• Sleep Medicine and Psychophysiology
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• v.7 no.2
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• pp.109-114
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• 2000

Objectives: This study was performed to examine the characteristic cardiovascular response patterns associated with the imagination and discussion of anger-provoked events in patients with hwa-byung. Methods: Forty-three female patients with hwa-byung were evaluated with the Korean version of the State-Trait Anger Expression Inventory, the State-Trait Anxiety Inventory, Hamilton Rating Scale for Anxiety, Beck Depression Inventory, and Hamilton Rating Scale for Depression just before the task. Subjective Units of Distress (SUDS) and Vividness of the event (VIVID) during the imagination and discussion of the event were evaluated immediately after tasks. Blood pressure (BP) and heart rate (HR) during baseline, rest, and tasks were also evaluated. Results: Both startle and recovery responses of BP, startle response of HR, SUDS, and VIVID in discussion task were significantly larger than in the imagination task. Conclusion: Results suggest that it is undesirable for the patients to excessively and repeatedly recall and talk about the anger events.

• Science of Emotion and Sensibility
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• v.3 no.2
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• pp.103-112
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• 2000

본 연구는 Graphic simulator에서 자동차 속도 변화에 따른 운전자의 감성변화를 주관적 평가와 자율신경계의 반응을 통해 알아보고자 한다. 속도 변화는 정차(0km/h), 40km/h, 100km/h, 160km/h로 제시하였고, 건강한 10명의 피험자를 대상으로 심박변화율, 피부저항, 피부온도, 맥파 등의 생리신호를 측정하였다. 본 연구 목적에 적절한 속도 관련 어휘를 추출하여 각 속도에서의 주관적 감성 변화를 평가하였다. 또한, 각 속도 실험 전 후에 Simulator Sickness를 측정하여 Simulator Sickness가 실험 결과에 미치는 영향을 분석하였다. 속도가 증가함에 따라 긴장도와 쾌도가 증가한다는 주관적 평가 결과를 얻었다. 실험 전에 비해 실험 후의 Simulator Sickness 값은 증가하였지만 실험 전, 후의 통계적 차이는 관찰할 수 없었다. 속도 증가에 따라, 평균 R-R간격, 피부온도의 진폭은 감소하였고, 피부저항은 증가하였고, 맥파의 평균 진폭은 감소하였다. 그러므로 본 연구를 통해 Simulator Sickness의 큰 영향 없이 Graphic Simulator에서 속도의 증가에 따라 교감신경계가 활성화됨을 관찰할 수 있었고, 이는 실제 동적 환경에서 속도 변화에 따른 자율신경계의 반응 및 주관적 평가 결과와 일치하는 것이다. 향후 복합 감각 자극이 가능한 시뮬레이터가 구축이 될 것이고, 이를 통해 보다 현실감 있는 동적 환경 제시와 감성 측정이 가능할 것이다.

• Journal of the Korean Institute of Landscape Architecture
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• v.43 no.5
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• pp.1-12
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• 2015

This study analyzes the physiological healing effects on users according to forest types. Forest types are classified into Chamaecyparis obtusa, Quercus serrata and Pinus densiflora and the subjects of this study, 64 hypertensives, 59 diabetics and 59 ordinary people, were tested to observe their physiological effects. The index of physiological reaction comprises electroencephalogram(EEG), heart rate variability(HRV), blood pressure and cortisol level. An analysis of the stress-buffering effect from the physiological reactions of the overall subjects indicates that Quercus serrata forests have a higher stress-buffering effect than others in terms of central nervous, endocrine and autonomic nervous systems. Chamaecyparis obtusa forests are contributory to soothing stress in the central nervous and endocrine systems. Pinus densiflora forests contribute in some indexes of the endocrine and autonomic nervous systems. In contrast, Pinus densiflora forests are less influential on a stress-buffering effect than the other two. In the level of the effect for lowering blood pressure, Chamaecyparis obtusa and Quercus serrata forests are more effective than Pinus densiflora forests. Therefore, staying in the first two forests can heighten the healing effect of the lowering of blood pressure for hypertensive patients. Every forest is efficacious to lowering diabetic blood glucose levels. Spending time in Quercus serrata forests is more effective for hypoglycemic.

