Food Choices in Healthy Weight Women

Status Completed

Clinical Trial Summary

This study will examine differences in habituation to foods high in sugar and fat content versus those that are not, in normal weight women.

Clinical Trial Description

Participants will complete two experimental sessions, in which habituation to chocolate cake and dried apricots will be measured, with each session measuring habituation rate to one food. Upon arrival to the session, participants will write down what they have consumed and the minutes of physical activity they have engaged in during the previous 24 hours. Participants will rate their feelings of hunger and fullness using a 100mm VAS. They will also rank their liking of the food being used in the session using a 100mm VAS. Participants will be given a peanut butter flavored granola bar, containing 190 kcal, and be instructed to consume all of the bar.

Next, participants will complete a computer generated task to measure habituation to a food (chocolate cake or apricots). The computer task will be programmed at a variable interval of 120 ± 42 seconds (VI-120) reinforcement schedule, so that participants will be rewarded one point for the first response made after approximately 120s have passed. The computer task consists of two squares, one that flashes red every time a mouse button is pressed and another square that flashes green when a point is earned. The habituation phase will be 24 minutes, divided into 12, 2-minute trials, during which participants can earn points towards access to 75 kcal portions of the food that is being measured. Participants will receive the food immediately after each point is earned to consume and can continue to play the computer task while eating. Participants will be instructed that when they no longer want to earn access to the food they can go to another table and engage in the activities provided (i.e., reading magazines). After the computer task, participants will rate their feeling of hunger, fullness, and liking of the food. During the computer task the number of consecutive two-minute time blocks before responding ceases, as well as the overall pattern of responding, will be measured. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02481362
Study type	Interventional
Source	The University of Tennessee, Knoxville
Contact
Status	Completed
Phase	N/A
Start date	June 2015
Completion date	May 2016

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.