Light Treatment for Nonseasonal DepressionMarch 1st 1999
Daniel F. Kripke, M.D. has studied the relationship between biological rhythms and depression since the early 1970s. He states that seasonal responses in many mammals are controlled by the photoperiod. Therefore, it seemed that depression might be analogous to winter responses and that light might be an effective treatment.
Hypnotics and the Perception of WakefulnessJuly 1st 1994
Insomnia, the subjective sense of having inadequate quantity orquality of sleep, may result from a variety of causes. In itschronic form, such etiologies may include psychiatric disorderssuch as depression or anxiety, medical illnesses, medications,substance abuse, circadian dysrhythmias and pathophysiologiesintrinsic to sleep such as sleep apnea or periodic movement disorder.When these conditions have been ruled out, however, there remaintwo very interesting groups that at this time are best understoodin psychophysiological terms.