• Journal of Digital Convergence
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• v.17 no.3
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• pp.221-226
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• 2019

The characteristic of the beta wave among the EEG waves corresponds to the stress area of human perception. The over-bandwidth of the stress is extracted by analyzing the beta-wave correlation between the low-bandwidth and high-bandwidth. We present a KMeans clustering analysis model for unsupervised machine learning to construct an analytical model for analyzing and extracting the beta-wave correlation. The proposed model classifies the beta wave region into clusters of similar regions and identifies anomalous waveforms in the corresponding clustering category. The abnormal group of waveform clusters and the normal category leaving region are discriminated from the stress risk group. Using this model, it is possible to discriminate the degree of stress of the cognitive state through the EEG waveform, and it is possible to manage and apply the cognitive state of the individual.

• Annual Conference of KIPS
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• 2024.10a
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• pp.490-491
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• 2024

본 연구는 스트레스는 현대사회에서 중요한 건강 문제로 대두되고 있으며, 이는 개인의 정신적, 신체적 건강에 심각한 영향을 미칠 수 있습니다. 본 논문에서는 스트레스와 우울의 상관관계를 분석한 후, 질병관리청의 '2023 지역건강통계 한눈에 보기'와 HIRA 빅데이터 개방포털의 '지역별 정신질환_우울증 진료현황(2019~2023 년)' 데이터를 비교·분석하여 스트레스를 줄일 수 있는 연구를 제안하고자 합니다. 이 연구의 목적은 스트레스가 증가함에 따라 사람들의 심리, 신체 건강에 영향을 미치며 더 나아가 우울증의 주요 원인이 될 수 있음을 인지하고 지역별 스트레스 및 우울감 인지율과 실제 우울증 진료 통계를 비교·분석하는 데 목적이 있습니다. 이를 바탕으로 스트레스 관리의 중요성을 제시하며, 여러가지 해결책을 통해 사람들 간 소통을 촉진하고 스트레스를 완화할 방법을 제안하고자 합니다. 특히, 우리나라의 통계와 지표를 활용해 스트레스 및 우울감이 높은 지역을 선정하고, 그에 따른 해결 방안을 마련하는 것이 목표입니다.

• Journal of the Korea Convergence Society
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• v.9 no.9
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• pp.285-292
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• 2018

The purpose of this study is to analyze the association of smoking cessation attempts and the perceived stress level and to identify the factors affecting the perceived stress level of quit smoking. The study utilized the 2015 Korean National Health and Nutrition Examination Survey, and was applied an Ordinal Logistic Regression to examine the association of smoking cessation attempts and perceived stress level. The current smoker those who experience failure in smoking cessation, were more stressful than those who experience success in smoking cessation (OR=1.72, CI;1.41-2.08). This study identified smoking cessation failure as a major psychiatric factor associated with high perceived stress level, and suggests high stress after smoking cessation failure as one of the reasons why smokers do not reach complete smoking cessation. Also, in order to promote smoking cessation, it is needed to have political approach in reducing the psychiatric hurdle like high stress after smoking cessation failure.

• Proceedings of the Korea Contents Association Conference
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• 2016.05a
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• pp.415-416
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• 2016

본 연구의 목적은 이직의도에 미치는 영향 요인에 관한 연구를 수행함으로써 중소병원 간호사의 이직 현상을 이해하는데 포괄적 조망을 제공하기 위함이다. 의료기관 종사자중 중소병원에 근무하는 간호사 210명을 대상으로 자가 보고식 설문조사법을 이용하여 조사하였고, 5점 리커르트 척도를 이용하여 이직의도, 내부마케팅 인지, 직무만족, 조직몰입, 스트레스를 측정하였다. 도구의 분석은 SPSS WIN 18.0프로그램을 이용하여 t-test, ANOVA, correlation, Regression분석을 실시하였다. 이직의도와 독립변수간 상관계수는 내부마케팅인지, 직무만족, 조직몰입, 스트레스였고 모든 변수들은 유의하였다. 또한, 이직의도에 영향을 미치는 요인은 조직몰입, 스트레스 순으로 나타났으며 설명력은 64.3%였다. 본 연구결과, 중소병원 간호사의 조직몰입 정도가 높아지고 스트레스 정도가 낮아지면 이직의도가 낮아 질것이라고 예측 가능하므로 의료기관내 이직관리의 필요성을 제기하였다. 중소병원 간호사의 이직의도를 낮추기 위해 간호사의 스트레스를 줄이고, 조직몰입을 향상시키기 위한 중재 방안 도입이 요구된다.

• Korean Journal of Clinical Laboratory Science
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• v.51 no.1
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• pp.105-113
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• 2019

This study examined the effects of geriatric depression and geriatric stress on cognitive impairment. In particular, the dementia groups were divided into Alzheimer's disease and vascular dementia. A normal group was used as the control group. For each group, the geriatric depression using the geriatric depression scale (GDS) and geriatric stress using the geriatric stress scale (GSS) was compared with the regression and correlation results of cognitive impairment. Statistical tests, such as descriptive statistics, Kruskall-Wallis, correlation analysis, and multiple regression analysis, were performed. For the Alzheimer's group, the GDS and GSS correlated with the cognitive impairment, but only the GDS showed a cause-and-effect relationship with cognitive impairment. In particular, the male group with Alzheimer's disease showed clear confirmation. In addition, geriatric stress was found to be associated with geriatric depression. In conclusion, geriatric depression affects the cognitive impairment directly and geriatric stress affects the cognitive ability indirectly through geriatric depression. In this study, the Alzheimer's disease, vascular dementia, and control groups had a small sample size. Therefore, the external validity in future studies can be increased using a larger sample size for each group.

