N/a, the study is about the cognitive performance of healthy participants air quality
Conditions
Interventions
The indoor CO2 concentration in the respiratory chambers will vary between the
two tests days. It will be either 800 ppm (0.08%) high, or 3000 ppm (0.3%)
high.
Sponsors
Nutrition and Movement Sciences (VBW)
Eligibility
Age
18 Years to 64 Years
Inclusion criteria
Inclusion criteria: - Adults: 25 to 50 years old - White-collar workers: Participants that conduct cognitive task and low physical effort on a daily basis - BMI between 18.5 and 25 - Generally healthy, no medication, except for contraceptives for woman - Non-smokers or person who quit smoking more than five years ago
Exclusion criteria
Exclusion criteria: - Persons who are unemployed - Persons with a disorder or disease (Parkinson, Attention Deficit Hyperactivity Disorder (ADHD), Alzheimer, diabetes, cardiovascular disorder, respiratory impairments (for example asthma), hypertension, obesity, or any other condition that can impair the lung function) - Athletes: no individuals who do endurance sports on a professional basis or more than 5 times a week for more than 2 hour - Any medication or medical condition that might interfere with the physiological outcome parameters or in some regards impair cognition - Individuals with a high level of caffeine consumption (determined by the validated Caffeine Consumption Questionnaire [Irons et al]) - Shift workers - Color blindness - Pregnancy
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The main study parameters is the test scores of the CANTAB cognition tests. | — |
Secondary
| Measure | Time frame |
|---|---|
| The secondary parameters are the choices in the lotteries determining risk and time preferences, the answers from questionnaires about risk and time preferences, the changes in metabolic energy expenditure, as well as the following physiological parameters: heart rate variability, CO2 blood concentration, O2 saturation level, physical activity level, blood pressure, skin temperature, and breathing rate. Subjects will also receive a heuristics battery survey at the end of the test day, which measures the sensitivity to bias behavior. This includes measuring if automatic processes are tended to make more often than deliberative decisions in order to solve a problem. | — |
Countries
Netherlands
Outcome results
None listed