• Journal of Electrical Engineering and Technology
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• 제9권1호
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• pp.324-333
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• 2014

In this study, physiological status of locomotive engineers were measured through EEG, ECG, EDA, PPG and respiration signals from 6 subjects to evaluate their arousal status during train operating. Existence of tunnels and mechanical vibration of train using 3-axes acceleration sensors were recorded simultaneously and were correlated with operator's physiological status. As the result of the analyzed subjects' physiological signals, mean SCR was increased in the section where more body movement is required. The RR interval was decreased before and after train stop due to the higher level of mental tension. The intensity of beta wave of EEG was found to be higher before and after train stop and tunnel section due to the increased mental arousal and tension. Therefore, it is expected that the outcomes of the physiological signals explored in this study can be utilized as the quantitative assessment methods for the arousal status to be used for sleepiness prevention system for vehicles operators which can greatly contribute to public transportation system safety.

• 감성과학
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• 제5권4호
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• pp.11-32
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• 2002

이 논문은 피로, 졸음, 각성, 기분 등과 같은 운전자 상태의 다양한 측면을 측정하기 위해 지상교통 분야에서 사용되어온 주관적 척도들을 평가한다. 구체적으로, 대표적인 주관적 측정 방법인 Epworth Sleepiness Scale, Karolinska Sleepiness Scale, Pearson and Byars Fatigue Checklist, Stanford Sleepiness Scale, Stress-Arousal Checklist 와 NPRU Mood Scale등이 신뢰성, 타당성, 민감성과 응용을 위한 적절성의 측면에서 비교 및 대조된다. 결론에서 이러한 주관적 척도들을 지상교통 분야에 응용하기 위한 제언이 논의된다.

• 한국콘텐츠학회논문지
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• 제8권12호
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• pp.176-189
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• 2008

본 연구는 공연 시 배우의 심박수의 각성변화와 유발된 각성상태에 대한 심리적 자기조절을 분석하는데 그 목적이 있다. 연구대상자는 연극 전문극단에 소속되어 있는 배우 5명을 목적적 표본추출하였다. 각성변화를 측정하기 위해서 심박수 측정기를 활용하였고, 자기조절 행동을 관찰 및 기록할 수 있는 행동 관찰지를 사용하였으며, 공연종료 후 개인별 심층상담을 실시하였다. 심박수 변화에 대한 평균과 표준편차를 산출하여, 공연 시간대별 변화 추이를 그래프화 하였으며, 자기조절 행동을 분석하기 위해 질적 연구방법을 실시하였다. 도출된 연구결과는 다음과 같다. 첫째, 배우들은 공연이 시작되기 전부터 심박수의 각성수준이 높아지는 변화를 나타냈으며, 공연 시작 20분 전부터 5분 전까지 가장 높은 각성상태를 보였다. 둘째, 공연 시작 전 심호흡, 호흡 가다듬기, 자기대화, 배우들과의 대화, 대본연습에 집중, 화장실 가기, 흡연, 복장점검 등의 자기조절적 행동을 나타냈다. 셋째, 공연 시 높아진 각성상태를 조절하기 위해서 이완기법, 자기집중화, 자신감강화, 상황대처 및 적응 등과 같은 심리적 자기조절 방법을 사용하는 것으로 나타났다.

• Childhood Kidney Diseases
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• 제16권1호
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• pp.9-14
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• 2012

The relationship between central nervous system (CNS) and enuresis has not been sufficiently elucidated despite the presence of several circumstantial evidences. Contrary to common belief, polysomnographic sleep analysis revealed that the disturbance of arousal rather than deep sleep was responsible for enuresis. Subsequent studies confirmed depressed sympathetic tone and retarded brainstem reflex indicating abnormal arousal threshold in enuretics. In accordance with the bladder-brain dialogue, chronic stimulation of bladder may modify the brainstem function elevating arousal threshold. Epidemiological studies have suggested the association between enuresis and various psychosomatic disorders like attention deficit hyperactivity disorder (ADHD), which has shown the abnormal brainstem reflex similar to enuresis. Taken together, CNS is assumed to play a crucial role in the pathogenesis of enuresis. Psychological assessment is vital to understand the psychodynamic effect of enuresis. Studies have shown that the prevalence of psychological problems was higher in enuretic children and externalization of the symptoms was usually found. Several explanations have been brought up regarding the development of enuresis and psychological problems. Enuresis may cause psychological problems and vice versa. Otherwise, both may be associated with other variables, such as socioeconomic status (SES).

