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최상섭 ( Sang Sup Choi ),조문재 ( Moon Jae Jho ),이경화 ( Kyung Hwa Lee ),민윤기 ( Yoon Ki Min ),오애령 ( Ae Reyoung Oh ),손진훈 ( Jin Hun Sohn ) 한국감성과학회 1998 추계학술대회 Vol.1998 No.-
This study investigated the psychological and physiological responses to the sound of car horns produced by different manufacturers. Ten female college students listened to the sound of the horns while their EEG responses on 6 sites were being measured, and rated each hom on psychological scales. Their EEG and psychological responses were investigated as to whether the responses were related to the loudness, sharpness, tonality, and roughness of the horns. The results indicated that the subjects felt more ``dominated`` as the loudness and sharpness increased, that the subjects felt more ``pleasant`` as the sharpness increased, that the subjects felt more ``dominant`` as the tonality increased, and that the subjects felt more ``aroused`` as the roughness increased. The physiological results showed that the fast alpha wave in the occipital lobe decreased in the relative power as the loudness, sharpness, and tonality increased, and that the delta wave in the occipital lobe increased and the slow alpha wave in the frontal lobe decreased in the relative power as the roughness increased.
문성실 ( Sung Sil Moon ),최상섭 ( Sang Sup Choi ),류창수 ( Chang Su Ryu ),김경옥 ( Kyung Ok Kim ),손진훈 ( Jin Hun Sohn ) 한국감성과학회 1998 춘계학술대회 Vol.1998 No.-
두 문자열의 동일성 판단과 뇌파와의 관계가 탐색되었다. 피험자들은 컴퓨터의 화면에 나타나는 두 문자열의 동일성 여부를 판단하여 반응 키를 누르는 과제를 수행하였으며, 이화 동시에 피험자들의 뇌파가 기록되었다. 긍정 반응과 부정 반응 시의 뇌파를 비교한 결과, 좌측 전두엽 부위의 theta파, slow alpha파, fast alpha파 그리고 우측 전두엽 부위의 theta파 그리고 우측 전두엽 부위┌ theta파 등이 긍부정 반응에 따라서 유의한 차이를 보였다.
( Estate Sokhadze ),최상섭 ( Sang Sup Choi ),이경화 ( Kyung Hwa Lee ),김연규 ( Yeon Kyu Kim ),손진훈 ( Jin Hun Sohn ) 한국감성과학회 1999 추계학술대회 Vol.1999 No.-
It is well known that a long-term exposure to a loud noise environment affects performance, since it distracts attention, and also is able to evoke stress accompanied by negative emotional states. The purpose of this study was to analyze dynamics of subjective and physiological variables during long-lasting (30 min) exposure to intensive white noise (85 dB[A]). Physiological signals on 23 college students were recorded by BIOPAC, Grass Neurodata systems and AcqKnowledge 3.5 software. Autonomic variables, namely skin conductance level (SCL), non-specific SCR number (N-SCR), inter-beat intervals in ECG (RR intervals), heart rate variability index (HF/LF ratio of HRV), respiration rate (RESP), and skin temperature (SKT) were analyzed on 5 min epoch basis. Psychological assessment (subjective rating of stress level) was also repeated on every 5 min basis. Regression and correlation analyses were employed to trace the time course of the dynamics of the subjective and autonomic physiological variables and their relationship. Results showed that intense noise evokes subjective stress with associated autonomic nervous system responses. However, it was shown that physiological variables endure specific changes in the process of exposure to loud white noise. Discussed are probable psychophysiological mechanisms mediating reactivity to long-term auditory stimulation of high intensity.
장은혜 ( Eun Hye Jang ),최상섭 ( Sang Sup Choi ),이경화 ( Kyung Hwa Lee ),손진훈 ( Jin Hun Sohn ) 한국감성과학회 2009 감성과학 Vol.12 No.1
The article reports findings on: (1) development of emotion assessment scale in evaluating the Television(TV) picture quality; and (2) how psychological and physical factors relate to TV picture quality. A total of 152 adjectives that specifically describe emotional reactions were first selected from a Korean dictionary of adjectives, followed by ratings on their suitability for the evaluation of TV picture quality. The final selection of 19 adjective, based on the reported rating scores greater than 4.1, were used on 126 college students who were asked to perform similarity ratings on the adjectives. Based on factor analyses (i.e., principal component analysis with oblique rotation) on the similarity of scores, the following adjectives were selectively chosen for the development of the new emotion assessment scale: `neat-messy`, `refreshing-gloomy`, `clean-dirty`, `comfortable-tense`, `smooth-rough`, `bright-dark`, `gorgeous-plain`, `diverse-monotonous`, `satisfying`, `natural`, and `sensuous`. These adjectives composed into two distinct constructs, `cleanness or smart` factor and `gorgeousness` factor, which demonstrated sensitivity to changes in brightness, contrast, color, and tint in the TV picture quality, except for changes in sharpness.
시각자극에 의해 유발된 스트레스 생리반응의 회복과정에 미치는 정서청각자극의 효과
( Estate Sokhadze ),이임갑 ( Im Gap Yi ),최상섭 ( Sang Sup Choi ),이경화 ( Kyung Hwa Lee ),손진훈 ( Jin Hun Sohn ) 한국감성과학회 1998 춘계학술대회 Vol.1998 No.-
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.
손진훈 ( Jin Hun Sohn ),권윤주 ( Yoon Joo Kwon ),민윤기 ( Yun Gi Min ),최상섭 ( Sang Sup Choi ) 한국감성과학회 1999 추계학술대회 Vol.1999 No.-
본 연구는 생활 소음이 유발하는 유해성을 객관적으로 평가할 수 있는 감성 척도를 개발하고, 그 척도를 이용하여 생활 소음과 소음에 대한 감성간 관계를 반영하는 감성 지수를 도출하고자 수행되었다. 먼저 소음에 대한 주관적 느낌을 잘 기술해주는 27 개의 형용사를 선정한 뒤 세 가지의 실제 주거 소음을 들려주며 소음에 대한 감성을 27 개의 형용사에 대해 평가하게 하였다. 이 결과에 대한 요인분석을 실시하여 ``지배성``, ``쾌/불쾌``, ``각성`` 차원의 세 개 차원으로 구성되는 14 개의 최종적 소음 감성 척도를 개발하였다. 다음으로 실제 주거 생활에서 소음과 감성간 관계를 알아보기 위해 실제로 4 가지의 주거 소음을 들으면서 인지적 과제를 수행하게 하여 소음에 대한 느낌을 소음 감성 척도상에 평가하게 하는 실험을 실시하였다. 이 결과 소음의 크기가 증가할수록 소음에 대한 감성이 부정적으로 나타나는 직선적 관계가 얻어졌고. 이를 기초로 일차 방정식 형태의 소음-감성 지수를 도출하였다.