Krauss S S, Depue R A, Arbisi P A, Spoont M
Department of Psychology, Villanova University, PA 19085.
Psychiatry Res. 1992 Aug;43(2):147-60. doi: 10.1016/0165-1781(92)90129-q.
Six patients with bipolar II seasonal affective disorder (SAD) and seven normal control subjects rated their moods in winter at six fixed times each week-day during 1 week of dim and 2 weeks of bright light. The scales rated represent the mood dimension specifically associated with depression, a dimension here called behavioral engagement (BE). Compared with controls, depressed SAD subjects (1) showed lower BE levels across all rating times of the day, (2) were more likely to show diurnal variation in BE, (3) displayed more between-day instability in BE diurnal rhythm, and (4) exhibited greater short-term lability (change within 3 hours) in BE. Bright light reduced or eliminated all group differences in BE level and variability.
6例双相II型季节性情感障碍（SAD）患者和7名正常对照受试者在1周暗光和2周亮光期间，于每个工作日的6个固定时间对其冬季情绪进行评分。所使用的量表评定的是与抑郁特别相关的情绪维度，在此维度称为行为参与度（BE）。与对照组相比，抑郁的SAD受试者：（1）在一天中的所有评分时间BE水平较低；（2）更有可能在BE上表现出昼夜变化；（3）在BE昼夜节律上表现出更大的日间不稳定性；（4）在BE上表现出更大的短期易变性（3小时内变化）。亮光减少或消除了BE水平和变异性方面的所有组间差异。
