• Journal of Physiology & Pathology in Korean Medicine
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• v.38 no.5
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• pp.161-167
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• 2024

As a previous study to determine the factors influencing the level and variability of Chiljeong, the influence of Sasang Constitution and MBTI preferences on mood level and variability was examined. Among the 87 students of Korean Medicine attending D University who completed the Sasang Constitutional test and MBTI personality test, a Mood Survey was conducted and 83 of them were selected. Data were analyzed using the chi-squared test, ANOVA, independent sample t-test, and nonparametric test in IBM SPSS 22.0 for Windows. The mood level in Sasang Constitutions was highest in Soyang-in and Soeum-in, while Taeeum-in, Taeyang-in, and unclassified showed no differences. There was no difference in mood variability among Sasang Constitutions. The mood level was influenced by the direction of energy of MBTI preferences. There was no difference in mood variability between MBTI preferences. The mood level was influenced by Sasang Constitution and the direction of energy of MBTI preferences, but mood variability was not influenced by them.

• The Journal of the Society of Korean Medicine Diagnostics
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• v.12 no.2
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• pp.84-95
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• 2008

Background and purpose: Health is characterized by variability and a loss variability is associated with aging and disease. Normal healthy respiratory patterns are characterized by breath to breath variability. The aim of this study is to analyze Correlation Analysis of 10 respiratory indices(include breath to breath variability) and K-POMS factors score. Method: Respiratory data were measured during 15 minutes and transferred to text file. We calculated 10 respiratory parameters in use of MATLAB7.1. After then do correlation analysis of 10 respiratory indices and K-POMS factors score. Result and conclusion: Respiratory variability is showed significant correlation with vigor factor. Respiratory rate is showed significant correlation with depression factor.

• Journal of Oriental Neuropsychiatry
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• v.26 no.1
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• pp.11-22
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• 2015

Objectives: The purpose of this study is to find the relationship between Chiljeong, as a stress factor and pathological symptoms, by using Several Mood state Questionnaires. Methods: A total of 144 students of Dongshin University Oriental Medicine responded to the Questionnaires for Sasang Constitution Classification II (QSCCII) and regarding several mood states. In this study, 132 students' data were used, excluding the data from 12 of the students. The included 132 students were classified into four groups according to QSCCII. The effects of Chiljeong as a stress factor in diseases were determined by Several mood state Questionnaires. These data were analyzed by frequency, Person's chi-square Test, ANOVA, Scheffe, Multiple Comparison, and Correlation using IBM SPSS 19.0K for Windows. Results: 1. Sasang Constitution made no difference on the level of mood and the variability of mood. 2. In physical symptoms scale, the average of "Noh" was higher than that of other emotions in Gastrointestinal, Cardiovascular, and Pain symptoms. The average of "Gyeong" was higher than that of other emotions in Insomnia symptoms.

• Korean Journal of Biological Psychiatry
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• v.28 no.1
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• pp.7-12
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• 2021

Considering that the aged population increases and the mobility problem is pointed out as a factor that indisposes the quality of life, cognition, and mood, it is important to understand and evaluate the elderly's mobility. Factors that deteriorate mobility in the elderly include physical senility, various health changes including chronic diseases, polypharmacy as well as anticholinergics. Common mobility problems in old age are reduced gait speed, increased gait variability in walking length, careless walking, and frequent falls. Several studies have reported that decreased mobility and deterioration of gait can predict cognitive decline and emotional problems. Aerobic exercise, resistance exercise, and balance exercise are suggested as therapeutic interventions for mobility problems. Active correction for factors that reduce mobility in the elderly and prescribing physical activity can conserve the elderly's quality of life and help improve cognition and mood. There is a need for related research in the future.

• Journal of People, Plants, and Environment
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• v.22 no.1
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• pp.109-118
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• 2019

Physical activities in the forest environment stimulate the parasympathetic nervous system of humans and have positive effects on the autonomic nervous system as well as moods and emotions. However, there are almost no studies on the benefits of exercise in the forest environment for patients with myocardial infarction. The aim of this study was to investigate the effects of 15-minute single session walking by myocardial infarction patients in the forest and urban environment on the physiological and psychological states. The heart rate variability was measured in 10 patients with myocardial infarction to assess physiological state after single session walking for 15 minutes in the forest environment and urban environment. In order to evaluate the psychological state, a profile of mood scale (POMS) and semantic differential (SD) questionnaire were used. The results of this study showed that 15-minute single session walking in the forest environment activated the parasympathetic nervous system of adult myocardial infarction patients more than 15 minutes of single session walking in the urban environment, and also made them feel more positive in terms of the POMS and SD. Therefore, this study suggests that even single session walking in the forest environment can positively influence the physiological and psychological states of adult heart disease patients and may also contribute to health care.

• Journal of People, Plants, and Environment
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• v.22 no.3
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• pp.309-319
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• 2019

This study was conducted to investigate the effects of watching a virtual reality (VR) forest video on stress reduction in adults. Experiments were performed in an artificial climate chamber where temperature, humidity and illumination were controlled. To cause stress in subjects, the subjects were asked to multiply two digit numbers by one digit numbers for two minutes. The subjects then watched a VR forest video for five minutes. During the experiment, the heart rate variability (HRV) and heart rate (HR) of subjects were continuously measured for evaluating their physiological state. After measuring the baseline and watching a VR forest video, their psychological state was evaluated using the profile of mood state (POMS), semantic differential (SD) method, and positive affect and negative affect schedule (PANAS). The results of physiological evaluation after watching a VR forest video showed a decrease in the stress index and HR, an increase in the activity of the parasympathetic nervous system, and the standard deviation of normal to normal RR intervals (SDNN). The results of psychological assessment confirmed that watching a VR forest video induced "comfort", "natural", and "soothed" feelings in subjects. In addition, watching a VR forest video decreased "tension-anxiety (T-A)", "depression-dejection (D)", "anger-hostility (A-H)", "fatigue (F)", "total mood disturbance (TMD)", and increased "vigor (V)" compared to the base line, and decreased "negative affect" and increased "positive affect." These results indicate that watching a VR forest video decreases adults' stress index, stabilizes physiological state, and has a positive impact on psychological state. The findings of this study can serve as a basis for providing forest welfare services to people in the blind spots of forest welfare, and can lay a foundation for the adoption of VR, one of the technologies of the fourth industrial revolution in forestry.

