Study of subliminal processing, interoception, and food noise

Recruiting

18 years - 45 years

All

100 participants needed

1 Location

Brief description of study

Researchers at Monell Chemical Senses Center are conducting research on how eating behavior is influenced by internal body states and external food-related states. We are looking for healthy young adults (18 to 45) to participate in this study.

Detailed description of study

We are looking for volunteers to complete two in person study visits over the course of a few weeks. The first visit will last up to 3 hours and will be at Pennovation (3401 Grays Ferry), the second will last up to 2.5 hours and will be at Monell Chemical Senses Center (3500 Market Street). Participants will also be asked to complete two tasks online between in person visits. Each online task will take <15 minutes.

During the visits, participants will complete one MRI scan (~1 hour and 15 minutes), a variety of cognitive and behavioral tasks, questionnaires, a blood glucose test, a beverage sampling test, and body composition measures. Participants will be asked to fast for 8 hours before the session.

Participants will be compensated $120 for the first visit and $100 for the second visit. There will be a completion bonus for $20 for completing the between visit tasks. This results in up to $240 of possible compensation.

To determine if you qualify for the study, please fill out the screening form which will take 5 to 10 minutes. We will contact you if you are eligible.

https://projectredcap.monell.org/surveys/?s=7EE3737T478XFKLW

If you have questions about your rights as a human research participant at any time, please contact the Institutional Review Board at (215) 898-2614.

Eligibility of study

You may be eligible for this study if you meet the following criteria:

Conditions: Healthy
Age: 18 years - 45 years
Gender: All

Inclusion

BMI 18.5 to 40
Speak English Fluently
Age 18 to 45 years

Exclusion

Serious medical problem (e.g. cancer, diabetes) diagnosed by a medical professional
MRI contraindication (e.g. metal implants, braces, etc)
Previous treatment for eating disorder or drug/alcohol abuse/addiction
Current major psychiatric disorder (e.g. depression, generalized anxiety, ADHD)
Current dieting using a structured plan (e.g. weight watchers) or actively trying to lose weight
Use of medications that affect weight (e.g. semaglutide, tirzepatide, etc)
Current regular use (> 3 times per week) of illicit or psychoactive drugs (e.g. marijuana or cocaine)
Current regular (>3 times per week) nicotine intake
Food allergies or dietary restrictions to study foods
Currently pregnant or breastfeeding

Updated on 02 Apr 2026. Study ID: 25-2307

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