geen healthy participants
Conditions
Interventions
Two groups (one follicular and one luteal
both n=20) receive 4 capsules
containing 400 mg tryptophan, resulting in a total dose of 1.6 g tryptophan.
Two groups (one follicular and one luteal
both n=20) receive 4 placebo
capsules.
Sponsors
Universiteit Leiden
Eligibility
Age
18 Years to 99 Years
Inclusion criteria
Inclusion criteria: Healthy women, Dutch-speaking Age 18-30 BMI 18-35 Regular menstrual cycle (22-35 days)
Exclusion criteria
Exclusion criteria: Use of sex hormones or hormonal contraceptives Use of tryptophan supplements Medical or psychiatric illness, or medication use Breastfeeding Smoking of drug use
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Accuracy and reaction time on the facial expression recognition test (cognitive test). | — |
Secondary
| Measure | Time frame |
|---|---|
| Scores on other cognitive tests and questionnaires that measure mood and cognitive reactivity. | — |
Countries
Netherlands
Outcome results
None listed