| Summary: | 碩士 === 國立交通大學 === 傳播研究所 === 98 === In the late two decades, emotion studies have been growing interests in the issue of “coactivation of positive and negative emotions”. However, there are still lacks of congruent research findings to achieve a consensual understanding of this issue. This study suggests such incongruence comes from two shortages: First, on the theoretical side, previous studies lack consensual definition of emotion. Second, on the methodological side, previous studies lack proper elicitation and measurement. Thus, this study has two aims: First, attempting to solve the issue of definition. Second, attempting to refine the elicitation and measurement.
First, to the definitional issues, according to motivational system theory, “emotion” is a physical state of action readiness generated by motivational system and different from” feeling”, which is a conscious experience of emotion and other cognitive appraisals. According to dimensional approach, emotion is composed of two basic dimensions (valence and arousal) rather than discrete programs. Second, to the issue of elicitation, based on stroop-like paradigm, this study refines elicitation by superimposing two valence-conflicting pictures. Third, to the issue of measurement, this study adopts psychophysiology as its measurement of emotion, and SAM rating scale as its measurement of feeling.
There are three main results: First, pictures from IAPS elicit the same emotional responses as previous studies. Second, although activity of corrugator supercilii is correlated with valence rating and electrodermal activity is correlated with arousal rating, activity of zygomaticus major is not correlated with valence rating, suggesting that the responses of emotion and feeling are not completely identical. Third, valence is not correlated with arousal under positive condition but is correlated with arousal under negative condition. Last, compared to single presentation, both parallel and stroop-like presentation of positive and negative pictures elicit higher coexistence of positive and negative feelings and coactivation of positive and negative emotions.
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