정재(춘앵전)수행의 명상적 효과에 관한 심리ㆍ생리적 분석

Abstract

The purpose of this study is to investigate the psychological changes in the emotional effects of jeong-jae, to verify through experiment, revealing psychological value of jeong-jae. For this purpose, the verification was made by performing the physiological test on the scientifically measurable emotion status, and the in-depth interview was made to identify what variable factors may psychologically influence on it. For this, the groups were divided into jeong-jae expert(n=9), yoga expert(n=6), and gymnastic group(n=9) to present the assignments such as jeong-jae, meditation and national freehand exercise that fit to each group characteristics, then brain wave, blood pressure, and pulse were measured as the measurement showing the physiological status. The brain wave was measured total four times, before performance, during performance 1, performance 2 and after performance, while blood pressure and pulse were measured to times before and after. After the post-performance for jeong-jae group, the in-depth interview was made to find out the linkage to the physiological measured results, and to draw out the variable factors of emotional status. Accordingly, two-way ANOVA with repeated-measures between groups was designed for this study. In the result, theta wave(θ-wave) and alpha wave(α-wave) was found more activated in jeong-jae expert group during performance than pre- and post-performance. These results represent the stable mind and immersion, and in-depth interview results also indicate this is closely related to the variable factors of emotional status such as music, dancing, moving flow, breath and thoughts. In the result of comparison with jeong-jae expert group(experiment group), yoga expert group and gymnastic group(comparative group), the interactive effects within and between groups were statistically significant for theta wave(θ-wave) and alpha wave(α-wave) wave in channel 1(Fp1) and channel 2(Fp2) of prefrontal cortex location, and channel 3(F3) and channel 4(F4) of frontal lobe location. From jeong-jae expert group, theta wave(θ-wave) was most activated in frontal lobe across the whole brain areas during performance, which means jeong-jae has the same effects with deep meditation. In case of alpha wave(α-wave), the changes in jeong-jae expert group and yoga expert group were found as similar. From the results that the most increased theta wave(θ-wave) curve and alpha wave(α-wave) trend curve of jeong-jae expert group have similar shape with those of yoga expert group, we can interpret it as deeper immersion and more stable emotion to reach convenient mind. In the result of analysis on theta wave(θ-wave) and alpha wave(α-wave) from channel 5(T3) and channel 6(T4) of temporal lobe dealing with auditory information and from channel 7(P3) and channel 8(P4) parietal lobe in charge of somatosensory area, theta wave(θ-wave) was increased in jeong-jae expert group during performance than pre-performance. Meanwhile, the comparative groups showed contrary results. In addition, in case of alpha wave(α-wave), the interactive effects was statistically significant, and it was found the jeong-jae expert group and yoga expert group showed similar trend curves which increase during performance. In case of blood pressure as another physiological measurements for emotion, the post-performance measurement showed notable reduction in SBP and DBP in jeong-jae expert group which has not statistically significant difference, but actual decreased in all groups. This study is to clarify mental stability effect on jeong-jae that is a part of psychological effect that jeong-jae has so it is well worth noticeable study attempt when considering approach method of jeong-jae study is limited only to historical and aesthetic approach. Also the result of this study showing that jeong-jae has same psychological and physiological alteration aspect as meditation is considered as the result to upgrade the value of jeong-jae which is a part of dance history.