Stupfel M, Perramon A, Gourlet V, Thierry H, Ali M, Lemercerre C
Comp Biochem Physiol A Comp Physiol. 1983;75(2):293-7. doi: 10.1016/0300-9629(83)90084-1.
Fourier harmonic analysis has been applied to 20-min samples of VCO2, recorded every 12 sec over several (7-12) days, in one mouse, one rat, one guinea-pig, or one quail, maintained in controlled conditions of temperature, humidity and ventilation, and lit in LD12:12 (100 lux). The harmonic computations, during L and D of ultradian periods (1.2 hr less than tau less than 12 hr) evidence statistically significant differences in amplitude and phase between these four small laboratory species. These periodic respiratory differences correspond to discrepancies in their diurnal and nocturnal activities, and in their responses to light and dark.
傅里叶谐波分析已应用于一只小鼠、一只大鼠、一只豚鼠或一只鹌鹑在温度、湿度和通风受控条件下饲养，并在12:12光暗周期（100勒克斯）光照下，每隔12秒记录一次的20分钟VCO2样本。超日周期（1.2小时＜τ＜12小时）的光照期和黑暗期的谐波计算表明，这四种小型实验动物在振幅和相位上存在统计学上的显著差异。这些周期性呼吸差异与它们的昼夜活动差异以及对光暗的反应差异相对应。
