Byerley W F, Brown J, Lebegue B
Department of Psychiatry, University of Utah Medical Center, Salt Lake City 84132.
J Clin Psychiatry. 1987 Nov;48(11):447-8.
Three subjects afflicted with seasonal affective disorder (winter depression) were treated with 2-hour morning light exposures. Within 2 to 5 days, all responded, and remission of their symptoms was sustained during the 2-month treatment period.