which of cognitive and behavioral attitude showed a declining tendency. Nutrition information which child-care teachers were mainly interested in were correct selection of food (58.1%), obesity and weight management (52.7%), and nutrient content of food (44.9%). Nutrition education contents which child-care teachers needed were 'nutritious food and menu for child' (72.2%), 'health management of child' (69.2%) and meal management of child (40.2%). Nutrition education methods, which child-care teachers considered as of desirable ones, were cooking class of small scale (31.8%), visiting class at child-care center (26.5%). In consequence, the nutrition knowledge and dietary attitude of child-care teachers were not good and showed different issues by age and career duration. Therefore, it is requisite to intensify nutrition management courses in child-care teachers' qualification and in-service education courses which has actual necessity and suitability based on teachers' age, career, and the type of child-care center, and to disseminate these through public health centers and child-care & education information centers to pursue the efficient balance of nutrition education programs.

Segmenting Korean Millennial Consumers of Sharing Economy Services on Social Networking: A Psychographic-based Approach (소셜 네트워크 기반 공유경제 서비스에 관한 밀레니얼스 소비자 세분화 연구: 사이코그래픽 관점에서)

  • Lee, Jae Heon;Choi, Jae Won;Kim, Ki Youn
    • Journal of Internet Computing and Services
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    • v.16 no.6
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    • pp.109-121
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    • 2015
  • The purpose of this qualitative study is to explore consumer behavioral trends, psychological characteristics and various cognitive types of Millennial Generation consumers, primarily in their 20s, who are familiar with sharing economy services based on the emerging social networking technology. Using Q methodology, this paper theoretically defines four and interprets via a social science perspective four different types of these young consumers who are skilled at state-of-the-art ICT equipment, devices or online networking services. Sharing economy services in Korea's academic and industrial services are influenced by government policy, and related research is relatively new. This study is focused on discovering unique psychographic characteristics called 'schemata' that include personal interest, preference, attitude, and opinion. On the basis of 40 Q-sorted data samples, the analysis examined 180 collected statements from meta-studies and interviews with 35 individuals born between 1997 and 1992. As a result, four consumer groups were identifies: Type 1 'Early majority', Type 2 'Laggard', Type 3 'Opinion leader', and Type 4 'Late majority'. The results of this research can be used to explore to study in greater detail the behavior and psychological aspects of Millennial General consumers'.

Acupuncture Expands the Boundary of Mind-Body Medicine (침술이 심신의학의 지평을 확장하다)

  • Kim, Jae-Hyo
    • Korean Journal of Acupuncture
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    • v.33 no.3
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    • pp.139-147
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    • 2016
  • Purpose : The acupuncture existed more than 2000 years and has flourished not only in Asia but also in medical field of modern world. In addition, empirical evidences from biomedicine have been expended in many ways in order to objectify the field of acupuncture. Thus, the effect and mechanism of the acupuncture has been revealed in human and other animals. In this article, I attempt to explain what doctors and patients subjectively experience through acupuncture treatment and its clinical significance based on mind-body medicine. Methods : The experience and clinical significance of the acupuncture was examined in the view of mind-body medicine, also reviewed research trends related to meditation understanding the clinical effectiveness of acupuncture. Results and Conclusions : Traditional Korean medical doctor perceive generally "jogi " and "chishin " meaning the regulation of the balance of the various functions in the human body and patient's consciousness and psychology state as mightily important concept concerning the therapeutic effect of acupuncture. Despite scientific approach to objective understanding of the acupuncture was performed in the meantime, practitioners put emphasis on experience based on sensate and interaction between doctor-patient. As it reflects the recent understanding of the psychological effects associated with the clinical efficacy of acupuncture, it has been presented one by one through neuroscience and cognitive science. Therefore it is important that interpreting the clinical effectiveness of acupuncture into Mind-body medicine can form a new awareness and attitudes toward traditional medicine.

Effect of Color and Emotional Context on Processing Emotional Information of Biological Motion (색과 정서적 맥락이 생물형운동의 정서정보처리에 미치는 영향)

  • Kim, Jejoong;Kim, Yuri;Jo, Eunui
    • Science of Emotion and Sensibility
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    • v.23 no.3
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    • pp.63-78
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    • 2020
  • It is crucial to process not only social cognitive information but also various emotional information for appropriate social interaction in everyday life. The processing of emotions embedded in social stimuli is affected by various context and external factors and the features of their own. Emotion discrimination tasks using point-light biological motion were conducted in this study to understand the factors influencing emotion processing and their effects. A target biological motion with angry or happy emotion was presented in the first task in red, green, white, or yellow color. A white angry, happy, or neutral "cue" biological motion was displayed simultaneously. Participants judged the emotion of the target relative to the cue stimulus by comparing the target with the cue. The second task used only emotionally neutral stimuli to find effect by the color itself. The results indicated an association between the specific color of the target and emotion. Red facilitated processing anger, whereas green appeared to facilitate happy emotion. The discrimination accuracy was high when the emotions of the cue and the target were identical in general, but the combination of red color and anger yielded different results compared with the rest of the conditions. Some illusory emotional responses associated with the target colors were observed in the second task. We could observe the effects of external factors in this study, affecting the emotional processing using biological motion rather than conventional face stimuli. Possible follow-up studies and clinical research were discussed.

