None (Healthy adults)
Conditions
Interventions
inhalation of black tea flavor
Sponsors
Kirin Company, Limited
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1) Individuals aged from 20 to 65 years, when giving the informed consent. 2) Individuals giving the written informed consent.
Exclusion criteria
Exclusion criteria: 1) Individuals who declare the allergy symptoms against test diets. 2) Individuals who have anamnesis of cranial nerve disease. 3) Individuals who have anamnesis of the autonomic nervous system. 4) Individuals who have mental symptoms, or who have been diagnosed as mental disorder. 5) Individuals who are being treated with hormone, or who have been diagnosed as menopausal symptoms 6) Individuals who can't perform the study because it's olfactory impairment. 7) Individuals who regularly take drugs or health foods affecting cognitive functions 8) Individuals who regularly take drugs of health foods affecting autonomic nervous system. 9) Individuals who is not suitable for subjects by pre-test questionnaire. 10) Individuals who are planned to participate in other clinical study. 11) Individuals who are pregnant or breastfeeding during the study. 12) Individuals who sometimes have irregular lifestyles during the study. 13) Individuals who are judged as unsuitable for the study by the investigator for other reason.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Pupillary reaction to light Cerebral blood flow | — |
Secondary
| Measure | Time frame |
|---|---|
| Cognitive tasks Questionnaires | — |
Countries
Japan
Contacts
Public ContactKeiko Kobayashi
Kirin Company, Limited Research and Development Division, Research Laboratories for Health Science & Food Technologies
Outcome results
None listed