- 著者
- Aya Miyatsuji Tamaki Matsumoto Sachiko Mitarai Tetsuro Kotabe Takehiro Takeshima Shigeki Watanuki
- 出版者
- Japan Society of Physiological Anthropology
- 雑誌
- Journal of PHYSIOLOGICAL ANTHROPOLOGY and Applied Human Science (ISSN:13453475)
- 巻号頁・発行日
- vol.21, no.1, pp.67-74, 2002 (Released:2002-04-04)
- 参考文献数
- 34
- 被引用文献数
- 28 32
The present study was designed to investigate the effects of clothing skin pressures exerted by two different types of brassieres (a conventional higher skin-pressured brassiere and a newly devised low skin-pressured brassiere) on the autonomic nervous system (ANS) activity. Six healthy young women (22.8 ± 1.4 yrs.) with regular menstrual cycles participated in this study. The ANS activities were assessed by means of heart rate variability power spectral analysis. The skin pressures exerted by the brassieres were measured with an air-pack type contact surface pressure sensor at five different points. The total amount of clothing pressure, and the pressures at the center and the side regions of the brassieres were significantly greater in the high than in the low skin-pressured brassiere (Total 9816.1 ± 269.0 vs. 6436.8 ± 252.4 Pa, P<0.01; Center 2212.1 ± 336.3 vs. 353.8 ± 85.8 Pa, P<0.01; Side 2556.8 ± 316.1 vs. 1747.2 ± 199.2 Pa, P<0.05). Concerning the ANS activity, the Total power, and the very low frequency (VLF) and the high frequency (HF) components were significantly decreased in the high skin-pressured brassiere than those in the low skin-pressured brassiere (Total 531.6 ± 57.3 vs. 770.5 ± 54.2 ms2, P<0.01; VLF 60.7 ± 14.6 vs. 179.2 ± 38.1 ms2, P<0.05; HF 209.5 ± 33.2 vs. 283.2 ± 61.5 ms2, P<0.01). Our data indicate that the higher clothing pressures exerted by a conventional brassiere have a significant negative impact on the ANS activity, which is predominantly attributable to the significant decrease in the parasympathetic as well as the thermoregulatory sympathetic nerve activities. Since the ANS activity plays an important role in modulating the internal environment in the human body, excess clothing pressures caused by constricting types of foundation garments on the body would consequently undermine women's health.
- 著者
- Jin-Hun Sohn Estate Sokhadze Shigeki Watanuki
- 出版者
- 日本生理人類学会
- 雑誌
- Journal of PHYSIOLOGICAL ANTHROPOLOGY and Applied Human Science (ISSN:13453475)
- 巻号頁・発行日
- vol.20, no.2, pp.55-64, 2001 (Released:2001-06-12)
- 参考文献数
- 59
- 被引用文献数
- 6 15
The purpose of this paper is to analyze the current state of developmental researches in the area of psychophysiology of emotions in preschool and elementary school children. Electrodermal and cardiovascular activity measures are considered as the sources of indices of the autonomic nervous system activation during emotion-eliciting stimulation in children. We discuss the question of sensitivity of phasic and tonic autonomic measures for the identification of occurrence of emotion, mapping it along with valence and arousal dimensions in affective space, and to further differentiate emotions by their physiological manifestations. Considered are the conceptual and methodological issues related to psychophysiological measurements and developmental factors affecting the emotional reactivity in children. Special attention is devoted to the developmental aspects of psychophysiological studies on emotion such as the maturation of organs, integration of the autonomic and central nervous systems, age and gender-related changes in autonomic reactivity, and development of inhibitory control. Summarized are main findings relevant to psychophysiology of emotions in preschool and early school-age children and suggested are most perspective directions of their integration in the framework of modern theories of emotion.