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Effects of Different Colors of Light on Human Physiology

NCT00200863 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 47

Last updated 2014-08-12

No results posted yet for this study

Summary

This study will determine which color of light is most effective in stimulating a range of biological functions in humans including activation of sleep-wake regulatory system (alertness, performance, microsleeps, brain activity), activation of the nervous system (heart rate, temperature, blood pressure, breathing rate), and shifting the timing of the internal 24-hour (circadian) pacemaker.

Conditions

  • Healthy
  • Circadian Rhythm

Interventions

DEVICE

Monochromatic visible light exposure

Monochromatic light in the visible range from 420-620 nm up to 60uW/cm2 for 6.5 hours

Sponsors & Collaborators

  • National Center for Complementary and Integrative Health (NCCIH)

    collaborator NIH

  • Brigham and Women's Hospital

    lead OTHER

Principal Investigators

  • Steven W Lockley, Ph.D. · Brigham and Women's Hospital, Harvard Medical School

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
30 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2005-04-30
Primary Completion
2007-02-28
Completion
2007-02-28

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00200863 on ClinicalTrials.gov