Acute alerting effects of daytime exposure to specific wavelengths of light
- Conditions
- Primary health condition: Alertness and psychomotor vigilance in healthy human volunteers.Mental Health - Studies of normal psychology, cognitive function and behaviour
- Registration Number
- ACTRN12608000142336
- Lead Sponsor
- Monash University
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Recruiting
- Sex
- All
- Target Recruitment
- 120
(1) Male and female adults aged 18 to 30 years inclusive
(2) Healthy
(1) Individuals who have engaged in shiftwork/nightwork in the past 3 years and/or transmeridian travel in the past 3 months.
(2) Individuals who smoke, report high caffeine intake and/or high alcohol consumption.
(3) Individuals who screen positive for drugs of abuse following comprehensive urine toxicological analysis.
(4) Women who are pregnant, lactating or planning to become pregnant during the study period.
(5) A history of alcohol/drug dependence.
(6) Current, recent (<3 months) or chronic history of use of drugs or medication that affect the central nervous system (except non-steroid topical creams, oral contraceptives and occasional use of mild pain killers.
(7) History of psychiatric illness.
(8) Recent acute or chronic medical illness.
(9) Abnormal sleep patterns/sleep disorders.
(10) Auditory defects.
(11) Any form of photophobia including drug-induced, epilepsy, seizures, vertigo or migraine.
(12) Individuals with diseases of the visual system.
(13) Females who are not taking a medically approved form of birth control.
Study & Design
- Study Type
- Interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Psychomotor Vigilance Task mean reaction time (msec).[During and immediately after light exposure, expressed relative to baseline (i.e. immediately before light exposure).]
- Secondary Outcome Measures
Name Time Method Subjective sleepiness rating on the Karolinska Sleepiness Scale.[During and immediately after light exposure, expressed relative to baseline (i.e. immediately before light exposure).]