Social influence Colour Associations Popularity Taste Choice Healthiness Attractiveness
Conditions
Interventions
fMRI experiment where participants see and taste supermarket products
Sponsors
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO grant number: 057-13-001)
Eligibility
Inclusion criteria
Inclusion criteria: • Age: 18 - 30 years old • BMI: 18.5 – 27 kg/m2 • Healthy (as judged by the participant) • Being right handed • Users of the used product categories (e.g. dairy drinks) at least 5 consumption occurrences a year. • Willing to comply with the study procedures • Willing to be informed about incidental findings of pathology
Exclusion criteria
Exclusion criteria: • Colour-blind • Having difficulties with tasting, smelling, swallowing or eating • Weight loss or weight gain of 5 kg or more during two months (preceding the screening session) • Stomach or bowel diseases • Diabetes, thyroid disease, kidney disease and other chronical disorders • Having epilepsy or other neurological disorders • Having claustrophobia, schizophrenia or another mental illness • Usage of daily medication other than oral contraceptives, paracetamol or H1-antihistaminergic drugs • Pregnancy during the last 6 months, having the intention to become pregnant or lactating • Smoking on average more than one cigarette/cigar a day • Being allergic/intolerant for products under study • Working or doing an internship/thesis at the Department of Human Nutrition (WUR) • Working or doing an internship/thesis at the Department of Marketing and Consumer Behaviour (WUR) • Current participation in other (medical) research (except the EetMeetWeet study) • Having a history of or current alcohol consumption of on average more than 21 units per week • Having objections against being informed about incidental findings of pathology and against the general physician being informed about incidental findings of pathology (see F1 Inclusion questionnaire) • Having a contra-indication to MRI scanning (including, but not limited to): • Pacemakers and defibrillators • Intraorbital or intraocular metallic fragments • Ferromagnetic implants • Presence of non-removable metal objects in the mouth • Presence of non-removable piercings
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Experimental task 1: Social influences The main study parameter is the difference in brain activation when (1) evaluating packages containing information on popularity or not, and (2) when indicating purchase intention between conditions. Experimental task 2: Colour cue The main study parameter is the difference in brain activation when evaluating packages containing different colours (signalling healthiness or attractiveness) combined with tasting. | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary parameters Social influences The secondary study parameter is to assess the use of (brain) activity coefficients as mediators in choice prediction model. Secondary parameters Colour cue The secondary study parameter is the difference in brain activation when evaluating packages containing different colours (signalling healthiness or attractiveness) without tasting. We are also interested in the difference in brain activation when evaluating our commercially available dairy drink, or enhanced/diluted dairy drink. | — |
Contacts
Public ContactIrene Tijssen
Afdeling Humane Voeding, Wageningen University
Outcome results
None listed