Eastwood M R, Whitton J L, Kramer P M, Peter A M
Arch Gen Psychiatry. 1985 Mar;42(3):295-9. doi: 10.1001/archpsyc.1985.01790260093011.
We matched patients with affective disorders by sex and age with a healthy control group. The two groups recorded daily measures of hours slept, energy, anxiety, and mood levels for 14 months. We analyzed the data using spectral analysis. We found that both groups had statistically significant infradian rhythms, with the majority having seasonal cycles, and that the patients with affective disorders differed from the control subjects in having a greater amplitude of their periodicities.
我们将患有情感障碍的患者与一个健康对照组按性别和年龄进行匹配。两组记录了14个月里每天的睡眠时间、精力、焦虑和情绪水平的测量数据。我们使用频谱分析对数据进行了分析。我们发现两组都有统计学上显著的超日节律，大多数具有季节性周期，并且患有情感障碍的患者与对照组的不同之处在于其周期性的振幅更大。
