Effects of bright light exposure on human fear conditioning, extinction, and associated prefrontal activation

2018 ◽  
Vol 194 ◽  
pp. 268-276 ◽  
Author(s):  
Takuya Yoshiike ◽  
Motoyasu Honma ◽  
Naoto Yamada ◽  
Yoshiharu Kim ◽  
Kenichi Kuriyama
Keyword(s):  
Fear Conditioning ◽  
Light Exposure ◽  
Bright Light ◽  
Bright Light Exposure ◽  
Conditioning Extinction

scholarly journals Precision Light for the Treatment of Psychiatric Disorders

2018 ◽  
Vol 2018 ◽  
pp. 1-16 ◽  
Author(s):  
Sevag Kaladchibachi ◽  
Fabian Fernandez
Keyword(s):  
Psychiatric Disorders ◽  
Brain Function ◽  
Seasonal Affective Disorder ◽  
Light Exposure ◽  
Bright Light ◽  
Internal Clock ◽  
Light Pulses ◽  
Current Review ◽  
Flexible Architectures ◽  
Bright Light Exposure

Circadian timekeeping can be reset by brief flashes of light using stimulation protocols thousands of times shorter than those previously assumed to be necessary for traditional phototherapy. These observations point to a future where flexible architectures of nanosecond-, microsecond-, and millisecond-scale light pulses are compiled to reprogram the brain’s internal clock when it has been altered by psychiatric illness or advanced age. In the current review, we present a chronology of seminal experiments that established the synchronizing influence of light on the human circadian system and the efficacy of prolonged bright-light exposure for reducing symptoms associated with seasonal affective disorder. We conclude with a discussion of the different ways that precision flashes could be parlayed during sleep to effect neuroadaptive changes in brain function. This article is a contribution to a special issue onCircadian Rhythms in Regulation of Brain Processes and Role in Psychiatric Disorderscurated by editors Shimon Amir, Karen Gamble, Oliver Stork, and Harry Pantazopoulos.

Conflicting Bright Light Exposure during Night Shifts Impedes Circadian Adaptation

1997 ◽  
Vol 12 (1) ◽  
pp. 5-15 ◽  
Author(s):  
Paula J. Mitchell ◽  
Erin K. Hoese ◽  
Liwen Liu ◽  
Louis F. Fogg ◽  
Charmane I. Eastman
Keyword(s):  
Light Exposure ◽  
Bright Light ◽  
Bright Light Exposure ◽  
Night Shifts

Bright light exposure of a large skin area does not affect melatonin or bilirubin levels in humans

2000 ◽  
Vol 48 (11) ◽  
pp. 1098-1104 ◽  
Author(s):  
Niki Lindblom ◽  
Taina Hätönen ◽  
Maija-Liisa Laakso ◽  
Aino Alila-Johansson ◽  
Marja-Leena Laipio ◽  
...  
Keyword(s):  
Light Exposure ◽  
Bright Light ◽  
Skin Area ◽  
Bright Light Exposure ◽  
Large Skin

Randomized Trial of the Efficacy of Bright-Light Exposure and Aerobic Exercise on Depressive Symptoms and Serum Lipids

2002 ◽  
Vol 63 (4) ◽  
pp. 316-321 ◽  
Author(s):  
Sami J. Leppamaki ◽  
Timo T. Partonen ◽  
Jukka Hurme ◽  
Jari K. Haukka ◽  
Jouko K. Lonnqvist
Keyword(s):  
Depressive Symptoms ◽  
Aerobic Exercise ◽  
Randomized Trial ◽  
Serum Lipids ◽  
Light Exposure ◽  
Bright Light ◽  
Bright Light Exposure

The Effect of Light on Sleep and Sleep-Related Physiological Factors Among Patients in Healthcare Facilities: A Systematic Review

2019 ◽  
Vol 12 (4) ◽  
pp. 116-141
Author(s):  
Khatereh Hadi ◽  
Jennifer R. Du Bose ◽  
Young-Seon Choi
Keyword(s):  
Light Exposure ◽  
Bright Light ◽  
Light Sources ◽  
Related Factors ◽  
Healthcare Facilities ◽  
New Findings ◽  
Healthcare Environments ◽  
The Impact ◽  
Improve Patient ◽  
Bright Light Exposure

Objectives: Lighting is one of the environmental factors which can improve patient sleep in healthcare environments. Due to the high degree of variation in study designs and results on this topic, the implications have been difficult to interpret. This review consolidates studies on the impact of bright light exposure on sleep to identify lighting conditions that can be applied and researched in future healthcare environments. Methods: We searched for peer-reviewed articles on the impact of light on sleep or sleep-related outcomes in healthcare settings. We provided detailed analysis of the direct links between light and sleep, and a more cursory analysis of links between light and sleep-related factors, from 34 articles which met our inclusion criteria. Results: The current state of the literature includes evidence on how various durations and intensities of morning, midday, and evening bright light exposure, as well as whole-day light exposure interventions can improve specific aspects of sleep. Lighting interventions differed in all attributes (illuminance levels, exposure time, exposure duration, and spectral qualities) but showed promising results in improving patients’ sleep. Conclusions: Short-term bright light exposure in the morning, up to 2 hr of moderate (3,000–10,000 lux) morning exposures, up to 4 hr of moderate evening exposure, and whole-day exposures to lower illuminance levels (<3,000 lux) can improve patient sleep outcomes. Based on new findings on the mechanism through which light impacts sleep, future studies should be more specific about the spectral qualities of light sources.

scholarly journals Impact of a single, short morning bright light exposure on tryptophan pathways and visuo- and sensorimotor performance: a crossover study

2018 ◽  
Vol 37 (1) ◽  
Author(s):  
Wolfgang Schobersberger ◽  
Cornelia Blank ◽  
Friedrich Hanser ◽  
Andrea Griesmacher ◽  
Markus Canazei ◽  
...  
Keyword(s):  
Crossover Study ◽  
Light Exposure ◽  
Bright Light ◽  
Bright Light Exposure ◽  
Sensorimotor Performance

Use of bright light therapy for older adults with dementia

2020 ◽  
Vol 26 (4) ◽  
pp. 221-228
Author(s):  
Lisa L. Onega ◽  
Thomas W. Pierce
Keyword(s):  
Older Adults ◽  
Light Exposure ◽  
Bright Light ◽  
Light Therapy ◽  
Adjunctive Treatment ◽  
Evidence Based ◽  
Bright Light Therapy ◽  
The Past ◽  
Bright Light Exposure ◽  
Circadian Rhythm Disorders

SUMMARYBright light therapy is an accepted and commonly used treatment for seasonal affective and circadian rhythm disorders. In the past 20 years, researchers have examined the effectiveness of bright light therapy in improving depression and agitation in older adults with dementia. This article provides clinicians with a summary of the neurophysiology of bright light therapy, bright light research considerations, an evidence-based bright light protocol, problems related to bright light therapy, and clinical implications for bright light therapy in older adults with dementia. Bright light exposure is a safe, non-pharmacological treatment that is currently underutilised in this population. Clinicians may find bright light therapy beneficial as a primary or adjunctive treatment in reducing depression and agitation in older adults with dementia.

Daytime Vigilance after Morning Bright Light Exposure in Volunteers Subjected to Sleep Restriction

1998 ◽  
Vol 63 (5) ◽  
pp. 803-810 ◽  
Author(s):  
Chantal Lafrance ◽  
Marie Dumont ◽  
Paul Lespérance ◽  
Chantal Lambert
Keyword(s):  
Light Exposure ◽  
Bright Light ◽  
Sleep Restriction ◽  
Bright Light Exposure
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