Effect of daytime naps on performance in decision-making task
- Conditions
- Healthy subject
- Registration Number
- JPRN-UMIN000041885
- Lead Sponsor
- niversity of Tsukuba
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Complete: follow-up continuing
- Sex
- All
- Target Recruitment
- 120
Not provided
Participants will be excluded from the experiment based on the following criteria. 1)Irregular lifestyle (Regular: sleep time between 9pm and 1am, wake time between 6am and 9am, 7-9 hours of sleep) 2)BMI less than 18.5 or greater than 25 3)Worked night shifts (after 10pm) 3 months prior to the experiment 4)Travel across time zones with time difference of 3 hours or more, 3 months prior to the experiment 5) Consumes alcohol regularly (40g (2 cans of beer) or more twice a week a more) 6) Smoker 7) Consumes more than 300mg (5 cups of 150mL) of coffee every day 8) MEQ score of less than 30 (extreme evening type) or greater than 70 (extreme morning type) 9) Pittsburgh Sleep Quality Index score of greater than 5.5 10)Claustrophobic 11)Pregnancy or its possibility 12)Lactation 13)Those who have a disease that may change suddenly or its history 14)Those who have been treated for psychiatric disorders or sleep disorders, and those who have symptoms that are currently being treated 15)Subjects judged by the investigator to be inappropriate
Study & Design
- Study Type
- Interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method 1)Iowa gambling task (IGT) performance
- Secondary Outcome Measures
Name Time Method 1)Skin conductance response during IGT 2)Heart rate variability during IGT 3)Blood flow during IGT 4)Questionnaire about IGT 5)Sleep stages evaluated by polysomnography 6)Evaluation of sleep using wrist-watch type actigraphy (Fitbit Ltd.) and MotionWatch8 (CamNtech Ltd.) 7)Skin conductance response, heart rate variability and blood flow during sleep 8)Psychomotor vigilance test performance 9)Subjective sleepiness and mood