Fukuhara H
Department of Psychology, Ritsumeikan University.
Shinrigaku Kenkyu. 1996 Feb;66(6):437-42. doi: 10.4992/jjpsy.66.437.
Various methods have been conventionally applied for studies of the nasal cycle. Most of these studies have been through either clinical observations by rhinologists or by the use of physiological apparatuses. The purposes of the present study are to develop a different and simplified technique for measuring the nasal cycle and to determine the extent to which the new technique works with actual cases. Five adult subjects were required to hold a 8 x 6 mirror horizontally under the nostrilsin and to breathe through the nose with the mouth closed. The length of time required for the exhalation vapor to condense on the mirror was measured every 15 minutes from 9 a.m. to 5 p.m. LR index scores (L-R/L+R) were calculated on the bases of left and right time, and maximum entropy method spectral analysis was used to determine the nasal cycle. The results showed that three of the subjects demonstrated significant periodicities equivalent to about three or four hour ultradian rhythms. Some of the problems with individual differences and with this new method were discussed.
传统上，人们采用了各种方法来研究鼻周期。这些研究大多是通过鼻科医生的临床观察或使用生理仪器进行的。本研究的目的是开发一种不同的、简化的测量鼻周期的技术，并确定该新技术在实际病例中的适用程度。五名成年受试者被要求在鼻孔下方水平手持一面8×6的镜子，闭着嘴用鼻子呼吸。从上午9点到下午5点，每隔15分钟测量一次呼出的蒸汽在镜子上凝结所需的时间。根据左右时间计算LR指数得分（L-R/L+R），并使用最大熵方法频谱分析来确定鼻周期。结果表明，三名受试者表现出明显的周期性，相当于大约三或四个小时的超日节律。讨论了个体差异和这种新方法存在的一些问题。
