1.A Study of Attitudes toward the Mentally Ill in Pohang Community.
Jeong Kyu SAKONG ; Jeong Uk CHAE
Journal of Korean Neuropsychiatric Association 2001;40(1):50-62
OBJECTIVES: The purpose of this study is to get basic data to develop plan and strategy of com-munity mental health in Pohang city by identifying attitudes toward mentally ill in Pohang community. METHODS: The subjects of this study are the 491 persons aged between 20 and 59 who live in Pohang. Methods of selection for the subjects based on multistage stratified cluster sampling, i.e. by sex, by age, by place of residence("Up", "Myeon", "Dong"), and by ratio to total populations. Tool of the study is Community Attitudes to the Mentally Ill Inventory(CAMI). RESULTS: 1) The residents of Pohang community showed positive attitude in 'Benevolence' and 'Community mental health ideology' subscale and negative attitude in 'Authoritarianism' and 'Social restric-tiveness' subscale. Therefore community mental health project in Pohang city will be established and activated easily. 2) Aged group had more authoritative, social restrictive and less community mental health oriented attitude. 3) The lower educated group had more authoritative, social restrictive and less benevolent, community mental health oriented attitude. 4) The unmarried group had less authoritative, less social restrictive attitude. 5) The home-owners had more authoritative, more social restrictive attitude. 6) The opinion leaders had more authoritative and less community mental health oriented attitude. 7) The respondents whose family had used mental health services had less benevolent attitude. The respondents who themselves had used mental health services had more authoritative, less benevolent and community mental health oriented attitude. CONCLUSIONS: Therefore, it will be necessary to give public information and education for those who have negative attitude groups of aged, low educated, home-owners, opinion leaders and respondents who themselves or whose family had used mental health services. If resource could be made of persons of positive attitude groups of younger aged, highly educated and unmarried, community mental health project will be more efficient.
Surveys and Questionnaires
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Education
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Gyeongsangbuk-do*
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Humans
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Mental Health
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Mental Health Services
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Mentally Ill Persons*
;
Single Person
2.Updates on Neuroimaging of Posttraumatic Stress Disorder: Focused on Responses to Fearful Facial Expression.
Yoo Ra KIM ; Jeong Ho CHAE ; Kyoung Uk LEE
Korean Journal of Psychopharmacology 2011;22(3):127-133
The neurobiological basis of emotional recognition, processing and regulation has been extensively studied over the past years. Especially, posttraumatic stress disorder (PTSD) can be conceptualized as a dysfunction of fear circuit, thus, many studies focused on neural substrate of fear using functional neuroimaging. Neuroimaging studies of PTSD have suggested that the amygdala is hyperresponsive to fearful stimuli, which may be related to hyperarousal or reexperience symptoms of PTSD. The medial prefrontal cortex is hyporesponsive and fails to inhibit the amygdala. Researches also have acknowledged that abnormal activities in ventromedial prefrontal cortex and hippocampus might be associated with impairment of extinction of traumatic memory. Recent researches using facial emotional stimuli have suggested that PTSD involved not only dysfunction of fear circuit but also dysregulation of basic emotional processing. Despite the progress, many points are left which are yet to be clarified. Fear conditioning, contextualization, habituation and extinction should be investigated using novel paradigms that can explain the complexity of PTSD.
Amygdala
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Facial Expression
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Functional Neuroimaging
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Hippocampus
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Memory
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Neuroimaging
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Prefrontal Cortex
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Stress Disorders, Post-Traumatic
3.Therapeutic Application of Transcranial Magnetic Stimulation (TMS) in Depression.
Jeong Ho CHAE ; Chang Uk LEE ; Won Myong BAHK
Korean Journal of Psychopharmacology 2003;14(2):77-83
OBJECTIVE: Transcranial magnetic stimulation (TMS) is a new, noninvasive procedure of a localized pulsed magnetic field to the surface of the head to cause a depolarization of neurons in the brain cortex underneath. Knowledge of the neuroanatomic abnormalities of depression is serving as the background for TMS treatment in depression. Here we provide a summarized review of the therapeutic application of TMS in patients with depression. METHODS: We described the clinical and basic researches of TMS in depression and integrated the future direction using literature review and interview with experts. RESULTS: The field of TMS is beginning to address the issues of using TMS as a novel antidepressant. The ability to excite local areas of brain cortex has raised the possibility of the use of TMS as a novel therapeutic tool for depression. CONCLUSIONS: Many parameters, such as intensity, location, frequency, pulse width, intertrain interval, coil type, duration, numbers of sessions, and interval between sessions remain to be systematically explored. However TMS would be a relatively new and noninvasive method to investigate regional brain activity and to treat depression.
