• Proceedings of the KOSOMBE Conference
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• v.1995 no.05
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• pp.195-199
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• 1995

본 연구에서는 피부전기반사를 이용하여 각성도를 측정하기 위한 측정 시스템을 구성하고 이를 이용하여 피부 전기활동의 변화가 뇌파를 동시에 측정하여 각성수준의 변화에 따른 세 측정 요소간의 상관관계를 검토하고 측정에 따른 문제점들을 분석하여 각성도 측정 및 평가와 모니터 개발 을 위한 기초적인 연구를 하였다. 분석 결과 기존의 피부임피던스 만을 이용한 수면상태 판정은 불완전하며 피부임피던스 반사도 포함하면 더욱 정확한 판정을 할 수 있슴을 밝혔다.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2001.05a
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• pp.169-174
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• 2001

정서와 생리 반응간의 관계에 대한 연구는 주로 성인을 대상으로 이루어졌고, 최근에는 아동정서에 대하나 생리반응 연구도 증가하고 있다. 본 연구는 교감신경계의 활성화 지표인 피부전기 반응을 이용하여 아동의 정서를 구분하는데 목적이 있다. 실험참여자들은 남녀 학령 전\ulcorner학령 아동 132명이었다. 다섯 정서를 유발하기 위해 사용한 자극세트는 각 정서를 유발하는데 적합하다고 평가되는 배경음악과 조명 하에서 인형을 통해 들려주는 정서유발이야기로 구성되었다. 정서가 유발되기 전 안정상태와 정서를 경험하는 동안 피부전기활동을 측정하였다. 안정상태에 비해 모든 정서상태에서 피부전기반응이 통계적으로 유의미하게 변화하였다. 다섯 정서간에 피부전기반응의 변인들인, 피부전도수준, 피부전도수준의 수와 피부전도반응의 크기에서 유의미한 차이가 나타났다. 이 결과는 피부전기반응을 이용하여 아동의 정서 구분이 가능함을 시사한다.

• Journal of the Korean Society for Precision Engineering
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• v.18 no.2
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• pp.14-25
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• 2001

• The Journal of the Korea Contents Association
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• v.5 no.6
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• pp.230-237
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• 2005

In this paper, we are suggested a method that's a major topics in sports medicine. It is disease control, control and management of chronic degenerative disease, and promotion of health. We are analyze physical activity to scientific and quantitative a trainee at Wu-Shu gymnasium, for a suggested method. We are measured a quantity of physical activity by SenseWear-PRO2-Armband which develop body-media company. Armband include to skin temperature sensor, near-body temperature sensor, accelerometer, heat flux sensor, galvanic skin response sensor. Acquired data was recorded to storage in Armband. We are analyzed using InnerView Wearer Software in the Stored data to skin temperature, calorie expenditure, quantity of physical activity. The result of this analyzed, we are know that a man of long-term exercise expenditure energy at short time and if liveliness of physical activity was Increase in expenditure energy with increase skin temperature. Also, we are know that the heat flux after increase expenditure energy with increase skin temperature. And, know that GSR was not affected a factors that physical activity, expenditure energy, increase skin temperature, and others.

• Journal of Sensor Science and Technology
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• v.5 no.3
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• pp.55-64
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• 1996

To control arousal level using physiological index, electrodermal activity signal was detected and separated into skin impedance level and response. Arousal state decision and control algorithm was studied to implement and evaluate real time portable arousal control system. The implemented system can detect and control arousal state from initial drowsy state. This system will be applicable to the evaluation of the effect of warning signal, driver's drowsy detecting system, and sleep study.

• 한국공간정보시스템학회:학술대회논문집
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• 2007.06a
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• pp.194-199
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• 2007

최근 차량증가에 따라 교통사고가 날로 증가하고 있고, 안전운전을 위한 보조장치 개발의 필요성이 증대되고 있다. 특히 교통사고 원인중 운전자의 졸음으로 인한 사고가 30%에 달하고 있어 졸음운전 예방장치의 개발이 시급한 실정이다. 이에 본 연구에서는 졸음운전예방을 위한 효율적인 졸음경보 장치시스템을 제안한다. 제안하는 방법은 HRV와 안구활동 신호를 BP(역전파알고리즘)을 이용 보다 더 정확한 측정 및 판단을 행하여 운전자에게 음성경고를 보내주는 방식이다. 제안된 방식은 기존의 연구된 피부전기활동, 영상처리를 이용한 졸음운전 감지 시스템, 심박변동신호 분석 방법보다 훨씬 효율적인 졸음경보를 할 수 있을 것으로 기대된다.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2002.05a
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• pp.71-78
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• 2002

