체질분류에 기초한 감성공학

김원식,이용호,박찬복 한국정신과학학회 1999 韓國精神科學學會誌 Vol.3 No.2

지구환경의 영향에 의존하여 특정되어 가는 인간의 기질을 고찰하였고, 이러한 기질의 차이에 따라 동일한 제품 환경에 대하여도 서로 다른 감성을 느끼게 됨을 추론하였으며 체질론에 기초하여 체질에 기질이 가장 잘 반영되어있다고 유추할 수 있어서 각 체질에 적합한 제품·환경 설계를 위하여 과학적인 채질 분류와 모델을 제안하였다. A person’s temper is characterized by the influence of his(her) earth environment- Depending on the various tempers, different human sensibilities can be evoked from the same manufactured goods. Based on the hypothesis of habitude in which the temper is related intimately, we suggested a model of classifying habitudes In order to design a product which can be compatible with the habitude of its user.

인간-제품 적합성 평가를 위한 氣흐름 테스트 장치 설계

김원식,김철중 한국정신과학학회 1999 韓國精神科學學會誌 Vol.3 No.2

행동인체운동역학에 기초하여 외척자극에 의한 흉선의 氣흐름 제어력 변화를 이용한 인체와 제품환경의 적합성을 테스트할 수 있는 장치를 설계하고 그 테스트 방법을 기술하였으며 예측되는 제품 환경의 인체적합성과 감성유발 결과를 파동론에 기초하여 해석하였다. In this study, behavioral kinesiology(BK) was applied to draw a life energy flow tester which employs the hypothesis of thymus gland’s control1ability depending on the external factors surrounding human body. In Order to evaluate the human-product compatibility(HPC) with this apparatus, the required procedure was described. The expected results of testing the HPC and the evoked human sensibility were analyzed based on the wave theory.

TLD를 이용한 X-선 수중 흡수선량 측정 및 해석

오장진,전재식,하석호,김원식,황선태 대한방사선 방어학회 1988 방사선방어학회지 Vol.13 No.2

LiF : PTEE를 사용하여 중경 X-선(HVL : 0.29, 0.84, 1.60, 2.62mmCu)영역에 대한 수중 흡수선량을 측정 해석하였다. 이때 선량계(0.4mm × Φ12.5mm, hot-pressed LiF TLD-700)는 루사이트로 둘러 싸여 있고 물의 흡수선량은 각각의 TL출력 값에 Burlin의 공동이론을 적용하여 해석하였다. 그 결과 물 팬텀 속 깊이 5㎝에서 흡수선량률의 측정 오차는 최대 ±5%로 나타났다. 이 측정값을 측정 오차가 ±2%의 간접절대측정방법인 이온화법에 의한 측정값과 비교한 결과 두 값의 차이는 LiF : PTFE의 측정오차 범위 내에서 일치하였다. 이와 같은 결과로 LiF : PTFE를 이용한 수중 흡수선량 측정의 신뢰성을 확인할 수 있게 되었으며 이는 중경 X-선 영역에 대한 선량당량 평가의 근거로 활용 될 수 있을 것이다. Absorbed dose in water was analyzed by Burlin's general cavity theory for medium X-ray energy region (HVL : 0.29, 0.84, 1.60, 2.62mm Cu) using LiF : PTFE TL dosimeter(0.4mm x Φ 12.5mm, hot-pressed LiF TLD-700) which was enclosed in Lucite capsule. The absorbed dose rate at 5㎝ depth in water phantom was determined with measurement error of ±5%. This result was compared to that of the ionization method, indirectly absolute measurement method, of which measurement error of ±2%. The difference between these two results lies within measurement error of LiF : PTFE method. Therefore, the absorbed dose in water obtained by LiF : PTFE is reliable, and this result suggests the base to estimate dose-equivalent for medium X-rays.

