• Science of Emotion and Sensibility
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• v.9 no.4
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• pp.307-319
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• 2006

Problematic behaviors have been among adolescent population in school and home. Problematic behavior manifested in childhood and adolescence is reported to be a good predictor for adult criminal behavior although no clear factor to cause was identified. Based on literature review on this subject, our hypotheses that delinquency and aggressive behaviors are associated with brain information processing and emotionality in adolescents was developed and this study aimed to test these hypotheses. 1,479 male and female middle school students were selected and given the Trait Meta-Mood Scale, Korea Youth Self Report-Child Behavior Check List and Brain Preference Indicator Test. The main results are as follows: 1) Subjects with problematic behavior compared to average students showed a significant difference in sub-variables of emotionality ant the characteristics of brain information processing. 2) Young adolescent's emotionality and brain information processing characteristics have effects on problematic behaviors. 3) However, the effect on aggression and delinquency was different by gender.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2003.11a
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• pp.1111-1115
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• 2003

본 연구에서는 일반 공기 중의 산소 농도(21％) 환경에 비해 외부에서 고 농도(30％)의 산소 공급이 인지 능력 중 특히 언어 능력에 어떠한 변화를 유발하는지 관찰하고자 한다. 9명의 오른 손잡이 남자 대학생을 본 연구의 실험 참여자로 선정하였다. 21％와 30％ 산소 농도를 각각 8L/min의 양으로 일정하게 공급할 수 있는 장치를 개발하여, 마스크를 통하여 실험 참여자에게 전달하면서 언어 과제를 수행하게 하였다. 동시에 3T MRI를 이용하여 뇌기능 영상을 획득하였다. 언어 능력 측정을 위해 28 문항을 포함하는 두 개의 문제지를 제작하였고, 과제 수행 결과로부터 정답률을 산출하였다. 21％에 비해 30％ 산소 농도에서 평균 정답률은 유의미한 증가를 하였고, 뇌 활성화 양도 증가하였다. 본 연구의 결과로부터 외부에서의 고농도의 산소 공급이 언어 능력 증가에 긍정적인 영향을 미친다는 결론을 도출할 수 있다.

• Proceedings of the KAIS Fall Conference
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• 2011.05b
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• pp.881-883
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• 2011

이 연구는 뉴로피드백 훈련을 통하여 유아들의 습득도에 미치는 영향을 개인이 지닌 뇌신경 생리학적 지표인 뇌파 측정을 이용하여 연구 하여 보았다. 대상자는 2010년 3월에서 2010년11월까지 S시 W 유치원 원아 52명(실험군 26명, 대조군 26명)을 기준으로 선정한 자료이다. 훈련 전과 후의 뇌기능 변화는 시계열 선형 분석을 통하여 비교하였으며 연구 검증 결과, 뉴로피드백 훈련을 적용한 원아들 에서 뇌기능과 습득도 척도에서 유의미한 차이를 보였다. 이 결과는 전전두엽 뉴로피드백 훈련이 유아들의 뇌기능의 발달과 습득도에 긍정적인 영향을 미쳤다고 본다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.8
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• pp.3486-3491
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• 2011

This study aims to identify the effect of neurofeedback training by observing the pre and post brainwave measurement results of about 60(experimental group 30, control group 30) subjects who have shown self directed learning ability. The study took place at neuro-training center B, in between the months of Jan. 2010 and Jul. 2010. As the brainwaves are adjusted by timeseries linear analysis. The result confirmed the differences of both self regulation quotient, training protocol, and questionnaire. The result of the study suggest neurofeedback technique's possibility in positively affecting the subjects' self directed learning ability.

• Journal of the Korean Society of Radiology
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• v.85 no.2
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• pp.381-393
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• 2024

Purpose Metabolic abnormalities in hepatic encephalopathy (HE) cause brain edema or demyelinating disease, resulting in symmetric regional cerebral edema (SRCE) on MRI. This study aimed to investigate the usefulness of the clustering analysis of SRCE in predicting the development of brain failure. Materials and Methods MR findings and clinical data of 98 consecutive patients with HE were retrospectively analyzed. The correlation between the 12 regions of SRCE was calculated using the phi (φ) coefficient, and the pattern was classified using hierarchical clustering using the φ² distance measure and Ward's method. The classified patterns of SRCE were correlated with clinical parameters such as the model for end-stage liver disease (MELD) score and HE grade. Results Significant associations were found between 22 pairs of regions of interest, including the red nucleus and corpus callosum (φ = 0.81, p < 0.001), crus cerebri and red nucleus (φ = 0.72, p < 0.001), and red nucleus and dentate nucleus (φ = 0.66, p < 0.001). After hierarchical clustering, 24 cases were classified into Group I, 35 into Group II, and 39 into Group III. Group III had a higher MELD score (p = 0.04) and HE grade (p = 0.002) than Group I. Conclusion Our study demonstrates that the SRCE patterns can be useful in predicting hepatic preservation and the occurrence of cerebral failure in HE.

