2- versus 4-hour evening phototherapy of seasonal affective disorder.

Publication/Presentation Date

4-1-1990

Abstract

Seasonal affective disorder (SAD) has been successfully treated with bright light, and morning exposure has been deemed more effective than exposure at other times. Evening treatment may offer a practical advantage, but the optimal duration of exposure has not been established. Six SAD patients were treated at home for 1 week with 2500 lux of light given either from 6 p.m. to 8 p.m. or from 6 p.m. to 10 p.m. using a counterbalanced crossover design with a minimal withdrawal period of 1 week between conditions. Both treatments were effective in reversing SAD symptoms, but neither treatment was superior. These results suggest that evening phototherapy for as little as 2 hours may be a useful and reasonable alternative for the treatment of SAD.

Volume

178

Issue

4

First Page

257

Last Page

260

ISSN

0022-3018

Disciplines

Business Administration, Management, and Operations | Health and Medical Administration | Management Sciences and Quantitative Methods

PubMedID

2319234

Department(s)

Administration and Leadership

Document Type

Article

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