• Proceedings of the KIEE Conference
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• 2006.07d
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• pp.2177-2178
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• 2006

학습 행동에서의 뇌파 측정은 실시간으로 두뇌 기능 상태를 연구하는데 유용한 연구 방법이며 대뇌의 부위 중 전두엽은 새로움에 대한 지향 반응과 사고 활동에 중요한 역할을 한다. 본 연구에서는 중학교 2학년 학생에게 새로운 시청각 학습 자료를 제시하고 5회의 반복학습이 이루어지는 과정에서의 전두부($Fp_2,Fp_2$)의 뇌파를 측정하고 Fourier, Wavelet 변환을 하여 정량적으로 분석하였다. 주의 집중, 정서 등 인지와 관련지어 특정파의 조절 능력 및 파의 특성을 이용한 여러 연구들을 종합해보면, 기억력, 주의지속과 연관되어 알파파, 베타파와 세타파가 발생되는 것을 볼 수 있다. 이 중 알파파는 기존의 뇌 상태를 동기화시키고 주의나 기억의 과정에 영향을 미칠 수 있는 것으로 증명되었다. 본 논문에서는 신호 처리에 높은 효율을 보이는 Wavelet 변환을 이용하여, 학습이 됨에 따라 변화하는 EEG 신호 가운데 알파파의 패턴과 활성도를 분석하고자 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2010.11a
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• pp.728-731
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• 2010

현대 사회에서 운동 부족의 원인은 바로 빠른 삶을 추구하는 우리나라 사람들의 성향에 있다고 볼 수 있다. 이런 현대사회에서 빠른 삶을 추구할수록 사람들은 단기간에 많은 효과를 보려고 무리한 운동을 한다. 갑작스러운 운동은 우리 몸에 이로운 것이 아니라 스트레스를 쌓이게 하고 이렇게 쌓인 스트레스는 고혈압, 심근경색, 뇌졸중 등 심혈관계 질환에 영향을 미치는 중요한 위험요인이다. 혈압은 정서적 긴장이나 주위 환경 및 활동에 따라서 변동하기 때문에 갑작스런 운동은 혈압에 좋지 않은 영향을 줄 수 있다. 이에 본 논문에서는 갑작스런 운동량에 따른 혈압 변화와 얼굴색과의 상관성을 알아보기 위해 운동량에 따른 혈압 변화와 얼굴 영역 추출 후 얼굴영역에 나타나는 색상 변화를 Lab 값 중 a값의 변화를 비교, 분석하였다.

• Korean Journal of Food Science and Technology
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• v.46 no.1
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• pp.115-120
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• 2014

The purpose of this study was to develop a rice straw-derived Bacillus cereus (B. cereus)-free starter culture for traditional soybean fermented products using a B. cereus-specific bacteriophage, BCP8-2. To determine the optimal medium that supports the growth of rice straw-derived microorganisms and BCP8-2 activity, 5 different culture media were tested. The 5% ground bean (GB) medium was selected for further study. No B. cereus was detected in the BCP8-2-treated rice straw in GB medium, whereas B. cereus at a level of $10^7$ CFU/mL was recovered in the no-phage control. The total bacterial count reached approximately $10^9$ CFU/mL regardless of phage addition. When the 16S rRNA sequence-based microbial community was monitored using denaturing gradient gel electrophoresis (DGGE) and pyrosequencing, a similar microbial community was observed in the phage-treated and control samples. In conclusion, we demonstrate that phage can be used to prepare a rice straw-derived B. cereus-free starter culture with minimal effect on natural microflora.

• Korean Journal of Childcare and Education
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• v.11 no.1
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• pp.249-267
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• 2015

This study aims to examine the effect of child-centered group play therapy on the improvement of withdrawn preschool children's daily stress, anxiety, peer interaction and EEG variation. The research subjects are 12 children of 3-5 years of age who are over 65T in the social-withdrawal scale of KPRC(Korean Personality Rating Scale for Children). They were recommended by class teachers due to the withdrawal behavior at D kindergarten in Seoul. The experimental group received 12 sessions of the child-centered group play therapy program, twice a week for 35 minutes. But the control group did not receive any of the child-centered group play therapy program. To verify the effects of the program, a Mann-Whitney-U test of the non-parametric was preceded and homogeneity between the two groups was verified. Also, a Wilcoxon's signed-rank test was conducted to check on the pre-to-post changes of daily stress, anxiety, peer-interaction and EEG variation by using SPSS 18.0. The results of this research showed that the child-centered group play therapy program decreases daily stress and anxiety, while it increases positive peer-interaction and the EQ of withdrawal children. The result of this study serves as a baseline data about the effects of child-centered group play therapy for withdrawal children with emotional difficulties.

• Science of Emotion and Sensibility
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• v.23 no.3
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• pp.47-62
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• 2020

The snake detection theory posits that, due to competition with snakes, the primate visual system has been evolved to detect camouflaged snakes. Specifically, one of its hypotheses states that the subcortical visual pathway mainly consisting of koniocellular cells enables humans to automatically detect the threat of snakes without consuming mental resources. Here we tested the hypothesis by comparing human participants' responses to snakes with those to fearful faces and flowers. Participants viewed either original images or converted ones, which lacked the differences in color, luminance, contrast, and spatial frequency energies between categories. While participants in Experiment 1 produced valence and arousal ratings to each image, those in Experiment 2 detected target images in the breaking continuous flash suppression (bCFS) paradigm. As a result, visual factors influenced the responses to snakes most strongly. After minimizing visual differences, snakes were rated as being less negative and less arousing, and detected more slowly from suppression. In contrast, the images of the other categories were less affected by image conversion. In particular, fearful faces were rated as greater threats and detected more quickly than other categories. In addition, for snakes, changes in arousal ratings and those in bCFS response times were negatively correlated: Those snake images, the arousal ratings of which decreased, produced increased detection latency. These findings suggest that the influence of snakes on human responses to threat is limited relative to fearful faces, and that detection responses in bCFS share common processing mechanisms with conscious ratings. In conclusion, the current study calls into question the assumption that snake detection in humans is a product of unconscious subcortical visual processing.

