Reinforcing Value of Food
Conditions
Keywords
food reinforcement, food liking, motivation, dopamine, obesity, energy density, snacks
Brief summary
The investigators previous studies have shown that obese and non-obese individuals respond differently to daily intake of snack food. The purpose of this study was to determine whether these differences are specific to high energy density snack foods. The investigators hypothesized that obese individuals would show an increase in motivation to obtain high energy density snack foods after two weeks of daily consumption, but that non-obese women and obese women consuming low energy density foods would have reduced motivation to consume snack foods after two weeks of daily consumption.
Interventions
BEHAVIORALDaily snack food intake
participants consumed 60 gram portions of either low energy density or high energy density snack foods every day for two weeks.
Sponsors
State University of New York at Buffalo
Study design
Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
FEMALE
Age
18 Years to 50 Years
Healthy volunteers
Yes
Inclusion criteria
* 18 - 50 years old, female, like study foods.
Exclusion criteria
* current smoker, currently on a diet, medical conditions or medication affecting appetite (ex. methylphenidate).
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Number of operant responses | about one month | Participants were asked to click a mouse button to gain access to food. A point was earned after a certain number of button presses and after 5 points were earned, the participant received 100 kcal portion of food. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Food liking | about one month | participants rated how much they liked the food on a Likert-type scale. |
Countries
United States
Outcome results
None listed