Knapen S.E., Van de Werken M., Gordijn M.C.M., Meesters Y. The duration of light treatment and therapy outcome in seasonal affective disorder. Journal of Affective Disorders, 166: 343-346. (2014).
Background: Seasonal affective disorder (SAD) is characterized by recurrent episodes of major depression with a seasonal pattern, treated with light therapy (LT). Duration of light therapy differs. This study investigates retrospectively whether a single week of LT is as effective as two weeks, whether males and females respond differently, and whether there is an effect of expectations as…