본 연구에서는 아동 성격검사지(Personality Inventory for Children: PIC)의 하위척도 중의 하나인 비행척도 점수가 높은 아동과 낮은 아동의 안정상태 시의 생리반응 특성을 밝히고, 다양한 정서 유발조건에서의 생리반응 변화의 특성을 규명하고자 하였다. 87명의 아동이 실험에 참여하였으며, 아동의 연령범위는 7∼9세였다. 안정상태와 각 정서(기쁨, 분노, 슬픔, 스트레스)를 유발하는 동안에 심전도(Electrocardiogram: ECG)와 피부전기활동(Electrodermal activity: EDA)을 측정하였다. 각 정서 유발자극이 제시된 후, 아동들은 자신이 느낀 정서를 보고하였다. 한국판 아동용 성격검사지에 포함되어 있는 비행척도 문항을 이용해 아동의 비행점수를 계산하였으며, 비행척도 점수가 높은 아동과 낮은 아동을 각각 임의로 12명씩 선정하였다 비행척도 점수가 높은 아동은 비행척도 점수가 낮은 아동에 비해 안정상태에서 피부전도수준(Skin conductance level: SCL)과 심장박동률(Heart rate: HR)이 낮은 것으로 나타났다. 정서를 유발하는 조건에서도 비행척도 점수가 높은 아동은 비행척도 점수가 낮은 아동에 비해 피부전도수준 변화와 심박률 변화가 적었다.

• Science of Emotion and Sensibility
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• v.14 no.4
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• pp.503-512
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• 2011

Recently in HCI research, emotion recognition is one of the core processes to implement emotional intelligence. There are many studies using bio signals in order to recognize human emotions, but it has been done merely for the basic emotions and very few exists for the other emotions. The purpose of present study is to confirm the difference of autonomic nervous system (ANS) response in three emotions (boredom, pain, and surprise). There were totally 217 of participants (male 96, female 121), we presented audio-visual stimulus to induce boredom and surprise, and pressure by using the sphygmomanometer for pain. During presented emotional stimuli, we measured electrodermal activity (EDA), skin temperature (SKT), electrocardiac activity (ECG) and photoplethysmography (PPG), besides; we required them to classify their present emotion and its intensity according to the emotion assessment scale. As the results of emotional stimulus evaluation, emotional stimulus which we used was shown to mean 92.5% of relevance and 5.43 of efficiency; this inferred that each emotional stimulus caused its own emotion quite effectively. When we analyzed the results of the ANS response which had been measured, we ascertained the significant difference between the baseline and emotional state on skin conductance response, SKT, heart rate, low frequency and blood volume pulse amplitude. In addition, the ANS response caused by each emotion had significant differences among the emotions. These results can probably be able to use to extend the emotion theory and develop the algorithm in recognition of three kinds of emotions (boredom, surprise, and pain) by response measurement indicators and be used to make applications for differentiating various human emotions in computer system.

• Science of Emotion and Sensibility
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• v.10 no.3
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• pp.471-480
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• 2007

Negative emotions play an important function as to human's existence. In this research, we employed the audio-visual film clips to induce negative emotions and examined the classified responses in the autonomic nervous system(ANS) due to each negative emotion.30 adults(22.6 years $old{\pm}1.24$, 15 males and 15 females) took part in this experiment. Through the preliminary experiment, 2 minutes film's stimuli were selected as the emotion-induced stimuli. During the period when participants were viewing and listening to the selected movie, EDA and ECG were examined as soon as one stimulus was displayed, participants were tested by completing the psychological appraisals of their experienced emotion due to each emotional stimulus. With regard to the result of analyzing the psychological responses, each negative emotion appropriately and effectively induced its target emotion. While concerning the result of analyzing ANS responses, each negative emotion induced its respective activation in ANS. What is more, compared with other types of negative emotional stimuli, the scaring stimulus induced higher activation of the sympathetic nervour system(SNS) as to the indexes in EDh and ECG. This research made segmentation of ANS responses to each negative emotion, which has its significance.

• Science of Emotion and Sensibility
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• v.22 no.4
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• pp.57-64
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• 2019

Anger is the most common emotional trigger causing relapses in individuals with alcohol use disorders (AUDs). The present study intended to investigate the autonomic nervous system (ANS) responses induced by anger in individuals with AUDs. The participants in this study included twelve individuals with AUDs and 14 non-frequent drinkers. Anger was induced in the participants via a 120-second film clip. Before the presentation of this audio-visual stimulus, the ANS responses of the participants were measured for 60 seconds to ascertain their resting state. Subsequently, the participants' ANS responses were measured again for 120 seconds when they were in an emotional state during the presentation of the clip. After the ANS measurements were taken, participants were asked to rate the type of emotion they had experienced as they viewed the film and to report its intensity. The results indicated that the levels of anger experienced by the AUD group were not significantly different from the emotion registered by the control group. However, the ANS responses induced in AUD participants when they were in an emotional state showed blunted skin conductance levels (SCL) and skin conductance responses (SCR) compared to the control group participants. Individuals with AUDs evinced lower emotional arousal than the participants of the control group. These results can help clinicians understand the psychological and physiological responses of individuals with AUDs to anger in order to design effective interventions that would reduce chances of anger and relapse.