Contact information
Type
Scientific
Contact name
Dr Andrew Krystal
ORCID ID
Contact details
Duke University Medical Center
Box 3309
Durham
NC
27710
United States of America
kryst001@mc.duke.edu
Additional identifiers
EudraCT/CTIS number
IRAS number
ClinicalTrials.gov number
Protocol/serial number
N/A
Study information
Scientific title
Acronym
Study hypothesis
Self-report sleep ratings reflect the formation of a global impression that colors all of the ratings.
Ethics approval(s)
Ethics approval details not yet received as of 24/05/2006
Study design
Randomised comparison of ratings of sleep in subjects led to the belief that they had good versus bad nights of sleep
Primary study design
Observational
Secondary study design
Cohort study
Study setting(s)
Not specified
Study type
Treatment
Patient information sheet
Condition
Sleep quality
Intervention
Patients were asked to score their sleep rating after being led to believe that they had either:
1. A bad nights sleep, or
2. A good nights sleep
Comparisons were run between the actual sleep activity and the percieved sleep activity.
Intervention type
Other
Primary outcome measure
A single morning self-rating of:
1. Sleep latency
2. Time awake in the middle of the night
3. Total sleep time
Secondary outcome measures
1. Relationship of polysomnographic and self-reported measures of sleep latency
2. Time awake in the middle of the night
3. Total sleep time
Overall study start date
09/01/2005
Overall study end date
07/01/2006
Reason abandoned (if study stopped)
Eligibility
Participant inclusion criteria
1. Aged 18 - 64 years inclusive
2. Able to understand and cooperate with study procedures and give informed consent
Participant type(s)
Patient
Age group
Adult
Lower age limit
18 Years
Upper age limit
64 Years
Sex
Both
Target number of participants
20
Participant exclusion criteria
1. Any symptom of daytime sleepiness
2. Any difficulty falling asleep or staying asleep in the last month
3. Any active medical or psychiatric disease that is likely to affect sleep
4. Taking any medication that might affect sleep within five half-lives of screening
Recruitment start date
09/01/2005
Recruitment end date
07/01/2006
Locations
Countries of recruitment
United States of America
Study participating centre
Duke University Medical Center
Durham, NC
27710
United States of America
Sponsor information
Organisation
Duke University Medical Center (USA)
Sponsor details
Box 3309
Durham
NC
27710
United States of America
+1 919 681 8788
kryst001@mc.duke.edu
Sponsor type
University/education
Website
ROR
Funders
Funder type
University/education
Funder name
Duke University Department of Psychiatry (USA)
Alternative name(s)
Funding Body Type
Funding Body Subtype
Location
Results and Publications
Publication and dissemination plan
Not provided at time of registration
Intention to publish date
Individual participant data (IPD) sharing plan
IPD sharing plan summary
Not provided at time of registration
Study outputs
| Output type | Details | Date created | Date added | Peer reviewed? | Patient-facing? |
|---|