Beneficial effect of morning light after one night of sleep deprivation

Viola, Antoine; Hubbard, Jeffrey; Comtet, Henri; Ruppert, Élisabeth; Bourgin, Patrice

doi:10.1016/j.sleep.2015.02.039

Cited by 3 publications

(10 citation statements)

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“…The current study was conducted in an effort for the first time to explore the effects of bright indoor light on alertness, mood, and task performance during the post-lunch dip period among healthy university students who were midday nap deprived, extending previous studies about the intervention effects of light on performance deficits caused by nighttime sleep restriction and post-lunch dip in non-habitual nappers ( 9 , 22 , 24 , 31 , 32 , 50 ). The current findings suggested that bright blue-enriched white light (1,000 lx, 6,500 K, at eye level) vs. normal indoor light exposure (100 lx, 4,000 K, at eye level) in the early afternoon could hold the potential to counteract the post-lunch dip in alertness, negative mood, and working memory performance among habitual nappers.…”

Section: Discussionmentioning

confidence: 89%

“…For example, Wright et al ( 31 ) found bright light (2,500 lx) could enhance both nighttime performance and morning performance during extended sleep deprivation. A following study by Viola et al ( 32 ) reported the beneficial role of bright light on subjective and objective alertness and working memory performance after one night of sleep deprivation.…”

Section: Introductionmentioning

confidence: 99%

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Does Bright Light Counteract the Post-lunch Dip in Subjective States and Cognitive Performance Among Undergraduate Students?

Zhou

Chen

Xue

et al. 2021

Front. Public Health

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The post-lunch dip in alertness and performance was widely experienced during the early afternoon. Taking a short nap was documented as a practical strategy for habitual nappers to counteract the decline of alertness and performance. Yet, it remains unknown whether bright light exposure in the early afternoon working hours could alleviate the performance deficits caused by a post-lunch nap loss for habitual nappers. Seventeen undergraduate students who had a long-term habit of taking a post-lunch nap were assigned to three interventions: (1) a short nap + normal indoor light (100 lx, 4,000 K at eye level); (2) no nap + normal indoor light, and (3) no nap + blue-enriched bright light (1,000 lx, 6,500 K at eye level), in which subjective alertness (Karolinska Sleepiness Scale, KSS), mood (Positive and Negative Affect Schedule, PANAS), and task performance in sustained attention (psychomotor vigilance test, PVT), response inhibition (go/no-go task), and working memory (paced visual serial addition test, PVSAT) were measured. Results showed that a post-lunch nap deprivation significantly increased subjective sleepiness and negative mood and impaired performance in PVT and PVSAT, while exposure to bright blue-enriched white light vs. normal indoor light in the early afternoon significantly relieved such negative effects on mood, sleepiness, and performance in PVSAT; subjective positive mood and performance in PVT and go/no-go task remained unaffected with light intervention. These findings suggested that bright blue-enriched white light exposure could be a potential strategy for those who are suffering from drowsiness and low working memory following a habitual midday nap loss.

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Section: Discussionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Does Bright Light Counteract the Post-lunch Dip in Subjective States and Cognitive Performance Among Undergraduate Students?

Zhou

Chen

Xue

et al. 2021

Front. Public Health

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“…Recent meta-analytic evidence showed a signifi cant reduction of depressive symptoms for nonseasonal depression after BLT administered for 1-8 weeks (Al-Karawi & Jubair, 2016). BLT synchronizes the sleep-wake rhythm, which is often disturbed in patients with sleep and mood disorders (Wirz-Justice et al, 2013). Morning BLT suppresses the secretion of melatonin and leads to an increased wakefulness during the day as well as to an advanced sleep phase, whereas evening BLT leads to a delayed sleep phase.…”

Section: Introductionmentioning

confidence: 99%

Feasibility and Efficacy of Bright Light Therapy in Depressed Adolescent Inpatients

Kirschbaum-Lesch

Gest

Legenbauer

et al. 2018

Zeitschrift für Kinder- und Jugendpsychiatrie und Psychotherapi

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“…Following feedback from the participants in our pilot studies, light boxes are replaced by light glasses that allow patients to carry on with everyday tasks and fit into their daily routine while giving the same results as a 10,000 lx light box ([ 26 , 27 ]). To ensure an appropriate and constant number of lux administered in each condition, intensities are quantified using a Lux meter (PCE-172).…”

Section: Methodsmentioning

confidence: 99%

“…BLT is promising due to robust evidence in adults, easy application, low side effects, and heightened compliance [ 25 ]. Light glasses have been shown to lead to the same results as a 10,000 lx light box ([ 26 , 27 ]). However, empirical evidence on BLT for youth is scarce and pilot studies suffer from small sample sizes, lack of randomization, shortness of treatment duration, and lack of control settings.…”

Section: Introductionmentioning

confidence: 99%

Adolescent depression: Study protocol for a randomized, controlled, double-blind multicenter parallel group trial of Bright Light Therapy in a naturalistic inpatient setting (DeLight)

Holtmann

Mokros

Kirschbaum-Lesch

et al. 2018

Trials

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BackgroundDepressive disorders are among the most prominent health problems in youth. Even with the best available pharmacological and non-pharmacological treatments, remission rates are low. Without early treatment, depression in youth is associated with a high risk of symptom progression, chronicity, co-morbidity, and suicidal behavior. Thus, adolescent depression is a prime candidate for innovation in treatment. In depressive adults, meta-analytic evidence has proven that bright light therapy (BLT) is a potent low-threshold intervention, promising due to easy application, low side effects, and optimized compliance. In adolescents, studies with small samples show promising effects. This randomized controlled trial will examine the effectiveness of BLT in youth inpatients.Methods/designIn this randomized, controlled, double-blind multicenter parallel group trial, morning BLT is applied for four weeks in addition to treatment as usual (TAU) for depressed youth inpatients (daily morning exposure to bright light via light-emitting glasses, 10,000 lx, for 30 min) and will be compared to a control condition (placebo light treatment, red light, identical light glasses). The primary objective is to assess whether BLT reduces symptoms of depression in youth with greater effect compared to placebo light therapy. Secondary objectives are to examine the impact of BLT on responder status, application of antidepressant medication, and further depression-related symptoms (sleep, activity, quality of life, satisfaction with health, general psychopathology, alertness, and circadian function). N = 224 patients will be recruited in a naturalistic inpatient setting. A follow-up will be carried out after three and six months.DiscussionThe study aims to discuss and evaluate BLT as an additive method supporting standardized clinical procedures dealing with severe to moderate depressive symptoms in youth.Trial registrationGerman Clinical Trials Register, DRKS00013188. Registered on November 30, 2017.Electronic supplementary materialThe online version of this article (10.1186/s13063-018-2949-0) contains supplementary material, which is available to authorized users.

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Beneficial effect of morning light after one night of sleep deprivation

Cited by 3 publications

References 0 publications

Does Bright Light Counteract the Post-lunch Dip in Subjective States and Cognitive Performance Among Undergraduate Students?

Does Bright Light Counteract the Post-lunch Dip in Subjective States and Cognitive Performance Among Undergraduate Students?

Feasibility and Efficacy of Bright Light Therapy in Depressed Adolescent Inpatients

Adolescent depression: Study protocol for a randomized, controlled, double-blind multicenter parallel group trial of Bright Light Therapy in a naturalistic inpatient setting (DeLight)

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