• Annals of Occupational and Environmental Medicine
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• 제35권
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• pp.47.1-47.14
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• 2023

Background: This study aimed to examine the impact of chronotype on depressive symptoms and explore the mediating effects of sleep quality, pre-sleep cognitive arousal, and social jetlag in a sample of wage earners. Methods: A total of 3,917 waged workers were surveyed online in July 2022. Logistic regression and mediation analysis were used to assess the relationship between chronotype (morningness, intermediate, and eveningness) and depressive symptoms (Patient Health Questionnaire ≥ 5), and the mediating effects of Insomnia Severity Index (ISI), Pittsburgh Sleep Quality Index (PSQI), and Pre-Sleep Arousal Scale (PSAS). All analyses were adjusted for age, education level, income level, marital status, coffee consumption, alcohol consumption, physical activity, occupation, employment status, and working hours to calculate odds ratios (ORs). Results: The chronotypes of all the participants were divided into morningness (4.7%), intermediate (93.5%), and eveningness (1.8%). Multiple logistic regression analysis showed an increased risk of depression in the eveningness chronotype (OR: 2.96; 95% confidence interval [CI]: 1.51, 5.86). Regarding the mediation analysis, ISI mediated 28.44% (95% CI: 16.39-40.5), PSQI for 31.25% (95% CI: 19.36, 43.15), and PSAS-Cognitive Score (PSAS-C) for 23.58% (95% CI: 10.66, 36.50) of the association between chronotype and depressive symptoms. However, social jetlag did not significantly mediate this relationship. (percentage mediated = 0.75%, 95% CI: -3.88, 5.39) Conclusions: Evening chronotypes exhibit an increased risk of depressive symptoms, which ISI, PSQI, and PSAS-C partially mediated. This suggests that interventions to improve sleep quality and maintain adequate sleep habits may effectively prevent and treat depression in employees with an eveningness chronotype.

• 한국학교ㆍ지역보건교육학회지
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• 제15권2호
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• pp.39-49
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• 2014

Objectives: University students's oral health care practice and oral health status are very important. Because its affect their systemic disease, so as to have confidence, and to be eager to study. However if they feel dental fear, they avoid dental treatment. It is miss opportunities of early treatment and prevention treatment and have little effect on dental treatment. The aim of this study was to investigate the factors influencing dental fear of university students to reduce their dental fear. Methods: A total of 366 self-administered questionnaires were collected from university student in Cheon-an. To investigate the factors influencing dental fear of university students, t-test, one-way ANOVA, correlation analysis, linear regression analysis were carried out by using SPSS ver. 18.0 Results: University students feel the most fear of specific dental stimuli. Especially, 'Feeling the needle injected'. University Students felt dental fear in order of 'fear of specific dental stimuli', 'physiologic arousal', 'avoidance fear'. 'Feeling the needle injected', they felt severe dental fear. 'My muscles become tense' of Symptoms they feel dental fear was the most frequent Sex affects avoidance fear, physiologic arousal, fear of specific dental stimuli and dental fear. Femal feel more its than male. The time since last dental clinic visit affects physiologic arousal, fear of specific dental stimuli and dental fear. Group do not visit the dental clinic within a year feel more its than others. Conclusions: To reduce dental fear in university students, it is necessary to make them visit dental clinics frequently and dental staffs consider their sex. Therefore, Department of dental hygiene and dentistry must be added the management of dental fear of the curriculum. In addition, it must be emphasized that to visit dental clinics frequently for university students.