Brain
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Depression*
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Head
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Humans
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Magnetic Fields
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Neurons
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Transcranial Magnetic Stimulation*
4.Identification of a new bovine picornavirus (Boosepivirus) in the Republic of Korea
Jeong-Byoung CHAE ; Seung-Uk SHIN ; Serim KIM ; Hansong CHAE ; Won Gyeong KIM ; Joon-Seok CHAE ; Hyuk SONG ; Jung-Won KANG
Journal of Veterinary Science 2024;25(5):e59-
Objective:
To identify, for the first time, the prevalence and impact of Boosepivirus (BooV) on calf diarrhea in the ROK.
Methods:
Here, the unknown cause of calf diarrhea was determined using metagenomics We then explored the prevalence of certain pathogens, including BooV, that cause NCD. Seventy diarrheal fecal samples from Hanwoo (Bos taurus coreanae) calves were analyzed using reverse transcriptase and quantitative real-time polymerase chain reaction for pathogen detection and BooV isolate sequencing.
Results:
The complete genome of BooV was detected from unknown causes of calf diarrhea.And also, BooV was the most frequently detected pathogen (35.7%) among 8 pathogens in 70 diarrheic feces from Hanwoo calves. Co-infection analyses indicated that most BooV-positive samples were solely infected with BooV, indicating its significance in NCD in the ROK. All isolates were classified as BooV B in phylogenetic analysis.
Conclusions
and Relevance: This is the first study to determine the prevalence and molecular characteristics of BooV in calf diarrhea in the ROK, highlighting the potential importance of BooV as a causative agent of calf diarrhea and highlighting the need for further research on its epidemiology and pathogenicity.
5.Adjunctive Low-frequency Repetitive Transcranial Magnetic Stimulation over the Right Dorsolateral Prefrontal Cortex in Patients with Treatment-resistant Obsessive-compulsive Disorder: A Randomized Controlled Trial.
Ho Jun SEO ; Young Eun JUNG ; Hyun Kook LIM ; Yoo Hyun UM ; Chang Uk LEE ; Jeong Ho CHAE
Clinical Psychopharmacology and Neuroscience 2016;14(2):153-160
OBJECTIVE: The present study aimed to evaluate the efficacy of low frequency (LF) repetitive transcranial magnetic stimulation (rTMS) over the right dorsolateral prefrontal cortex (DLPFC) for the treatment of obsessive-compulsive disorder (OCD). METHODS: Twenty-seven patients with treatment resistant OCD were randomly assigned to 3 week either active (n=14) or sham (n=13) rTMS. The active rTMS parameters consisted of 1 Hz, 20-minute trains (1,200 pulses/day) at 100% of the resting motor threshold (MT). OCD symptoms, mood, and anxiety were assessed at baseline and every week throughout the treatment period. RESULTS: A repeated-measures analysis of variance (ANOVA) was used to evaluate changes on the Yale-Brown Obsessive Compulsive Scale (YBOCS). Our results revealed a significant reduction in YBOCS scores in the active group compared with the sham group after 3 weeks. Similarly, a repeated-measures ANOVA revealed significant effect of time and time×group interaction on scores on the Hamilton Depression Rating Scale and the Clinical Global Impression-Severity scale. There were no reports of any serious adverse effects following the active and sham rTMS treatments. CONCLUSION: LF rTMS over the right DLPFC appeared to be superior to sham rTMS for relieving OCD symptoms and depression in patients with treatment-resistant OCD. Further trials with larger sample sizes should be conducted to confirm the present findings.