Electroencephalogram as a Reference Data for a Neuromarketing Service in Movie Industry

Wuon-Shik Kim,Sang-Tae Lee,Yaeeun Kim,Hyoung-Min Choi,Jeonggueon Woo 대한인간공학회 2014 대한인간공학회 학술대회논문집 Vol.2014 No.5

Recently, with neuromarketing technology, marketing-relevant human behaviour can be understood. However, it is difficult to measure neurological signals compared to the ease with which subjective review questions can be given. Therefore, many researchers related to movie production want to share neurological signal data. Hence, a neuromarketing service which computes the attentional engagement (AE) of moviegoers is necessary and important in movie industry. In addition, to ensure the quality of the service, it is also important to evaluate the reliability of the data. In the present study, to serve as a reference data for neuromarketing in movie industry, we measured the AE of participants as they watched movies. The participants recruited were 12 right-handed students from the University of Tsukuba in Japan. To avoid previous movie experience by the Japanese participants as much as possible, we played the American movie Iron Man, which was considered to be a typical American ‘superhero’ movie. The procedure of the experiment consisted of three sessions. The first session was done to measure the EEG of the participants during a five-minute baseline state. The second session sought to measure EEG from participants while they watched the movie, and this session took approximately two hours. The third session, which took place after the movie, evaluated how the participants felt while watching the movie. We found a significant decrease in the EEG power in the low-alpha-frequency band while the participants watched film content which evokes subjective higher AE due to subjective higher excitement. To use our results as reference data for a neuromarketing service which computes the AE of moviegoers, we established a procedure with criteria which evaluate the quality level of data. In conclusion, film content evoking high AE with excitement will reduce the low-alpha-frequency band of the EEG power significantly. According to the procedure with criteria for evaluating the reliability of data, as suggested in the present study, the EEG power values with the uncertainty which is traceable to a national standard can be used as validated reference data for a neuromarketing service which computes the AE of moviegoers while watching the American movie Iron Man.

Effects of Three Recumbent Postures on Autonomic Nervous System in Patients with Coronary Artery Disease

Kim, Wuon-Shik,Hwang, In-Kyoung,Choi, Hyoung-Min Biomedical Engineering Society for Circulation 2005 International Journal of Vascular Biomedical Engin Vol.3 No.2

Because patients with coronary artery disease (CAD) have depressed vagal modulation and the mortality risk from acute myocardial infarction is lower in patients with higher vagal modulation, methods that can increase vagal modulation are desirable in patients with CAD. We intended to inspect the effect of recumbent posture on vagal modulation. By using angiography, 33 patients with abnormal (CAD group) and 33 patients with normal coronary arteries (control group) were studied. The nonlinear as well as the linear characteristics of heart rate variability (HRV) were analyzed on these patients in three recumbent postures: namely, the supine, right lateral decubitus, and left lateral decubitus postures. The lower the normalized high-frequency power (nHF) in the supine or left lateral decubitus posture, the higher the increase in the nHF when the posture was changed from supine or left lateral decubitus to right lateral decubitus in both groups of patients. Right lateral decubitus posture can lead to the highest vagal modulation and the lowest sympathetic modulation among the three recumbent postures in both normal and patients with CAD. Therefore, the right lateral decubitus posture can be used as an effective physiologic vagal enhancer in patients with CAD.

Electroencephalogram as a Reference Data for a Neuromarketing Service in Movie Industry

( Wuon Shik Kim ),( Sung Tae Lee ),( Yaeeun Kim ),( Hyoung Min Choi ),( Jeonggueon Woo ) 한국감성과학회 2014 춘계학술대회 Vol.2014 No.-

Recently, with neuromarketing technology, marketing-relevant human behaviour can be understood. However, it is difficult to measure neurological signals compared to the ease with which subjective review questions can be given. Therefore, many researchers related to movie production want to share neurological signal data. Hence, a neuromarketing service which computes the attentional engagement (AE) of moviegoers is necessary and important in movie industry. In addition, to ensure the quality of the service, it is also important to evaluate the reliability of the data. In the present study, to serve as a reference data for neuromarketing in movie industry, we measured the AE of participants as they watched movies. The participants recruited were 12 right-handed students from the University of Tsukuba in Japan. To avoid previous movie experience by the Japanese participants as much as possible, we played the American movie Iron Man, which was considered to be a typical American ``superhero`` movie. The procedure of the experiment consisted of three sessions.