• Horticultural Science & Technology
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• v.28 no.5
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• pp.884-890
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• 2010

To examine the effects of horticultural occupational therapy (HOT) on the physical and psychological rehabilitation of stroke patients with paralysis on one side of the body, a horticultural therapy (HT) program was implemented along with occupational therapy (OT) in 20 patients with hemiplegia after stroke (treatment group). In the control group, another 20 patients with hemiplegia after stroke received OT but no HT. The HOT program consisted of various indoor horticultural activities that proceeded stepwise on a weekly basis over the course of four weeks. The selected horticultural occupations were organized into four-phases: motivation, adaptation, sociality, and interpersonal relationships and communication. The grooved pegboard test (GPT), geriatric depression scale (GDS), and functional independent measure (FIM) were tested to the patients in this study. Unlike control group, the treatment group showed statistically significant differences in GPT, GDS, and FIM ($p$<0.001). In addition, communication, social cognition, and self-care scores as FIM subordinate factors were improved significantly by HOT program which motivated patients to engage in rehabilitation therapy. This finding suggests that HOT has the potential to be used as an OT program for stroke patients with hemiplegia.

• Journal of Digital Convergence
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• v.15 no.12
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• pp.169-185
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• 2017

Given that nowadays things get very fast due to the pervasive use of the Internet and mobile devices, decision-making time can be an important variable in the online economic decisions. Although in experimental and behavioral economics, measures like scores or earnings are usually preferred, this study argues that the time variable can be dealt with as a new decision outcome. Thus, by selecting some psychological factors presumably impactful in the online context (i.e., incidental emotions, psychological distances, and individual's impulsivity), this study tested their effect on decision time in the online centipede game. As a result, the mean decision time in the game was longer (1) in the happiness condition than in the anger condition and (2) in the friend condition than in the stranger condition. The people with attention difficulties spent a short time in the decision and the people who dislike complex problems spent a short time in explaining their decision. This study can contribute to the field as it used the decision time as the dependent variable and it tested the effect of psychological factors in the context of online decision-making. Future studies can be conducted in other online decision situations or by considering other psychological variables.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.10
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• pp.159-168
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• 2019

This study draws on goal orientation theory and proposes the team learning goal orientation as an antecedent of team creativity. In addition, an Input-Process-Output (IPO) model was adopted, in which the team reflexivity, team efficacy, and positive group affective tone (PGAT) are linking mechanisms in the relationship between team learning goal orientation and team creativity. Using 57 teams from three lectures of the college, hierarchical regression analysis was conducted at the team level. The results showed that the team learning goal orientation had positive associations with team creativity, team reflexivity, and team efficacy. In addition, team reflexivity and team efficacy positively predicted the team creativity. Furthermore, the relationship between team learning goal orientation and team creativity was mediated by the team reflexivity and team efficacy. In contrast to predictions, PGAT did not show significant relations with both team learning goal orientation and team creativity. In conclusion, this study integrated the team-learning goal orientation and team creativity literature and contributes to the understanding of team reflexivity as a cognitive process and team efficacy as a motivational process between the team property and team creativity. These results have practical implications for managing teams.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.6
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• pp.113-125
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• 2019

This research aims to understand the common psychological features of consumer. And master the direction of the development of the network novels derivation by analysis the TV plays adapted from network novels in China's IP industry. To this end, This research determine to analyzed consumer adoption attitude the Behavior Intention of derivative products. The date were collected from 612 Chinese people, from October 15 to October 22 2018. Statistical analysis were through SPSS 21 after data coding and data cleanings process. This research performed frequency analysis exploratory factor analysis, Independent sample t-test, one-way ANOVA, post-analysis Duncan test, correlation analysis and mass regression analysis. The research results are as follows. Firstly, the characteristics(topicality, empathy and interest) of network novel TV play positively related role in the adoption attitudes(cognitive attitude and emotional attitude) of derivatives commodities. At the same time, identity has a more positively related influence than topicality and interest. Secondly, all the characteristics of network novels consisting of topicality, identity and interest play positive related roles in the behavioral intentions of derivative commodities. Thirdly, emotional attitude plays a more positively related role in purchasing intention and recommendation intention compared with cognitive attitude. It is hoped that the research results can play a fundamental role in the production and development of network novels derivatives.

• Journal of Korea Entertainment Industry Association
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• v.14 no.1
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• pp.167-177
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• 2020

This study purposes to analyze the changes of the pain care awareness and health related quality of life of the people with the chronic low back pain through the participation in the kinesio-taping self application education program. A total of 30 people with chronic LBP participated and they divided into experimental(n=15) and control group(n=15). An experimental group participated in the Kinesio-taping education program for 4 weeks and a control group was treated by a therapist. Through these, the pain care awareness and health related quality of life were analyzed. In the care of the health care awareness, the canadian Occupational Performance Measure was used to assess the subjects' performance and satisfaction. The short form-8 health survey was used to the health related quality of life. The results of the health care awareness and health related quality of life were increased in the experimental group and the statistically significant difference showed between group. This education program is a meaningful method to improve the health related quality of life from the pain care in the daily life by itself. Thus, the kinesio-taping self application education program should be considered for the people with the chronic low back pain.