Anxiety
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Depression
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Humans
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Obsessive-Compulsive Disorder*
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Prefrontal Cortex*
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Sample Size
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Transcranial Magnetic Stimulation*
6.Update on the Evidence Regarding Maintenance Therapy.
Tuberculosis and Respiratory Diseases 2014;76(1):1-7
Maintenance therapy has emerged as a novel therapeutic paradigm for advanced non-small-cell lung cancer (NSCLC). Maintenance therapy that aims to sustain a clinically favorable state after first-line chemotherapy has two strategies. Switch maintenance therapy entails switching to a new and non-cross-resistant agent in an alternating or sequential manner, on completion of first-line chemotherapy. Continuous maintenance therapy keeps ongoing administration of a component of the current regimen after four to six cycles of chemotherapy, if there is a stable disease, or better response. Both maintenance therapies can be continued, until disease progression. The potential evidence regarding maintenance therapy includes providing the opportunity to receive additional treatment, through sustaining tumor shrinkage, and delayed emergence of tumor-related symptom. Thus far, debates over the parameters used to predict the effectiveness of maintenance therapy, financial burden, and uncertainty of improving the quality of life exist. Despite many debates, maintenance therapy, which is currently recommended, has been disclosed to be beneficial.
Carcinoma, Non-Small-Cell Lung
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Disease Progression
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Drug Therapy
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Lung Neoplasms
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Maintenance Chemotherapy
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Quality of Life
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Uncertainty
7.North Korean refugee doctors' preliminary examination scores.
Sung Uk CHAE ; Jeong Hee YANG ; Joon Seop HYUN ; June Hee KIM ; Seok Hoon KANG
Korean Journal of Medical Education 2016;28(4):373-380
PURPOSE: Although there have been studies emphasizing the re-education of North Korean (NK) doctors for post-unification of the Korean Peninsula, study on the content and scope of such re-education has yet to be conducted. Researchers intended to set the content and scope of re-education by a comparative analysis for the scores of the preliminary examination, which is comparable to the Korean Medical Licensing Examination (KMLE). METHODS: The scores of the first and second preliminary exams were analyzed by subject using the Wilcoxon signed rank test. The passing status of the group of NK doctors for KMLE in recent 3 years were investigated. The multiple-choice-question (MCQ) items of which difficulty indexes of NK doctors were lower than those of South Korean (SK) medical students by two times of the standard deviation of the scores of SK medical students were selected to investigate the relevant reasons. RESULTS: The average scores of nearly all subjects were improved in the second exam compared with the first exam. The passing rate of the group of NK doctors was 75%. The number of MCQ items of which difficulty indexes of NK doctors were lower than those of SK medical students was 51 (6.38%). NK doctors' lack of understandings for Diagnostic Techniques and Procedures, Therapeutics, Prenatal Care, and Managed Care Programs was suggested as the possible reason CONCLUSION: The education of integrated courses focusing on Diagnostic Techniques and Procedures and Therapeutics, and apprenticeship-style training for clinical practice of core subjects are needed. Special lectures on the Preventive Medicine are likely to be required also.
Clinical Competence
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Democratic People's Republic of Korea
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Diagnostic Techniques and Procedures
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Education
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Foreign Medical Graduates
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Humans
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Lectures
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Licensure
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Managed Care Programs
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Prenatal Care
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Preventive Medicine
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Refugees*
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Students, Medical
8.The Changes of short-term memory and Autonomic neurocardiac function after 4-10Hz sound and light stimulation: A pilot study.
