• 한국음향학회:학술대회논문집
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• 한국음향학회 1998년도 학술발표대회 논문집 제17권 1호
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• pp.291-296
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• 1998

In the experiment carried out on 20 college students, recorded were frontal, temporal and occipital EEG, skin conductance response, skin conductance level, heart rate and respiration rate during listening to two music fragments with different affective valences and white noise administered immediately after negative visual stimulation. Analysis of physiological patterns observed during the experiment suggests that affective auditory stimulation with music is able to selectively modulate autonomic and cortical activity evoked by preceding aversive visual stimulation and to restore initial baseline levels. On other hand, physiological responses to white noise, which does not possess emotion-eliciting capabilities, evokes response typical for orienting reaction after the onset of a stimulus and is rapidly followed by habituation. Observed responses to white noise were similar to those specific to attention only and had no evidence for any emotion-related processes. Interpretation of the obtained data is considered in terms of the role of emotional and orienting significance of stimuli, dependence of effects on the background physiological activation level and time courses of attention and emotion processes. Physiological parameters are summarized with regard to their potential utility in differentiation of psychological processes induced by auditory stimuli.

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2007년도 동계학술발표대회 논문집
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• pp.23-28
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• 2007

In most existing research, it is difficult to evaluate thermal comfort exactly because of reflecting individual ideal or psychological response by subjective questions. Physiological variable was selected in this study to evaluate objectively thermal comfort. MST was appeared very sensitively in indoor temperature and can express correctly thermal comfort of human body. The results of CSV are different each individual feeling sensation, so is difficult to evaluate detailedly thermal comfort unlike TSV. But the results of PP, AIx, ED, SEVR are greatly related to temperature change. So thermal comfort is evaluated more objectively by using PP, AIx, ED, SEVR on behalf of TSV, CSV. Human body was presented physiological feedback by temperature impetus and specially, tendency of heart rate agree with temperature change. Physiological reaction was showed sufficient possibility availing evaluation index of thermal comfort. In the future another one needs to review beside the selected physiological variable.

• 대한간호학회지
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• 제30권3호
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• pp.606-618
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• 2000

The purpose of this study was to identify the level of Symptoms of Stress, Stress Reaction, Health Promoting Behavior, and Quality of Life in Korean Immigrant Middle Aged Women. The subjects of this study were 33 middle aged women who live in Seattle, Washington, U.S.A. Data collection was performed at the U.W from Oct. 1998 to May. 1999. Data collection time was one hour and data was collected through 4 types of questionnaires : SOS, Health Promoting Behaviors, Quality of Life and Demographic data form, and the Physiologic Stress Profile was collected by J&J I-410 biofeedback equipment. The data was analyzed by descriptive statistics and the pearson correlation coefficient using the SAS program. The results of this study are as follows: 1. The level of physiological stress reaction and stress symptoms showed high level and quality of life showed low in general. 2. The Stress Reaction and Symptoms of Stress showed significant negative correlation with health promoting behavior, quality of life in the middle aged women. 3. The health promoting behavior showed significant positive correlation with quality of life in the middle aged women. In conclusion, the physiological stress reaction, symptoms of stress, and health promoting behavior were major influencing factor to quality of life in Korean Immigrant Women. From the results of the study, the following recommendations are presented as follow: 1. It is suggested that the study for developing the health promotion program focused on stress self-regulation for Korean immigrant women. 2. It is suggested that the comparative study for Korean immigrant women and Women in Korea. 3. It is necessary to broaden the scope of nursing practice for middle aged healthy women, so nurses can include a health promotion program focused on stress self-regulating as part of nursing care.

• Journal of Mechanical Science and Technology
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• 제17권2호
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• pp.296-309
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• 2003

The periodicity of the physiological flow has been the major interest of analytic research in this field up to now Among the mechanical forces stimulating the biochemical reaction of endothelial cells on the wall, the wall shear stresses show the strongest effect to the biochemical product. The objective of present study is to find the effects of velocity waveform on the wall shear stresses and pressure distribution along the artery and to present some correlation of the velocity waveform with the clinical observations. In order to investigate the complex flow phenomena in the bifurcated tube, constitutive equations, which are suitable to describe the rheological properties of the non-Newtonian fluids, are determined, and pulsatile momemtum equations are solved by the finite volume prediction. The results show that pressure and wall shear stresses are related to the velocity waveform of the physiological flow and the blood viscosity. And the variational tendency of the wall shear stresses along the flow direction is very similar to the applied sinusoidal and physiological velocity waveforms, but the stress values are quite different depending on the local region. Under the sinusoidal velocity waveform, a Newtonian fluid and blood show big differences in velocity. pressure, and wall shear stress as a function of time, but the differences under the physiological velocity waveform are negligibly small.

• 대한인간공학회지
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• 제17권2호
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• pp.65-82
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• 1998

To investigate the difference of sweating reaction by the somato types, we measured total sweat rate, local sweat rate, skin temperature, physiological reaction and psychological reaction at $25{\pm}1^{\circ}C$ and $29{\pm}1^{\circ}C$ under laboratory conditons. Nine healthy adult females were divided into three somato types : slender (3), normal (3) and obese (3). The results were as follows ; Total sweat rate was highest in the obese type, followed by the normal and slender types in order. Local sweat rate was highest in the infrascapular area, and then came breast, the back of the hand, upper ann, anterior leg, and anterior thigh in all somato types. Mean skin temperature was highest in the slender type, and followed the normal and obese types. Rectal temperature, blood pressure and pulse rate were highest in the obese type. Psychological reaction appeared 'hot', 'humid', 'sweaty' as ambient temperature went up. Somato types made little difference in psychological reaction.

