Advertisement

Topics

Bright Light: A Novel Treatment for Anxiety

2014-08-27 03:16:03 | BioPortfolio

Summary

The primary aim of this research was to examine the influence of bright light on anxiety in high-anxious young adults. In an acute exposure study, participants were randomly assigned to 45 min of either (1) bright light (3,000 lux) or (2) a placebo inactivated negative ion generator. Treatments were initiated ≤1 hr after awakening. At 10 min before and 30 min after the treatments, state anxiety, mood, and blood pressure were assessed.

Following the acute exposure study, participants performed a 5-week study. Following a a 1-week baseline, participants were randomly assigned to four weeks of daily exposure to either (1) bright light (45 min/day; 3,000 lux) or (2) placebo inactivated negative ion generator, which were initiated ≤1 hr after awakening. Before and after the experiment, clinical ratings were conducted with the Hamilton Anxiety Scale, the Hamilton Depression Scale, and the Clinical Global Impressions scale (CGI). Following baseline, and following each week of treatment, blood pressure, as well as questionnaires for state anxiety, depression, mood, sleep, and side effects were assessed.

Study Design

Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Safety Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Conditions

Anxiety

Intervention

Litebook Bright Light Box, Litebook inactivated negation ion generator (the placebo)

Location

Chronobiology Lab, University of South Carolina
Columbia
South Carolina
United States
29208

Status

Completed

Source

University of South Carolina

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:16:03-0400

Clinical Trials [617 Associated Clinical Trials listed on BioPortfolio]

Effect of Increased Light Exposure on Fatigue in Breast Cancer

Patients treated with chemotherapy complain of poor sleep, fatigue and depression. In addition, chemotherapy disrupts the body's internal "biological clock", which may make sleep, fatigue ...

The Light Heart Study: Daily Light Box Use for Depressive Symptoms in Patients With Stage B Heart Failure

The Light-Heart study is a randomized, double-blind, controlled trial investigating the effects of bright white light (BWL) therapy on depressive symptoms, quality of life, and functioning...

Bright Light: An Adjunct Treatment for Combat Posttraumatic Stress Disorder (PTSD)

We are testing novel treatments for combat PTSD: bright light exposure and negation ion exposure.

Treating Cancer-Related Fatigue Through Systematic Light Exposure (Light for Fatigue Study)

Cancer related fatigue (CRF) is the most common cancer side effect and can severely interfere with activities of daily living long after completion of medical treatment. Pharmacologic agen...

Reducing Cancer Side-effects With Systematic Light Exposure

The main purpose of this interdisciplinary proposal is to conduct two randomized controlled trial (RCT) of the efficacy of self-administered systematic light exposure (Bright White Light (...

PubMed Articles [6007 Associated PubMed Articles listed on BioPortfolio]

The Acute Effects of Intermittent Light Exposure in the Evening on Alertness and Subsequent Sleep Architecture.

Exposure to bright light is typically intermittent in our daily life. However, the acute effects of intermittent light on alertness and sleep have seldom been explored. To investigate this issue, we e...

Bright-light exposure during daytime sleeping affects nocturnal melatonin secretion after simulated night work.

The guidelines for night and shift workers recommend that after night work, they should sleep in a dark environment during the daytime. However, staying in a dark environment during the daytime reduce...

Detection of stably bright squeezed light with the quantum noise reduction of 12.6  dB by mutually compensating the phase fluctuations.

We present a mutual compensation scheme of three phase fluctuations, originating from the residual amplitude modulation (RAM) in the phase modulation process, in the bright squeezed light generation s...

Efficacy of bright light therapy in bipolar depression.

For 30 years, bright light therapy (BLT) has been considered as an effective, well-tolerated treatment for seasonal affective disorder (SAD). Because of low response rates, new treatment strategies ar...

Bright light therapy improves cancer-related fatigue in cancer survivors: a randomized controlled trial.

Cancer-related fatigue (CRF) is a common and distressing symptom that can persist after cancer treatment has concluded. Bright light therapy has shown preliminary efficacy in reducing CRF, but its imp...

Medical and Biotech [MESH] Definitions

Relatively bright light, or the dazzling sensation of relatively bright light, which produces unpleasantness or discomfort, or which interferes with optimal VISION, OCULAR. (Cline et al., Dictionary of Visual Science, 4th ed)

Combustion or burning in which substances combine chemically with oxygen typically giving out bright light, heat, and smoke.

Light-induced change in a chromophore, resulting in the loss of its absorption of light of a particular wave length. The photon energy causes a conformational change in the photoreceptor proteins affecting PHOTOTRANSDUCTION. This occurs naturally in the retina (ADAPTATION, OCULAR) on long exposure to bright light. Photobleaching presents problems when occurring in PHOTODYNAMIC THERAPY, and in FLUORESCENCE MICROSCOPY. On the other hand, this phenomenon is exploited in the technique, FLUORESCENCE RECOVERY AFTER PHOTOBLEACHING, allowing measurement of the movements of proteins and LIPIDS in the CELL MEMBRANE.

Investigative technique commonly used during ELECTROENCEPHALOGRAPHY in which a series of bright light flashes or visual patterns are used to elicit brain activity.

Failure or imperfection of vision at night or in dim light, with good vision only on bright days. (Dorland, 27th ed)

More From BioPortfolio on "Bright Light: A Novel Treatment for Anxiety"

Advertisement
Quick Search
Advertisement
Advertisement

 

Relevant Topics

Anxiety Disorders
Anxiety is caused by stress. It is a natural reaction, and is beneficial in helping us deal with tense situations and pressure. It is deterimental when is becomes an excessive, irrational dread of everyday situations. The most common types of anxiety di...

Psychiatry
Psychiatry is the study of mental disorders and their diagnosis, management and prevention.  Conditions include schizophrenia, severe depression and panic disorders among others. There are pharmaceutical treatments as well as other therapies to help...

Women's Health
Women's Health - key topics include breast cancer, pregnancy, menopause, stroke Follow and track Women's Health News on BioPortfolio: Women's Health News RSS Women'...


Searches Linking to this Trial