A Study on the Problems in the Use of CCTV by the Police and Some Proposals (경찰CCTV 운용상의 문제점과 개선방안)

  • Lee, Sang-Won;Lee, Seung-Chal
    • Korean Security Journal
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    • no.10
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    • pp.215-242
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    • 2005
  • As CCTV can be an effective tool to prevent or suppress crime at low cost, they have been widesoread in developed countries. In spite of their effectiveness, they infringe some constitutional rights such as the right to privacy, the right of likeness and the right to control over personal information. The police and ward offices install CCTV in public areas to prevent crimes without a legal basis or standard. When information obtained in such a way is used as investigation data for the police or as an evidence in a court, it can cause serious trouble. To solve this problem, legal restriction on the installation of CCTV as should be clearer. Since current laws on public agencies' protection of personal information are too general, they are not effective enough to protect personal information. Therefore, Personal Information Protection Organic Act should be enacted to make a legal basis for protecting comprehensive personal information. It should be obvious who installs CCTVs, who pay for the cost and how they are managed. Before installation, the police and ward offices should obtain residents' consent through a public hearing or voting (on the range and purpose of installation), or conduct an impact assessment. During installation, CCTVs should be limited to prevent or suppress crimes, keep public order and void dangers. In case of making a sign of installation, it must specify its rights. After installation(operation/management phase), they should abide by principles of information protection and try not to infringe constitutional right. In the cognitive aspect, the police should constitutional rights must be secured although it is important to carry out their missions. The police should serve citizens and change to the police of communities. Citizens should understand that constitutional right can be infringed if public order is not maintained. When citizens cooperate with the police, they fear of crimes will decrease.

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Effects of the Participation Style of Martial Art Classes in Students Majoring in Guard on Both Major Satisfaction and Adapt to School Life (경호 전공 대학생의 무도학습 참여양식이 전공만족도 및 대학 생활적응에 미치는 영향)

  • Kwon, Chang-Gi;Han, Sung-Whoon;Kim, Byung-Chan;Choe, Bong-Jun;Lee, Kwon-Ho
    • Korean Security Journal
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    • no.41
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    • pp.97-121
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    • 2014
  • A survey on effects of the participation style of martial art classes in students majoring in guard on both their major satisfaction and adapt to school lie was performed for 285 male and female students. The survey was carried out using a questionnaire on the participation style of martial art classes, degree of major satisfaction, and adapt to school life. Based on the survey, a correlation analysis was implemented to investigate effects of the martial art class participation styles on both major satisfaction and adapt to school life. Then, a multiple regression analysis was also performed. As a result, the sub-elements of the martial art class participation styles, such as the cooperative and participation styles, significantly affect the general satisfaction, class satisfaction, relationship satisfaction, and cognitive satisfaction in the major satisfaction. In the martial art class participation styles, the sub-elements, such as the cooperative, competitive, and participation styles, significantly affect the class, sociality, and adapt to school environments in adapt to school life. The sub-element of the major satisfaction, such as the general satisfaction, significantly affects the adaptations in class, sociality, and school environments in adapt to school life.

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Measuring stress responses using active biotelemetry in cattle II. Fluid administration for reducing transport stress (Active biotelemetry를 이용한 젖소의 스트레스 반응 측정: II. 수송 스트레스 감소를 위한 수액투여 효과)

  • Lee, Su-han;Lee, Byeong-han;Lim, Joa-jin;Kim, Jin-young;Lee, Dong-hee;Kim, Jae-kyung;Choe, Nong-hoon;Jeong, Soon-wuk;Chung, Byung-hyun
    • Korean Journal of Veterinary Research
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    • v.41 no.4
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    • pp.603-609
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    • 2001
  • A transport stress is one of the main causes of economic losses and physiological dysfunction. The present study has been performed to suggest a method to decrease the adverse effects above mentioned from transport. The groups were prepared as follows; (1) Control group : 4 cattle transported for 5 hrs (274 km) without any treatment, (2) Treatment group : 4 cattle treated with electrolyte-mineral solution (I.V.) at 1 hr before the enrollment of transport under same experimental condition with Control group. The blood specimens were collected at 1 hr before transport, 2.3 hrs (135 km) and 5 hrs (274 km) after the enrollment of transport, and 1, 6 and 18 hrs after fulfillment of transport. The collected blood specimens were analyzed for cortisol and epinephrine. Core temperature and heart rate were measured with active biotelemetry in every 30 minutes from 0.5 hr before the start of transport to 18 hrs after the end of transport. In results, the level of cortisol considerably increased to the peak either in Control group ($5.3{\pm}1.3{\mu}g/d{\ell}$) and in Treatment group ($4.0{\pm}2.6{\mu}g/d{\ell}$) at 2.3 hrs in transport. The concentration of epinephrine of Treatment group had been higher than that of Control group from the start of transport to 18 hrs after the fulfillment of transport. Particularly there was the biggest gap between Control and Treatment groups, $424.0{\pm}194.1pg/m{\ell}$ and $209.1{\pm}65.1pg/m{\ell}$ respectively, at 6 hrs after the end of transport. The heart rates were considerably increased either in Control group ($81.5{\pm}18.5$ to $126.3{\pm}7.8beats/min$) and in Treatment group ($114.3{\pm}14.4$ to $140.8{\pm}22.4beats/min$) with the enrollment of transport. These results indicate that the concentration of cortisol and the heart rate were pertinent to cognitive parameters to evaluate physiological responses against stress such as transport. In addition, the intravenous administration of electrolyte-mineral solution could be suggested as the method to decrease the adverse effects from a transport stress.

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