The amount of light to achieve optimal alertness as a function of time of day

The amount of light to achieve optimal alertness as a function of time of day - Light and alertness

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

NL-OMON

Registry ID

NL-OMON43585

Enrollment

Registered

2016-02-23

Start date

2016-04-04

Completion date

Unknown

Last updated

2024-04-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

alertheid overdag Alertness Vigilance

Interventions

High intensity polychromatic white light (2000 lx, 1000 lx, 500 lx, 250 lx, 125 lx) One participant will be exposed to one intensity polychromatic white light throughtout the experiment

Eligibility

Age

18 Years to 99 Years

Inclusion criteria

Inclusion criteria: Men and Women Between 20 to 30 years

Exclusion criteria

Exclusion criteria: Use of photosensitizing medication Use of sleep medication Drinking moderate to high level of caffeine during the day (5 or more cups) Smoking Diabetic disease Diagnosed with colour-blindness Performing shift work scheduled in 3 months prior to participation Travelling over 2 or more time zones 1 month prior to participation A score of >18 on Epworth Sleepiness Scale

Design outcomes

Primary

Measure	Time frame
The main study parameter is subjective alertness measured by the KSS questionnaire.	—

Secondary

Measure	Time frame
Secondary parameters are objective alertness, measured by physiological parameters: PUI and skin temperature. In addition, indirect parameters, measured through the auditory Sustained Attention to Response Task , are used.	—

Countries

Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)