Department of Psychiatry, McGill University, 1033 Pine Avenue West, Montreal, Quebec H3A 1A1, Canada.
Prog Neuropsychopharmacol Biol Psychiatry. 2014 Jan 3;48:92-101. doi: 10.1016/j.pnpbp.2013.09.004. Epub 2013 Sep 14.
Bright light is used to treat winter depression and may also have positive effects on mood in some healthy individuals. However, there is little information on how bright light treatment influences social behavior. We performed a cross-over study in winter comparing the effects of morning bright light administration with placebo (exposure to negative ions) on mood and social behavior in 38 healthy people with mild to moderate seasonality. Each treatment was given for 21days with a washout period of 14days between treatments. An event-contingent recording assessment was used to measure mood, and social behavior along two axes, agreeable-quarrelsome and dominant-submissive, during each 21-day treatment period. During treatments, participants wore a combined light-sensor and accelerometer to test this method for adherence to light treatment self-administered at home. Data were analyzed using multilevel modeling. Bright light improved mood but increased quarrelsome behavior and decreased submissiveness. Data from the light monitor and accelerometer suggested that 21% of the participants did not adhere to bright light treatment; when this group was analyzed separately, there was no change in quarrelsomeness or mood. However, results for individuals who followed the procedure were similar to those reported for the whole sample.
强光被用于治疗冬季抑郁症，并且可能对一些健康个体的情绪也有积极影响。然而，关于强光治疗如何影响社交行为的信息却很少。我们在冬季进行了一项交叉研究，比较了轻度至中度季节性人群中 38 名健康个体接受为期 21 天的早晨强光治疗与安慰剂（暴露于负离子）治疗对情绪和社交行为的影响，两次治疗之间有 14 天的洗脱期。使用事件相关记录评估来测量每个 21 天治疗期间的情绪以及沿着两个轴（和蔼可亲-好争吵和支配-顺从）的社交行为。在治疗期间，参与者佩戴组合式光传感器和加速度计，以测试在家中自行进行强光治疗的依从性。使用多层次建模分析数据。强光改善了情绪，但增加了好争吵行为并减少了顺从性。来自光监视器和加速度计的数据表明，21%的参与者没有遵守强光治疗；当对该组进行单独分析时，好争吵性或情绪没有变化。然而，按照程序进行的个体的结果与整个样本报告的结果相似。