Measurement and Clinical Analysis of Carotid Intima, Media and Intima-Media Thickness

Kim, Wuon-Shik,Jeong, Hwan-Taek,Bae, Jang-Ho Biomedical Engineering Society for Circulation 2005 International Journal of Vascular Biomedical Engin Vol.3 No.1

Individual clinical significance of each layer of CCA (common carotid artery) has not been well studied. We intended to measure the intima thickness (IT), media thickness (MT), and intima-media thickness (IMT) of CCA separately and tried to analyze the clinical significance. One hundred fifty one consecutive patients (mean age: $57{\pm}15$ years; 77 males, 74 females) underwent CCA scanning using high-resolution ultrasound. The images were off-line analyzed using B-mode ultrasound image processing, devised for individual measurement of IT and MT as well as IMT. The mean coefficients of variation of new method measuring IT, MT, and IMT separately were 0.16% for IMT and 0.21% for both IT and MT. The IT (p < 0.01), MT (p < 0.01) as well as IMT (p < 0.001) of patients with atherosclerotic disease were significantly thicker than that of the patients without atherosclerotic disease. Patients with hypertension showed significantly thicker IT (p < 0.01), MT (p < 0.001), and IMT (p < 0.001) than that of the patients without hypertension. However, only IT was thicker in patients with smoking (p<0.01) than that of the patients without smoking.

Influence of Atherosclerosis Risk Factors on Carotid Intima, Media, and Intima-Media thickness

Kim, Wuon-Shik,Bae, Jang-Ho,Jin, Seung-Hyun,Park, Yong-Ki,Noh, Gi-Yong,Hwang, Jae-Ho Biomedical Engineering Society for Circulation 2006 International Journal of Vascular Biomedical Engin Vol.4 No.2

We intended to measure the IT, MT, and the IMT of carotid artery separately and tried to analyze the clinical significance. Two hundred and fifty consecutive patients (125 males, 125 females) underwent carotid artery scanning using high-resolution ultrasound. The images were off-line analyzed using B-mode ultrasound image processing, devised in our research. We measured the IT, MT, and IMT semi-automatically at the far wall of designated 1cm length of the right common carotid and calculated the average values over the 200 points. The IT (p < 0.05), MT (p < 0.05) as well as IMT (p < 0.01) of patients with atherosclerotic disease were significantly thicker than that of the patients without atherosclerotic disease. Patients with hypertension showed significantly thicker IT (p < 0.05), MT (p < 0.01), and IMT (p < 0.01) than that of the patients without hypertension. However, only IT was thicker in patients with smoking (p < 0.05) than that of the patients without smoking. Smoking was associated only with intima while hypertension was associated with the all three layer's thickness. This result suggests the atherosclerotic process can be different by cardiovascular risk factors.

Affective Computing (Emotion AI) based on Biomedical Signals

( Wuon Shik Kim ) 한국감성과학회 2021 추계학술대회 Vol.2021 No.0

The affect induced while suppressing tics in Tic disorders (Tourette syndrome): Case Report

( Wuon-shik Kim ),( Jeonggueon Woo ),( Kyoung Min Kim ),( Ilju Lee ) 한국감성과학회 2021 한국감성과학회 국제학술대회(ICES) Vol.2021 No.-

The present study aimed to find the influence of the voluntarily tic suppression on the affect for children suffering from tic disorders. To observe the influence of tic suppression on the affect for children with tic disorders, we measured 32 channels of electroencephalogram (EEG) by using Computerized 40 Channel QEEG System for nineyear- old boy with tic disorders at right arm. The experiment consists of suppression and spontaneous tic sessions, approximately 5 minutes for each session. The channels analyzed were F3 F8 P4 on 10- 10 electrode placement system. Paired samples t-test showed significant difference between suppress and spontaneous sessions for indices of positive affect calculated from reverse of power in alpha band (1/Alpha), power in spectral peak of alpha band (1/Alpha-SP), from power ratios of all/Alpha and all/Alpha-SP, respectively. This results explain that the participant felt more negative affect during suppress (vs. spontaneous) session and support previous researches.