• Science of Emotion and Sensibility
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• v.4 no.2
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• pp.89-93
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• 2001

Human arousal represents one of human emotion dimension. Its effort on human performance has been generally accepted at a invert-cup trend. h optimal range of human arousal enhances human performance However, definition of arousal is not Vet clear. Human arousal has different types depending on the causes. This paper observes different reponses based on different arousals such as cognitive arousal and physical arousal. Twenty undergraduate students participated and experienced cognitive and physical arousals. Their physiological response were analyzed and differentiated between cognitive and physical arousal. Finally, significant difference between them are not shown in autonomic responses but in central nervous responses.

• Sleep Medicine and Psychophysiology
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• v.8 no.1
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• pp.45-51
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• 2001

Objectives: The experience of traffic accident is a kind of the psychosocial stressors to person. The traffic accident-related patients may show the psychophysiologic hyperarousal. So we examined the differences of psychophysiologic response between patients with and without the memory of experienceing a traffic accident. Methods: Twenty-four traffic accident-related patients were divided into two groups according to ther memory of a traffic accident. In psychological assessment, levels of anxiety and depression were evaluated by State-Trait Anxiety Inventory, Beck's Depression Inventory, and Hamilton Rating Scales For Anxiety and Depression. Heart rate, electrodermal response (EDR), and electromyographic activity (EMG) were measured by biofeedback system, and systolic and diastolic blood pressure by automated vital sign monitor during baseline, task, and rest periods. We utilized script-driven imagery technique as a stressful task. The patients listened to the script describing their own traffic accident experience and were instructed to imagine the event during the task period. Statistically analytic data were obtained from the differences of psychological and psychophysiologic data between two groups. Results: The memory group did not show significantly higher EDR than the none memory group, but showed higher tendency during baseline, imagery, and rest periods. The memory group showed significantly lower EMG than the none memory group during rest period. However, there were no differences in other psychophysiologic reponses between the two groups. Conclusion: Our results showed that the memory group had higher tendency in autonomic arousal level such as electrodermal response than the none memory group. We suggest that physicians need to minimize repetitive imagery of traffic accident (reexperience), and decrease the autonomic hyperarousal in the treatment of traffic accident-related patients.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2008.10a
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• pp.62-65
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• 2008

White Noise는 일반적으로 이완의 감성을 유발한다고 알려져 있다. 본 논문에서는 두 종류의 음향에 White Noise를 혼합하였을 때 사용자에게 이완의 감성을 유발시킬 수 있는지 실험을 통하여 검증하였다. 실험은 20명의 피험자를 대상으로 원본 음향과 White Noise가 추가된 음향을 들려주고, 각성-이완에 대한 주관적 설문과 중추신경계 반응 그리고 자율신경계 반응을 측정하였다. 실험결과는 t-test를 통하여 음향 별 감성평가 유의성 검증을 실시하였다. 분석 결과 White Noise가 혼합된 음향은 그렇지 않은 음향에 비해 이완감성 측정값이 큰 것으로 나타났다. 따라서 White Noise가 혼합된 음향은 이완 유발 효과가 크다고 할 수 있다.

• Science of Emotion and Sensibility
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• v.10 no.2
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• pp.273-280
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• 2007

The study is to examine the psychophysiological responses evoked by negative emotions(fear and disgust) in children. 47 children(11-13 years old, 23 boys) participated in the study. While the children were experiencing fear or disgust emotion induced by audio-visual film clips, ECG, EDA, PPG and SKT are measured. Emotion assessment scale was used to confirm that emotions elicited by the film clips were significantly noticeable, which was measured self-report. The results turned out to be 100% and 89.4% of appropriate for fear and disgust emotions, respectively. Emotional intensity the children had experienced was rated as 4.05, 4.07 on 1-5 scale based on effectiveness of measurement of fear and disgust emotion. ANS reponses by fear and disgust were significantly between the resting state and emotional state induced. The result obtained from the fear emotion showed significant increases in SCL, NSCR, HR, RSA, RESP and HF. There was a significant difference in SCL and NSCR between the two emotions.

• Journal of Haehwa Medicine
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• v.21 no.2
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• pp.95-104
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• 2013