• Asian-Australasian Journal of Animal Sciences
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• 제30권9호
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• pp.1350-1357
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• 2017

Objective: The present study aimed to investigate whether the long-lasting, recurrent restricting of sows leads to the physiological and psychological reaction of discomfort. Methods: Sows (Large White) that had experienced restricting for about 0.5 or 3 years and agematched sows kept in a group housing system (loose sows) were compared. Pupillary light reflex parameters were measured at the weaning stage. Immediately after slaughter, blood samples were taken to measure serum cortisol levels, and the brain was dissected, gene expression in the hippo-campus, frontal cortex and hypothalamus was analyzed. Results: The serum cortisol levels were higher in the confined sows than in the loose sows. The full maturity, but not the young adolescent, confined sows had longer latency time in the onset of pupil constriction than their loose counterparts. Real-time polymerase chain reaction analyses revealed an increased expression of interleukin 6 mRNA in the hippocampus and decreased expression of brain derived neurotrophic factor mRNA in hippocampus and hypothalamus and to a lesser extent in the frontal cortex of the full maturity confined sows, compared with the full maturity loose sows. Conclusion: Taken together, these data indicated that recurrent restricting stress in full maturity sows leads to the physiological and psychological reaction of discomfort.

• 동의생리병리학회지
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• 제16권1호
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• pp.165-171
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• 2002

The purpose of this research was to investigate effects of Hyunsamchungpye-eum(HSCPE) on the anti-inflammatory/anti-allergic reaction in vivo and in vitro. HSCPE reduced the acute hind paw edema induced by histamine, the permeability of evans blue into peritoneal cavity. HSCPE inhibited the passive cutaneous anaphylaxis reaction in rat, the lethal anaphylaxis and degranulation of peritoneal mast cells induced by compound 48/80 in mice, HSCPE did not affect the Arthus reaction, but decreased the delayed type hypersensitivity induced by SRBC, contact dermititis induced by DNFB. These results suggest that HSCPE have an anti-inflammatory and anti-allergic action.

• 동의생리병리학회지
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• 제16권5호
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• pp.1009-1015
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• 2002

The purpose of this research was to investigate the effect of Yonggak-san (YGS) on the anti-allergic reaction in vivo and in vitro. Administration of YGS(500 mg/kg) enhanced hemaggutination(HA)titer against SRBC. On the while, YGS inhibited hyaluronidase activity in vitro and passive cutaneous anaphylaxis reaction, lethal anaphylaxis and mortality induced by compound 48/80 in mice, YGS decreased Arthus reaction, acute hind paw edema induced by histamine. But YGS did not affect delayed type hypersensitivity induced by SRBC. These results suggest that YGS have anti-allergic action

• 한국동물학회지
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• 제39권2호
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• pp.182-189
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• 1996

It has been known that spermatozoa should obtain their fertilizing ability through capacitation and acrosome reaction, and that in these processes of fertilization, Ca2+ platys an important role for their conjugation. Therefore the present study has been designed in order to clarify the effect of fluctuation of the media Ca2+ level and the intracellular concentration of the spermatozoa on the acrosomes. During the incubation of spermatozoa, a considerable fluctuation in the media Ca2+ level has been observed after the BSA administration and the media concentration of Ca2+. It is deduced that these fluctuation rates may have an effect on the acrosome reaction. The fluctuation of K+ flux has been observed in accordance with the incubation period over time, and it's concentration seems to be closely related with the acrosomal reaction. The respiratory exchange rate (RERI of the spermatozoa is kept more regular in the BSA and Cacl2 administration groups than the non-administration group. Based on the experimental findings, it is possible to deduce a hypothesis from these findings that physiological activities of the acrosome reaction are not functionally related to the media Ca2+ level and the intracellular influx of Ca2+ concentration, although Ca2+ platys an important role as a stimulating factor in the acrosome reaction.

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 1998년도 춘계학술발표 논문집
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• pp.44-56
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• 1998

Effects of the music and white noise on recovery of the autonomic and cortical responses evoked by aversive visual stimulation were analyzed in 20 subjects. It was suggested that the music is able to exert modulatory influence on the physiological activity resulted from exposure to unpleasant IAPS based stimuli. Spectral power of DDG, heart rate(HR)respiration rate (RSR) and electrodermal activity(EDA)were recorded and analyzed for each experimental condition. It was observed HR and RSR deceleration, increased EDA and electrocortical activation expressed in decreased alpha power and increase of delta activity ao occipital and frontal areas. Obtained results suggest that audutory stimulation both with pleasant and sad music lead to restoration of pre-stimulation activation levels of most physiological parameters during listenning to music and in post-stimulation period. White noise evoked short-term physiological responses typical for orienting reaction and quite distinct from changes produced by music. Available data to differentiate effeces among pleasant and sad music, due toqualitative similarities of physilolgical patterns, but suppert an assumption that music is capable to facilitate the process of recovery of physilolgical responses elicited by visual stimulation of negative valence, thus positively modulate post-stress state.