한국감성과학회:학술대회논문집 (Proceedings of the Korean Society for Emotion and Sensibility Conference)
- 한국감성과학회 1998년도 추계학술발표 논문집
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- Pages.143-147
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- 1998
시각 자극에 의하여 유발된 긍/부정 정서의 뇌파 및 자율신경계 반응의 차이
Physiological Differentiation of Emotional States Induced by Pictorial Stimuli of Positive And Negative Valence in Passive Viewing Mode
- Imgap Yi (Department of Psychology, Chungnam National University) ;
- Lee, Kyung-Hwa (Department of Psychology, Chungnam National University) ;
- Estate Sokhadze (Department of Psychology, Chungnam National University) ;
- Park, Sangsup (Department of Psychology, Chungnam National University) ;
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Sohn, Jin-Hun
(Department of Psychology, Chungnam National University)
- 발행 : 1998.11.01
초록
Autonomic and EEG responses of 38 college students were studied during 60-sec long presentation of International Affective Picture System (IAPS )slides evoking, according to subjective reports, negative (disgust, sadness, surprise) and positive (happiness, exciting) emotional. states. Observed were significant heart rate (HR) deceleration, large skin conductance responses (SCR), moderate respiration frequency slowing, reduction of frontal (F 3, F 4 ) and occipital (O 1, O 2 ) fast alpha, and increases of theta, delta and beta relative spectral power values during the first 30 sec of exposure of IAPS pictures. Analysis carried out to differentiate emotion categories according to autonomic responses indicated that observed HR deceleration was larger in magnitude in surprise and sadness than in disgust, SCR amplitude higher in sadness than in disgust. EEC showed significant differences in theta (F 3, F 4 ) and delta (O 1) power increase in disgust vs. happiness, fast alpha (F 3, F 4 ) power was lower in surprise than in happiness, and slow beta power higher. in happiness than in disgust (0 1). Despite some differences. observed within discrete emotion conditions, overall responses pattern of monitored parameters exhibited similar profiles with few variations, most. obvious. in disgust state, which suggests that affective visual stimulation elicits stereotypical responses in a given passive viewing paradigm. However, the magnitude of physiological responses may vary to certain extent across discrete emotional states making it possible to differentiate among particular experimentally-induced emotional states, e.g., disgust vs. sadness by ANS responses or disgust vs. happiness by EEG measures.
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