Seung Hwan LEE ; Jin Hwan KIM ; Joong Kyu PARK ; Kyung Uk LEE ; Dae Hyun YANG ; Sun Hee KIM ; Jeong Ho CHAE
Sleep Medicine and Psychophysiology 2004;11(1):29-36
OBJECTIVES: Sound and light (SL) stimulation has been used as a method to induce some useful mental states in the fields of psychology and psychiatry. It is believed that sound and light entrainment device (SLED) has some specific effects through synchronization of EEG in patients who use it. Theta frequency is believed to stimulate deep relaxation and short term memory processing. This study was conducted to evaluate if 4-10Hz SL stimulation can induce relaxation and improve short term memory function. METHODS: Ten medical students with no medical or psychiatric problems participated in this study. Subjects were randomly divided into two groups. One group was applied with real SLED was applied to one group (R group) and pseudo SLED to the other group (P group). The two groups were exposed to SL stimulation with SLED 15 minutes a day for 5 days, and after two days rest the two groups were switched over. The Korea Wechsler Adult Intelligence Scale (K-WAIS), Academic Motivation Tests (AMT), Test Anxiety Scale (TAS), Korea Auditory Verbal Learning Test (K-AVLT), and digit span were used to evaluate short term memory. Spielberger's State-Trait anxiety inventory and heart rate variability (HRV) test were used to evaluate degree of relaxation. RESULTS: Compared with S group, R group showed a significant improvement in K-AVLT and digit span after a single application of SL stimulation. But 5-day long application did not reveal any differences between the two groups. A significant change in HRV was observed in 5-day long application of SL stimulation after being switched over to other SLED. CONCLUSION: This pilot study suggests that 4-10Hz SL stimulation has some positive influences on short term memory and relaxation.
Adult
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Anxiety
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Electroencephalography
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Heart Rate
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Humans
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Intelligence
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Korea
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Memory
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Memory, Short-Term*
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Motivation
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Pilot Projects*
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Psychology
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Relaxation
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Students, Medical
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Test Anxiety Scale
;
Verbal Learning
9.Hallux Rigidus with Osteochondroma of the Hallucal Proximal Phalanx (A Case Report).
Soo Uk CHAE ; Yeung Jin KIM ; Hyang Jeong JO ; Deok Hwa CHOI ; Myoung Soo CHA
Journal of Korean Foot and Ankle Society 2013;17(1):60-63
Small osteophytes are frequently encountered in the foot and ankle, and not to be confused with true osteochondromas, which are relatively uncommon in this region. Osteochondromas are the most common benign osseous neoplasm, occurs in the metaphysis of the long bone. It is rarely found in bones of the foot. Treatment of the osteochondroma is usually conservative, unless symptoms usually pain, are progressive rapid growth, and malignant transformation is suspected. We experienced a rare case of hallux rigidus with osteochondroma of the hallucal proximal phalanx which cause pain and corn of the plantar.
Animals
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Ankle
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Foot
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Hallux
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Hallux Rigidus
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Osteochondroma
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Osteophyte
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Zea mays
10.Development and Standardization of Extended ChaeLee Korean Facial Expressions of Emotions.
Kyoung Uk LEE ; Jieun KIM ; Bora YEON ; Seung Hwan KIM ; Jeong Ho CHAE
Psychiatry Investigation 2013;10(2):155-163
OBJECTIVE: In recent years there has been an enormous increase of neuroscience research using the facial expressions of emotion. This has led to a need for ethnically specific facial expressions data, due to differences of facial emotion processing among different ethnicities. METHODS: Fifty professional actors were asked to pose with each of the following facial expressions in turn: happiness, sadness, fear, anger, disgust, surprise, and neutral. A total of 283 facial pictures of 40 actors were selected to be included in the validation study. Facial expression emotion identification was performed in a validation study by 104 healthy raters who provided emotion labeling, valence ratings, and arousal ratings. RESULTS: A total of 259 images of 37 actors were selected for inclusion in the Extended ChaeLee Korean Facial Expressions of Emotions tool, based on the analysis of results. In these images, the actors' mean age was 38+/-11.1 years (range 26-60 years), with 16 (43.2%) males and 21 (56.8%) females. The consistency varied by emotion type, showing the highest for happiness (95.5%) and the lowest for fear (49.0%). The mean scores for the valence ratings ranged from 4.0 (happiness) to 1.9 (sadness, anger, and disgust). The mean scores for the arousal ratings ranged from 3.7 (anger and fear) to 2.5 (neutral). CONCLUSION: We obtained facial expressions from individuals of Korean ethnicity and performed a study to validate them. Our results provide a tool for the affective neurosciences which could be used for the investigation of mechanisms of emotion processing in healthy individuals as well as in patients with various psychiatric disorders.
Anger
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Arousal
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Facial Expression
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Female
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Happiness
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Humans
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Male
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Neurosciences