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. 1987 May 15;43(5):574-6.
doi: 10.1007/BF02143590.

Dose relationships of morning bright white light in seasonal affective disorders (SAD)

A Wirz-Justice, A C Schmid, P Graw, K Kräuchi, P Kielholz, W Pöldinger, H U Fisch, C Buddeberg

Dose relationships of morning bright white light in seasonal affective disorders (SAD)

A Wirz-Justice et al. Experientia. .

Abstract

Bright white full spectrum light (greater than 2500 lux) can improve depressive symptomatology in a selected group of patients with recurrent autumn and winter depression. This crossover study demonstrates that 0.5-h morning white light is not an effective treatment, whereas 2-h is.

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References

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