Circadian rhythm disorders insomnia
Conditions
Interventions
In Study 2, the subjects spend 6 hours in a dark (less than 1 lx illumination) laboratory and saliva is collected once an hour.
D003623
Sponsors
Kitamura Shingo
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: Study 1: 1) Persons who are between 20 and 79 years old at the time of response. 2) Who are able to respond to the questionnaire via the Internet. Study 2 1) Males and females between 20 and 60 years of age at the time of consent
Exclusion criteria
Exclusion criteria: Study 1:. 1) Persons with pre-existing medical conditions (cardiovascular, liver, endocrine system, brain/neurological, psychiatric, etc.), taking therapeutic drugs, or having a history of such conditions that may affect the study results 2) Persons who are dependent on alcohol or who are found to be in the habit of excessive alcohol consumption 3) Those who have a habit of taking drugs or supplements that affect sleep. 4) Pregnant, lactating, or planning to become pregnant during the study period 5) Who are using an implantable medical device such as a pacemaker 6) Any other person deemed inappropriate by the principal investigator. Study 2: The following are not included in the study 1) Persons with pre-existing medical conditions (cardiovascular, liver, endocrine, brain/neurological, psychiatric, etc.), taking therapeutic drugs, or having a history of such conditions that may affect the results of the study 2) Those who have engaged in time-lagged travel or shift work at least 6 months prior to the experiment. 3) Persons who have been found to be dependent on alcohol or to have excessive drinking habits 4) Persons with excessive smoking habits 5) Those who have a habit of taking drugs or supplements that affect sleep 6) Those with abnormal color vision 7) Those who have a phobia of dark places 8) Other subjects deemed inappropriate by the principal investigator
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Association between chronotypes determined by MEQ and rMEQ, respectively Association between DLMO and sleep rhythm phase and chronotypes determined by rMEQ | — |
Secondary
| Measure | Time frame |
|---|---|
| Questionnaires with significant contribution to chronotype determination Association of chronotype with sleep irregularities | — |
Contacts
Public ContactEto Taisuke
National Center of Neurology and Psychiatry
Outcome results
None listed