• The Journal of the Korea Contents Association
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• v.19 no.3
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• pp.313-327
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• 2019

The purpose of this study was to identify the effect of new graduate nurses' empathy and their perceived preceptors' empathy on job satisfaction, job stress and turnover intention. For this purpose, a survey was conducted on new graduate nurses who were under 12 months old while working at three medical institutions that operated the preceptorship. In the preceptorship according to adult learning theory, the preceptors need to create a psychological environment for the new graduate nurses, and their empathy should be perceived by new graduate nurses. The study revealed that the new graduate nurses group with high level of empathy had high levels of job satisfaction, low job stress, and low degree of turnover intention, and the level of empathy affects job satisfaction of new graduate nurses. The new graduate nurses group with low level of perceived preceptor's empathy had low job satisfaction, high job stress, and high degree of turnover intention, and their perceived preceptor's empathy affected job stress and turnover intention. Based on these results, we suggest the introduction of a program to enhance empathy for new graduate nurses and preceptors.

• Journal of the Korean Applied Science and Technology
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• v.41 no.4
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• pp.1056-1065
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• 2024

The purpose of this study is to investigate the factors affecting sleep quality, depression, and stress on cognitive function in community-dwelling insomnia elderly people. The subjects of the study were 111 elderly registered at a senior center and welfare center in S City who were over 60 years old and complained of insomnia for the past 3 months or more. Self-report questionnaires and the Montreal Cognitive Assessment(Moca-K) were administered. Data were analyzed using SPSS Statistics 25.0 was used for data analysis, and the Pearson's correlation coefficient for the correlation between variables, and multiple regression analysis was used to determine influential factors. As a result of the study, cognitive function was significantly related to sleep quality(r=-0.45, p<.001), depression (r=-0.32, p<.001), and stress(r=-0.56, p<.001). showed a correlation. Predictive factors for cognitive function were identified as sleep quality and stress, and the explanatory power of these variables was found to be 35.0%. Based on these research results, it is necessary to develop a intervention program that can manage sleep quality and psychological symptoms to improve cognitive function in insomnia elderly people living in the community.

• Journal of the Korean Institute of Landscape Architecture
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• v.43 no.6
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• pp.127-137
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• 2015

Recent research has shown that university students experience severe stress and depleted directed attention due to study, social relationships, and economic dependency. Based on the stress reduction theory and the attention restoration theory, this study aims to investigate the effects of natural landscape on university students' stress and cognitive performance through a wide array of measurements including GSR(galvanic skin responsse), IBI(interbeat interval), ZIPERS(Zucherman Inventory of Personal Reactions), and mental arithmetic test. The restorative effects of natural landscape were compared with those of urban landscape. 128 university students participated in the study, and the data of 120 students was analyzed. The results showed that natural landscape was more restorative in relieving psychological stress and in enhancing cognitive performance than urban landscape, which evidenced the restorative effects of natural landscape. Therefore, it could be proposed that natural landscaping of the university campus contributes to students' stress reduction and cognitive enhancement. But such effects were not found in the two physiological measures(both GSR and IBI). Moreover, it was analyzed that urban landscape had a more beneficial effect than natural landscape for IBI, which might resulted from the participants' characteristics and the study landscape. Specifically, the young age span of the participants(average 23.8 years old) and the very natural setting of the university where they were enrolled might lead to the conflicting results in physiological measures. Also, the urban landscape used in the study had a sense of "scope", which is one of the Kaplan and Kaplan's restorative characteristics. Based on this opinion, it was suggested that future study should investigate the impact of the landscape type and contents as well as the participants' characteristics on the restorative effects of natural landscape.

• Journal of Korea Entertainment Industry Association
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• v.15 no.1
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• pp.229-236
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• 2021

The purpose of this study is to investigate how the combined intervention of occupation-based intervention and computerized cognitive rehabilitation treatment affects the psychosocial function, cognitive function, and depression of stroke patients. 23 stroke patients were divided into experimental group(n=11) and a control group(n=12), and the experimental group and the control group received CoTras for 4 weeks and 30 minutes each, and additionally the experimental group received task-based intervention for 30 minutes before the start of CoTras. It was conducted 20 times for a total of 4 weeks. Self-efficacy scale, stress scale, depression scale, neurobehavioral cognitive status examination were used. As a result of the study, the experimental group showed significant improvement in improvement of self-efficacy, stress, and depression than the control group, and the experimental group showed a small effect difference in magnitude of effect from the control group in cognitive function. Based on this study, it is possible to utilize the simultaneous task-based intervention with CoTras to improve psychosocial function, depression and cognitive function in stroke patients.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.6
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• pp.209-218
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• 2017

This study examined the influence of social support (social support from family, social support from friends), psychological behavioral characteristics (self-esteem, interpersonal dependency, locus of control), and stress on the depression levels of college students. The study subjects were 546 college students in D city. The survey was conducted using a self-administered questionnaire in October 2015. As a result, the depression levels were significantly higher in the group showing lower family and friends' social support, self-esteem, and locus of control, while it was significantly higher in the group showing higher interpersonal dependency and stress. The depression levels of the subjects showed a negative correlation with family and friends' social support, self-esteem, and locus of control, but a positive correlation with interpersonal dependency and stress. Covariance structure analysis revealed an increase in the depression levels of college students when the awareness of the stress source was higher, and when the awareness of social support or psychological behavioral characteristics was lower. These results suggest that the depression levels of college students would be increased when the social support and psychological behavioral characteristics are low, and when stress is high. In particular, it was influenced much more by stress than other factors. Therefore, to decrease the depression levels of college students, it would be necessary to put efforts to understand their main stress sources and then reduce them.