This study investigated the convergence of the QEEG and mood state changes in healthy females from late teens to twenties in relation to the inhalation of peppermint oil (peppermint) in different concentrations (0.1~100%). Brain activity upon stimulation by different concentrations was analyzed based on the RPVs and CVB (%), representing a rate of change compared with the background QEEG. Peppermint showed the effect of relaxation at low concentrations (0.1 and 1%) with increased θ and α waves and decreased β and γ waves. As the concentration of peppermint increases, the α wave decreases, and the θ, β and w waves increase, and there is an arousal effect. Peppermint was rated as having a refreshing, exhilarating, and intense smell. At a low concentration of 0.1%, peppermint chiefly produced a feeling of pleasantness, freshness and refreshment. However, the increase in peppermint concentration resulted in a masculine, exiting, and hard emotional response. As the concentration of peppermint increased, the odor intensity increased in a linearly. The amount of change (ΔSEF50 and ΔSEF90) in edge frequencies closely related to the activation and stress of the brain showed a positive correlation. Odor intensity has a stronger association with ΔSEF90, a stress-related brain wave indicator than with ΔSEF50, a brain activation-related indicator. In addition, both ΔSEF50 and ΔSEF90 showed a positive correlation with APIGF (feelrefreshing average preference index) and a negative correlation with APIAC (Active-Calm average preference) and APIAll (total average preference index). These findings indicate that (1) the correlation between odor intensity and stress and (2) the relationship between emotional and QEEG can be interpreted in terms of brain wave study.

This study investigated the convergence of the QEEG and mood state changes in healthy females from teens to twenties on the inhalation of jasmine oil in different concentrations (0.01~100%). Brain activity upon stimulation by different concentrations was analyzed based on the RPVs and CVB, representing a rate of change compared with the background QEEG. The emotions elicited through jasmine were evaluated on a 20-point scale. The result of this evaluation showed that jasmine deactivated fast alpha but activated theta. In addition, it provided evidence for changes in the frequency band according to concentration. As concentration increased, the effect of alpha inhibition decreased, while the effect of inhibition of the high frequency band (20~50 Hz) increased. SEF50 and SEF90, which indicate the state of arousal, decreased as the jasmine concentration increased. Furthermore, it was assessed as having a pleasant, feminine, fresh and soft odor. Therefore, this study suggested that the inhalation of jasmine oil affected brain wave activities and mood states.

목적 : 뇌병변 환자에게 집단 작업치료프로그램을 실시하여 개별 작업치료만 받는 환자와 집단 작업치료프로그램을 병행하여 받는 환자들의 상지기능, 인지∙지각기능 및 일상생활동작에 미치는 영향을 비교, 분석하여 집단 작업치료프로그램 적용 효과를 규명하고 효과적인 프로그램을 위한 기초자료를 제공하기 위함이다. 연구방법 : 2008년 5월부터 10월까지 전통적 치료방법인 개별작업치료만 받는 뇌병변 환자 70명을 대상으로 8주 동안 주 5회 60분씩 총 40회의 치료를 실시하였으며, 치료적 활동프로그램이 포함된 집단작업치료프로그램에 참여하기를 동의한 환자 30명을 대상으로 8주동안 주4회 개별치료와 주1회 60분씩 집단치료를 실시하였다. 결과 : 개별작업치료만 받는 환자군에 비하여 집단작업치료프로그램을 병행하여 받은 환자군이 상지기능, 인지∙지각기능과 일상생활 수행기능이 통계적으로 유의하게 높아졌다. 결론 : 전통적 치료방법인 개별작업치료만 받는 환자군에 비하여 치료적 활동프로그램이 포함된 집단작업치료프로그램을 병행하여 받은 환자들의 치료 효과가 더 높았음을 나타내고 있다. 앞으로 보다 많은 대상으로 집단 작업치료프로그램 개발 및 치료효과를 입증할 수 있는 연구가 이루어지기를 바란다.

포유동물에서 뇌와 부신에서 합성ㆍ분비되는 카테콜아민(Catecholamine, CA)계 신경전달물질인 dopamine(DA), norepinephrine(NE), epinephrine(E)은 체내 각종 생리현상의 조절에 필수적이며, 생식과 관련된 기능으로는 시상하부와 뇌하수체 사이의 GnRH-gonadotropin 호르몬 축의 활성을 조절함 외에도 번식과 연관된 여러 행동양식을 조절함이 잘 알려져 있다. 본 연구는 카테콜아민 생합성 효소인 tyrosin