Gilbert A N
Monell Chemical Senses Center, Philadelphia, PA 19104-3308.
Chronobiol Int. 1989;6(3):251-7. doi: 10.3109/07420528909056926.
Active anterior rhinomanometry was used to observe nasal airflow in five men and four women (ages 18-30). Measurements were obtained for each nasal passage every 5 min throughout an uninterrupted 8-hr session. Facial skin temperature from the left and right side of the face was recorded simultaneously from thermocouples. Observations were made during the months of May and June; subjects were allowed to maintain their routine diurnally active schedules prior to observation. Airflow in the two passages showed a significant negative correlation (i.e. was reciprocal) in 44% of subjects (N = 9). Autocorrelation and spectral analysis of the airflow data found evidence of periodicity in 39% of individual nostrils and 56% of subjects. Mean estimated period was 4.5 +/- 1.0 hr (range 3.5-6.0 hr). Only 22% of subjects showed statistical evidence of periodicity in both nostrils (i.e. a "nasal cycle"). Left- and right-side facial skin temperatures changed in parallel rather than reciprocally, but showed evidence of periodicity in 50% of hemifacial time series (56% of subjects), with an estimated period of 3.8 +/- 1.0 hr (range 2.3-5.0).
采用主动前鼻测压法观察了5名男性和4名女性（年龄18 - 30岁）的鼻腔气流情况。在连续8小时的时间段内，每隔5分钟对每个鼻腔通道进行一次测量。同时通过热电偶记录面部左右两侧的皮肤温度。观察在5月和6月进行；在观察前，受试者可维持其日常的日间活动安排。在44%的受试者（N = 9）中，两个鼻腔通道的气流呈现出显著的负相关（即相互反向）。对气流数据进行自相关和频谱分析发现，39%的单个鼻孔以及56%的受试者存在周期性证据。平均估计周期为4.5 +/- 1.0小时（范围3.5 - 6.0小时）。只有22%的受试者在两个鼻孔中均显示出周期性的统计学证据（即“鼻周期”）。面部左右两侧的皮肤温度呈平行变化而非反向变化，但在50%的半侧面部时间序列（56%的受试者）中显示出周期性证据，估计周期为3.8 +/- 1.0小时（范围2.3 - 5.0）。
