None listed
Conditions
Interventions
Others(bright light exposure) : Group A: Receive one hour of morning bright light (10,000 lux) exposure daily for 14 days
Group B: Receive one hour of morning dim light (300 lux) exposure daily for 14
Sponsors
Ewha Womans University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: - Healthy male and female volunteers between the ages of 19 and 45 who have poor subjective sleep quality (Pittsburgh Sleep Quality Index score >5).
Exclusion criteria
Exclusion criteria: - Diagnosed with insomnia - Possibility of drug-induced sleep disorders due to current intake of medication (e.g. corticosteroids, statins) - Had taken sleeping pills (e.g. Zolpidem, Benzodiazepines) during the past 2 months - Diagnosed with any major medical or neurological disorders assessed during medical history taking, physical examination, or laboratory tests - Having neurological abnormalities or any disorders that may affect brain MR imaging (e.g. history of penetrating or open head injury, epilepsy, multiple sclerosis, brain tumor, or cerebrovascular disorder) - Diagnosed with any axis 1 psychiatric disorders - History of traumatic brain injury with loss o - Any contraindications to MRI (e.g. clasutrophobia, metallic device) - Planning for pregnancy during the period of study participation, currently pregnant or breastfeeding
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Quality of sleep by Pittsburgh Sleep Quality Index | — |
Secondary
| Measure | Time frame |
|---|---|
| Sleep latency measured by using actigraphy | — |
Countries
Korea, Republic of
Contacts
Public ContactJungyoon Kim
Ewha Womans University
Outcome results
None listed