스트레스로 인한 인체의 반응은 중추신경계, 시상하부, 변연계 및 기타 표적기관으로부터 시작되는데, 자율신경계 반응, 내분비계 반응, 면역계 반응 등을 통하여 복합적인 신체 증상으로 발현되며, 스트레스 상황에서는 시상하부-뇌하수체-부신 축 (HPA axis)과 교감신경계의 작용으로 여러 신경전달물질 방출에 변화가 생기며 이러한 변화는 면역기전에 중요한 역할을 하고 일부는 면역세포의 활성에 직접적으로 영향을 미쳐 신체 각종 질병의 원인이 될 것으로 추정된다. 한의학에서는 천인상응(天人相應)의 관점에서 육기(六氣)를 생체자극의 외적 요인으로 간주하고, 생체내적 현상인 정신이 외적 자극을 통하여 나타나는 생체반응을 칠정(七情)으로 보았으며, 이러한 관점에서 스트레스는 신체에 오장(五臟)의 허실(虛實), 혈허(血虛), 정손(精損), 기역(氣逆), 기(氣)의 순환장애, 담연(痰涎), 화(火) 등의 병적인 요인을 만들어 준다. 본 연구에서 재료로 사용된 호초 (Piper nigrum Linne)는 후추나무의 과실을 말린 것으로서 세계적으로 널리 사용되는 향신료이며, 한의학에서는 온중제한하기(溫中除寒下氣), 쾌격소담(快膈消痰), 해독(解毒)등의 효능으로 한담식적(寒痰食積) 완복냉통(脘腹冷通) 곽란(癨亂) 토사(吐瀉)등의 치료에 활용되어 왔다. 특히 쾌격소담(快膈消痰)하는 작용은 정신적 스트레스에 유효할 것으로 생각되므로 본 연구에 이용하게 되었다. 실험동물은 ICR계 생쥐를 이용하였으며, 심리적 스트레스는 옆쪽 cage에서 다른 마우스의 신체에 가해지는 전기 충격을 하루 1시간 동안 지켜보게 하는 것으로 유발하였으며, 이 상태에서 약물을 투여한 그룹을 실험군, 그렇지 않은 그룹을 대조군으로 하였다. 정상군은 아무런 자극 없이 하루 1시간 동안 일정 공간에 가두어 두는 것으로 하였다. 실험 결과, 호초(胡椒) 추출물을 100mg/kg/day 용량으로 5일간 투여한 실험군은 아무런 처치를 하지 않은 대조군에 비해 혈장 중 corticosterone 함량이 유의하게 감소되었고, 뇌에서의 noradrenalin 분비량이 유의하게 증가되었으며, plus maze test에서의 머무름 시간이 연장되는 것으로 나타나 호초(胡椒)가 심리적 스트레스를 효과적으로 억제하고 진정작용이 있는 것으로 사료되나 구체적인 작용기전 및 인체에서의 효과에 대해서는 향후의 보다 자세한 연구가 필요할 것으로 생각된다.

• The Journal of Korean Academy of Sensory Integration
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• v.13 no.2
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• pp.75-84
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• 2015

Objective : The aim of this study was to provide mechanism information of a link between arousal and sensory modulation to increase understanding of neurophysiological study. Subject : Optimal arousal state of a child is an important issue in sensory integration therapy. Limbic system and reticular formation are related to sensory modulation by sensory input. Sensory inputs processes from reticular formation to cortex via ascending reticular activation system for moderate arousal. A lot of neurotransmitters such as cholinergic neurons and monoamin neurons help this processes. Mechanism of arousal was measured by functions of central nervous system (CNS) and autonomic nervous system (ANS) using objective tools such as an electroencephalogram (EEG) and electrodermal responses. Functions of CNS and ANS showed differences between normal children and children with disabilities. Optimal sensory input using sensory integration therapy for children with disabilities helps to act reticular formation, limbic system, and cortex and to maintain appropriate arousal. Conclusion : Such quantitative studies by using neurophysiological methods provide evidence for sensory integration therapy.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.6
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• pp.261-271
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• 2019

This study was conducted to investigate the effect of aromatherapy on the autonomic nervous system by the inhalation. The subjects of the study were 64 people aged 20 and under 59 years old, 32 in the experimental group and 32 in the control group. Blending oil with Six aroma(Lavender, Bergamot, Mandarin, Lemon, Cedarwood, Roman Chamomile) was applied to the experimental group, and Jojoba oil was applied to the control group for 30min. Before and after the experiment, HRV(TP, VLF, LF, HF, LF/HF) of the experimental group and the control group were compared and analyzed using pulse wave mesuring instrument(uBioClip v70). There was a significant difference between the experimental group and the control group in 3 out of 5 items analyzed TP(p<.05), LF(p<.05), HF(p<.01). In other words, aromatherapy increases the total activity of the autonomic nervous system by enhancing the TP, increases the activity of the sympathetic and parasympathetic nerves, promotes the activity of the heart, Facilitate the activity of the heart. Therefore, if aromatherapy is used steadily in everyday life, it will enable healthy life by positively affecting the autonomic nervous system response.