Cited by 146Circadian rhythm and melatoninTreatment of Major DepressionPsychotherapy Techniques and Applications

Bright Light Therapy: Side Effects and Benefits Across the Symptom Spectrum

Terman, Michael, Terman, Jiuan Su·1999·The Journal of Clinical Psychiatry

Abstract

BACKGROUND: Bright light therapy has been established for treatment of winter depression, or seasonal affective disorder (SAD). Analysis of side effects most often have focused on a narrow set of suspected symptoms, based on clinical observation (e.g., headache, eyestrain, nausea, insomnia, and hyperactivity). This study broadens the purview to a set of 88 physical and subjective symptoms that might emerge, remit, or remain unchanged relative to baseline, thus reducing bias toward assessment of presumed side effects. METHOD: Eighty-three patients with SAD (DSM-III-R criteria for mood disorders with seasonal pattern [winter type] and National Institute of Mental Health criteria for SAD) received bright light therapy at 10,000 lux for 30 minutes daily in the morning or evening for 10 to 14 days. They completed a questionnaire (Systematic Assessment for Treatment Emergent Effects), rating symptom severity before and after treatment. Results were compared for morning or evening treatment and for responders and nonresponders. RESULTS: Several side effects emerged--mostly mildly--including jumpiness/jitteriness (8.8%), headache (8.4%), and nausea (15.9%), mirroring findings of past studies with a less inclusive scope. In most cases, remission rate equalled or exceeded emergence rate. Several nondepressive symptoms also showed large improvement, including poor vision and skin rash/itch/irritation. Being overactive/excited/elated showed greater emergence under morning light and greater remission under evening light. Emergence of nausea was greater than remission in responders. CONCLUSION: The dominant effect of light treatment was improvement in bothersome symptoms. Although patients should be advised of side effects and guided in dose manipulations to reduce them, attention also should be drawn to the substantial benefit-to-risk ratio. Improvement of symptoms outside the depressive cluster, seen in both responders and nonresponders, may point to new therapeutic uses of light therapy.

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Crossref · 10.4088/jcp.v60n1113

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  • The side effect profile in clinical PD light therapy studies is consistent with other light therapy studies, including transient headache, eye itching, and sleepiness.

    “The side effect profile in these clinical PD LT studies is consistent with other light therapy studies, including transient headache, eye itching, sleepiness (Terman and Terman, 1999, Terman and Terman, 2005).”

    From Circadian dysregulation in Parkinson's disease (2017) · cites this paper as Terman and Terman, 1999

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Authors
Terman, M., & Terman, J. S.
Affiliations
Columbia University (US)
Venue
The Journal of Clinical Psychiatry
Published
1999-11-15
Volume
60
Issue
11
Pages
798-808
ISSN
0160-6689 (ISSN-L)
OpenAlex
W2078299157
Cited by
146
References
0
Citations by year
2026: 1 · 2025: 8 · 2024: 5 · 2023: 4 · 2022: 1 · 2021: 6 · 2020: 5 · 2019: 7 · 2018: 10 · 2017: 5 · 2016: 6 · 2015: 6 · 2014: 5 · 2013: 5 · 2012: 7
FWCI
0.88
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Clinical Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Mental Health (MH 42931, R01MH042931)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Social Sciences › Psychology › Clinical Psychology › Psychotherapy Techniques and Applications
Keywords
bright light therapy, seasonal affective disorder, headache, nausea, jitteriness, risk-benefit ratio
MeSH terms
Adolescent, Adult, Anxiety, Circadian Rhythm, Depressive Disorder, Female, Headache, Humans, Irritable Mood, Male, Middle Aged, Nausea, Phototherapy, Placebos, Psychiatric Status Rating Scales, Severity of Illness Index, Seasonal Affective Disorder, Treatment Outcome, Risk Assessment

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