• 대한간호학회지
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• 제33권6호
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• pp.829-838
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• 2003

Purpose: In South Korea, as growing the need of psychological support in disaster situation psychological assessment on stress after disaster is important to find out the factors affecting coping, and to plan intervention in the community. Method: The volunteers of Korea Redcross who live around K city, and the research team visited all homes at Jirye town, one of the high-impact area, 4 month after the typhoon. One of the family members who is over 18 years old, answered the self-report questionnaire composed of disaster experience, damage, exposure to traumatic event, and posttraumatic stress with IES-K (Impact of Event Scale-korea) He also, described his family members symptom related to re-experiencing, hyper-arousal, and avoidance. Six hundreds households were surveyed. Result: The prevalence of moderate to severe PTSD symptom was 36% of the subjects. The severity of PTSD was affected by gender, economic status and affected by damaged property, physical injury, worsening existing disease, getting infectious disease, amount of experienced traumatic event before disaster, warning, taking shelter, and subjects revealed differences in somatization as severity of PTSD. According to the description, community members had re-experiencing, hyper-arousal and avoidance. Conclusion: At a rural area, South Korea, community members have suffered from psychological distress after disaster. So psychological interventions are required as affecting factors and also to plan for warning and shelter in disaster situation is needed for preventing PTSD.

• 대한간호학회지
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• 제28권3호
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• pp.760-772
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• 1998

The purpose of this study was to explore the concept of quality of life for bone marrow transplant (BMT) survivors and to gain understanding of nursing interventions that may improve QOL in this population. The data was gathered from 32 BMT survivors using seven open-ended questions. The items were based on previous research of Ferrell et al., (1992). Content analysis was performed on written responses to seven questions regarding BMT and QOL. The results were as follows : 1. The meaning of QOL for BMT survivors were "being healt", "being able to take a role", "having relationships", "self-accomplishment", "peace of mind", "spiritual well-being", "economic stability" and "being alive". 2. The impact of BMT on physical well-being were "skin impairment", "digestive problems", "infections ", "fatigue/weakness", "arthralgia", "eye dryness". "weight gain", "amenorrhea" and "hand tremor". 3. The impact of BMT on psychological well-being were "fear of recurrence", "sence of peace" and "hope". 4. The impact of BMT on socioeconomic status were "financial burden", "limitation of social activities" and "sence of withdrawal". 5. The impact of BMT on spiritual well-being were "dependency on Supreme Being", "spiritual arousal " and "spiritual maturity". The findings of the study will be useful in constructing a instrument to measure QOL in BMT and in understanding the conceptual basis of QOL for the BMT population.ency on Supreme Being", "spiritual arousal " and "spiritual maturity". The findings of the study will be useful in constructing a instrument to measure QOL in BMT and in understanding the conceptual basis of QOL for the BMT population.L for the BMT population.

• 가정과삶의질연구
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• 제26권1호
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• pp.95-105
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• 2008

This paper identifies current status and key determinants of participation in multimedia UCC as a web2.0 paradigm. Significant factors composed of IT digital convergence environments and young generation's value, attitude to connecting to web (human relation, visual expressionism, arousal, et al). This paper analyze multimedia UCC service status & current status of participation level of UCC users. The research implemented to analysis customer click streaming data (inter-temporary page-view, unique user)of small-mid multimedia UCC Company and to 2nd data(ww.rankey.com) for page-view and unique user to participation tendency by age and sex about total participation amount of multimedia UCC. In case of young generation be familiar with new internet service, Internet web space meaning important information seeking media and 1 person media able to connect to new web network as prosumer. In UCC centered internet business, web based customers implemented the role of prosumer as generate web contents and consuming to net-working.

• 한국치위생학회지
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• 제12권6호
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• pp.1148-1157
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• 2012

Objectives : The purpose of this study is to analyze factors impacting dental treatment of fear and distrust of dentists. The subjects of this study consists of 720 middle & high school students in Daegu area. Methods : The data were collected from June 1, 2009 to September 30, 2009 by self-administrative questionnaires. The data received was analyzed using the descriptive statistic, t-test, ANOVA, and multiple linear regression analysis with level of significance as p<0.05 stimulus response factors in oral health education, often highly-experienced, and distrust of the dentists of factors the lower stimulus response factors are highly. Results : A female dental treatment of fear and distrust of dentists showed higher than male. Showed higher dental treatment of fear and the higher distrust of dentist. Showde the treatment-avoidance factors the higher patient of negligence factors and distrust of dentists factors are highly statistically significant. Showed the stimulus response factors in oral health education, often highly-experienced, and distrust of the dentists of factors the lower stimulus response factors are highly. Showed the similar results physiological arousal factors and the stimulus response factors. Conclusions : The results suggest that oral health status of improve adolescent before treatment of patients identify biological characteristics and personality can decrease dental treatment of fear and distrust of dentist.