Cited by 64Circadian rhythm and melatoninAttention Deficit Hyperactivity DisorderSleep and related disorders

Correcting delayed circadian phase with bright light therapy predicts improvement in ADHD symptoms: A pilot study

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Fargason, Rachel E., Fobian, Aaron D., Hablitz, Lauren M., Paul, Jodi R., White, Brittny A., Cropsey, Karen L., Gamble, Karen L.·2017·Journal of Psychiatric Research

Abstract

Attention-deficit/hyperactivity disorder (ADHD) is a common condition with comorbid insomnia reported in >70% of children and adults. These patients demonstrate delays in sleep-wake rhythms, nocturnal rise in melatonin, and early morning rise in cortisol. Given that standard psychopharmacologic treatments for ADHD often do not completely control symptoms in participants with circadian rhythm delay, we sought to test whether bright light therapy (BLT) advances circadian rhythms and further reduces ADHD symptoms over standard treatments. In addition to standard of care, participants with ADHD diagnosis underwent 1 week of baseline assessment followed by 2-weeks of 30-min morning 10,000-lux BLT beginning 3 h after mid-sleep time. Participants minimized overhead light after 4 p.m., wore an actigraphy watch, and recorded BLT time on daily sleep logs. Dim Light Melatonin Onset (DLMO) was assessed at baseline and after 2-week treatment. ADHD symptoms were measured by the ADHD-Rating Scales (ADHD-RS). BLT significantly advanced the phase of DLMO by 31 min [mean time (SEM), 20:36 (0:21) advanced to 20:05 (0:20)] and mid-sleep time by 57 min [4:37 (0:22) advanced to 3:40 (0:16); paired t-tests, p = 0.002 and 0.004, respectively). Phase advances (in DLMO or mid-sleep time) were significantly correlated with decreased ADHD-RS total scores (p = 0.027 and 0.044) and Hyperactive-Impulsive sub-scores (p = 0.014 and 0.013, respectively). Actigraphy analysis for a subset of 8 participants with significant DLMO phase advance revealed no significant changes in total sleep time, sleep efficiency, wake after sleep onset, or percent wake during sleep interval. This is the first successful use of BLT for advancing melatonin phase and improving ADHD symptoms in adults. BLT may be a complementary treatment for both delayed sleep timing and ADHD symptoms in adults.

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  • Advancing melatonin rhythms using bright light therapy improves ADHD symptoms of hyperactivity and impulsivity in adults independent of changes in sleep time, sleep efficiency, wake time or waking during sleeping.

    “Advancing melatonin rhythms using bright light therapy improves ADHD symptoms of hyperactivity and impulsivity in adults independent of changes in sleep time, sleep efficiency, wake time or waking during sleeping87,90.”

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  1. Baird AL, Coogan AN, Siddiqui A, Donev RM, Thome J. Adult attention-deficit hyperactivity disorder is associated with alterations in circadian rhythms at the behavioural, endocrine and molecular levels. Mol Psychiatry. 2012; 17: 988– 95. 22105622
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Authors
Fargason, R. E., Fobian, A. D., Hablitz, L. M., Paul, J. R., White, B. A., Cropsey, K. L., & Gamble, K. L.
Affiliations
University of Alabama at Birmingham (US)
Corresponding author
Gamble, Karen L.
Venue
Journal of Psychiatric Research
Publisher
Elsevier BV
Published
2017-08
Volume
91
Pages
105-110
ISSN
0022-3956 (ISSN-L)
OpenAlex
W2593763381
Cited by
64
References
61
Citations by year
2026: 7 · 2025: 9 · 2024: 5 · 2023: 5 · 2022: 5 · 2021: 11 · 2020: 6 · 2019: 9 · 2018: 7
FWCI
3.68
Type
journal article
Language
en
Open access
Locations
  • Journal of Psychiatric Research (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
Eunice Kennedy Shriver National Institute of Child Health and Human Development (T32HD071866)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Health Sciences › Medicine › Psychiatry and Mental health › Attention Deficit Hyperactivity Disorder
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
Keywords
attention deficit hyperactivity disorder, bright light therapy, dim light melatonin onset, ADHD symptoms, insomnia comorbidity, sleep timing, hyperactivity/impulsivity, actigraphy, adult ADHD
MeSH terms
Adult, Attention Deficit Disorder with Hyperactivity, Circadian Rhythm, Female, Humans, Sleep Initiation and Maintenance Disorders, Male, Middle Aged, Phototherapy, Pilot Projects, Predictive Value of Tests, Sleep, Young Adult, Actigraphy

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