Blume J, Seigis A
Chronobiologia. 1978 Oct-Dec;5(4):391-8.
The body temperature of 2 persons closed off to the outside world was pergressively analyzed with a short analyzing interval showing that the spontaneous and controlling rhythms of T = 30 h are present as previously demonstrated by ASCHOFF and BLUME. The characteristic properties and differences of both curves are described. Especially it is demonstrated that a transient process is present in the first curve, but not in the second curve. The presence of both rhythms is confirmed by the pergressive Fourier analysis of the first curve with a long analyzing interval. The problem to find out correct values for the parameters of hidden rhythms with the aid of the amplitude spectrum is pointed out. It is not present for the pergressive Fourier analysis.
对两名与外界隔绝的人的体温进行了逐步分析，分析间隔较短，结果表明，正如之前阿绍夫和布卢姆所证明的那样，存在T = 30小时的自发和控制节律。描述了两条曲线的特征和差异。特别指出的是，第一条曲线存在一个瞬态过程，而第二条曲线不存在。通过对第一条曲线进行长分析间隔的逐步傅里叶分析，证实了两种节律的存在。指出了借助振幅谱找出隐藏节律参数正确值的问题。对于逐步傅里叶分析不存在这个问题。