• Anxiety and mood
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• v.20 no.2
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• pp.35-40
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• 2024

Objective : Reduced resting heart rate variability (HRV) is well-documented in anxiety and mood disorders; however, limited research exists on HRV reactivity during emotional processing. This study examined HRV reactivity to angry faces in social anxiety disorder (SAD) patients and its association with symptom severity. Methods : Twenty-six SAD patients and 35 controls participated. HRV was measured using the root mean square of successive differences (RMSSD). RMSSD reactivity was calculated by subtracting RMSSD during angry and neutral face processing from baseline RMSSD. Group differences in RMSSD reactivity and its relationship with social anxiety symptoms were analyzed. Results : SAD patients exhibited lower RMSSD reactivity compared to controls during both angry (t_54.829=3.03, p=0.004) and neutral face processing (t_52.877=2.18, p=0.034). In the SAD group, RMSSD reactivity during angry face processing significantly explained variance in performance avoidance subscale scores of the Liebowitz Social Anxiety Scale (R²=0.208, β=-0.456, F_1,23=6.054, p=0.022). Conclusion : Reduced HRV reactivity in SAD may reflect impaired autonomic flexibility and difficulty responding to emotionally relevant stressors. Lower HRV reactivity is associated with greater symptom severity, specifically performance-related avoidance, highlighting HRV's potential as a physiological marker for identifying specific symptoms in SAD.

• Anxiety and mood
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• v.3 no.1
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• pp.26-31
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• 2007

Object : This study was designed to assess the change of heart rate variability (HRV) during stimulation test among the patients with major depressive disorder. Methods : 15 patients with major depressive disorder (MDD) and 15 normal controls were enrolled in this study. We sequentially measured HRV at baseline, during cognitive stimuli and emotional stimuli. Results : There are significant differences between the two groups in HRV index, TINN on baseline state and under cognitive stimulus. Conclusion : Stimulation protocol using HRV can be useful in estimating autonomic nervous function.

• Anxiety and mood
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• v.6 no.2
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• pp.102-108
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• 2010

Objective : Although studies have explored responses to fear had been assessed using various psychophysiological methods, results have been inconsistent. The present study examined psychophysiological responses in healthy subjects after viewing fear stimuli in a video clip for set up future fear related psychophysiological studies. Methods : We monitored three psychophysiological variables (electroencephalography, skin temperature, and heart rate variability) in adults who watched either a control stimulus movie clip or a fear-inducing movie clip. Results : In 16 healthy adults, theta activity decreased significantly after the fear stimulus as compared to the normal stimulus. However the participants showed no differences in heart rate variability or skin temperature between the fear and normal control stimulus situations. Conclusion : In the limbic area, theta activity corresponds with information processing, integration into previous memories and long-term potentiation. In this study, we suggest decreased theta activity represents amygdalo-hippocampal activity, associated with fear, short-term memory, and memory extinction in the healthy adults. Further studies are needed to evaluate the interaction of fear, memory, and the pathophysiology of anxiety disorder in patient with anxiety disorders.

• Anxiety and mood
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• v.2 no.2
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• pp.101-107
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• 2006

Object : Since autonomic nerve system dysfunction was known as the mechanism of panic disorder, many researchers used heart rate variability (HRV) as means of measuring autonomic nerve function of patients with panic disorder. We aimed to examine the effect of paroxetine medication for 3 months on symptom improvement and change of heart rate variability of the patients with panic disorder. Methods : The subjects were patients with panic disorder who visited the psychiatric outpatient clinic of Samsung Medical Center in Seoul. We included panic disorder patients who were aged from 20 to 50 and in normal BMI range (from 18 to 30) to minimize the effect of age and weight on HRV data. We excluded the patients with EKG abnormalities, hypertension or other major psychiatric disorders. They took 20-40 mg paroxetine medication a day for 3 months. Alprazolam was used only during the first month to control the acute panic symptoms and was tapered off after that. We measured the acute panic inventory (API), Hamilton rating scale for anxiety and depression (HAM-A & HAM-D), Spielberger state-trait anxiety inventory (STAIS, STAIT), and Beck depression inventory (BDI) in order to assess clinical improvement of the patients. And we measured time and frequency domain HRV in the resting, standing and cognitive stress states to assess the change of HRV. All measurements were done before and after paroxetine treatment. Result : After paroxetine medication, patients showed significant improvement in all psychiatric scales. In time domain of HRV, standard deviations of all R-R intervals (SDNN) were significantly increased in all states. In frequency domain of HRV, the ratio of high frequency to total power (HF/TP) in the standing state was significantly increased. Conclusion : After 3 months paroxetine medication, panic disorder patients showed significant clinical improvement and change in HRV data such as SDNN in all states and HF/TP ratio in the standing state. This result suggests that paroxetine medication is effective for the improvement of autonomic nerve system dysfunction in panic disorder patients.