• Science of Emotion and Sensibility
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• v.21 no.3
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• pp.49-60
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• 2018

Trait anger is one of the psychological traits associated with experiences of anger. Individuals with high trait anger become angry easily at trivial events, and experience anger more frequently, intensely, and over a longer duration. This study aimed to investigate neural responses during experiences of anger, and identify the neural correlates of trait anger. Thirty five adults participated in the functional magnetic resonance (fMRI) experiment. They were scanned while they recalled an anger-inducing memory that was supposed to evoke an experience of anger. During the angry recall compared to the emotionally neutral recall, our participants showed greater neural activation in the right superior temporal gyrus (BA38), left inferior frontal gyrus (BA45), right thalamus, right insula (BA13), bilateral cuneus (BA17), and right cerebellum anterior lobe. The correlation analysis revealed that trait anger scores were positively associated with right insula activity during the angry recall. Individuals with higher trait anger were more likely to show greater activity in the right insula in response to past experiences of anger, as previously implicated in various studies of emotional processing. This finding suggests that trait anger may be an important factor in modulating anger-related brain activity.

• Journal of the Korean Applied Science and Technology
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• v.37 no.6
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• pp.1687-1697
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• 2020

This study is a comparative descriptive research that identifies the degree and difference of the brain education meditation program from participation stress(physical stress, psychological stress), depression, resilience(self-control ability, interpersonal relationship ability, and positive) for middle-aged women. The subjects were 26 middle-aged women who participated in the brain education meditation program at the D metropolitan city D center for more than a year, 29 middle-aged women did not participate in the brain education meditation program and a total of 55 middle-aged women collected for three weeks from November 4 to 22, 2019. Data analysis fesult that the participating groups in brain education meditation programs differ statistically significantly in physical stress(t=2.549, p=.014), psychological stress(t=2.352, p=.022), self-control ability(t=-2.219, p=.031) and positive(t=-2.387, p=.021), which are higher factors in resilience than non-participating groups. In other words, brain education meditation program participants scored lower physical and psychological stress scores than nonparticipating groups, with higher self-control ability and positive scores. Therefore, it is thought that brain education meditation programs can be used as nursing intervention to reduce stress and improve self-control ability and positive in middle-aged women.

• Science of Emotion and Sensibility
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• v.13 no.3
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• pp.551-558
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• 2010

Pain is very complex and multi-level experience that should be objective or subjective. Acupuncture is a traditional method to heal the pain and have been based on meridian theory. There have been many clinical evidences showing the pain-relieving effect of acupuncture but science-based understanding of it was poor. Furthermore in daily life, we feel huge gap between the source of pain and pain control by acupuncture stimulation. However, the underlying connection between pain control and acupuncture stimulation has been reported in many recent reports. In this paper, we briefly introduce the brain imaging techniques (functional magnetic resonance images, positron emission tomography, electroencephalograph, and magnetoencephalography) and review researches in pain and acupuncture. Through this, the brain areas that activated by pain and acupuncture will be verified, and compared each other regarding their specificity and similarity. In addition, detailed understanding of brain function which is related to pain and acupuncture analgesia through brain imaging techniques will be discussed.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.21 no.10
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• pp.40-45
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• 2007

Lightning warning system plays an important role in protecting human life and other facilities from lightning return strokes. This paper dealt with lightning positioning algorithms and circuits as a main function of lightning warning system, which monitor movements and activities of thunderclouds. Electric field component produced by lightning discharge is detected by the configuration of a whip antenna and a narrow-band resonance amplifier with center frequency of 300[kHz]. Measurement circuit of magnetic field waveform consists of a crossed-loop coil and an integral amplifier, and its frequency bandwidth is ranges from 5[kHz] to 1.2[MHz]. The polarity of lightning discharge is discriminated by electric field component. After-fixing the polarity, we can calculate the direction and distance of lightning discharge by the peak and the zero-cross time of magnetic field waveform.

• Proceedings of the Korea Society of Information Technology Applications Conference
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• 2002.11a
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• pp.461-467
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• 2002

Signals reduced from the brain had been considered as a noise that is caused by the stochastic process until 1980. The recent non-linear dynamic theory researches, however, reported that these signals are meaningful and deterministic chaos signals in which they show how the brain deals with various information Since this report, a wide range of researches has been carried out and still in progress. Thus, by using the correlational dimension, one of the non-linear analytical methods, the characteristics of the brain signals can be analyzed. In this thesis, the scent of lavender, which stimulates the olfactory sense, is introduced to measure EEG with the International 10-20 electrode system on 16 channels, and to analyze the interrelationship between the original signals before the stimulation and the changed signals after the stimulation. Finally, the effect of the scent stimulation to the brain is analyzed. The purpose of this thesis is to apply these analyzed results to the computerized mapping of the brain signals and possible ways of specifying the source of the brain signals through various medical applications.