Albert P S, Rosen L N, Alexander J R, Rosenthal N E
Biometry and Field Studies Branch, National Institute of Neurological Disorders and Stroke, Bethesda, MD 20892.
Psychiatry Res. 1991 Jan;36(1):51-63. doi: 10.1016/0165-1781(91)90117-8.
Analysis of daily self-ratings of energy for 10 patients diagnosed with seasonal affective disorder (SAD) revealed statistically significant seasonal patterns in eight patients (with all patients showing the most energy in the summer and the least energy in the winter). When weather was controlled for, the seasonal patterns in energy persisted in seven of the eight patients. In a lesser number of subjects (four), there were significant effects of weather after controlling for season; however, when the effects of weather on energy were examined separately for each season, 8 of the 10 subjects were found to be influenced by weather in at least one season. Daily sleep data showed statistically significant seasonal patterns in all 10 patients (with 6 subjects showing maximum sleep in winter and 4 in summer). As for the relationship between energy and sleep, a loss of energy appeared to predict longer sleep on that night and the next night (7 of 10 patients), whereas there was no evidence that prolonged sleep influenced energy on the following and subsequent days.
对10名被诊断为季节性情感障碍（SAD）的患者的每日能量自评分析显示，8名患者存在统计学上显著的季节性模式（所有患者在夏季能量最高，冬季能量最低）。在控制天气因素后，8名患者中的7名仍存在能量的季节性模式。在较少数量的受试者（4名）中，控制季节因素后天气有显著影响；然而，当分别检查每个季节天气对能量的影响时，发现10名受试者中有8名在至少一个季节受到天气影响。每日睡眠数据显示，所有10名患者都存在统计学上显著的季节性模式（6名受试者在冬季睡眠最多，4名在夏季睡眠最多）。至于能量与睡眠的关系，能量下降似乎预示着当晚和第二晚睡眠时间会延长（10名患者中有7名），而没有证据表明延长的睡眠会影响随后几天的能量。
