This study seeks to determine if non-esterified fatty acid (NEFA) taste detection thresholds change with repeated testing. Threshold testing for NEFA taste has been reported by a number of laboratories, including our own; however, these studies have reported data for only one testing occasion. The investigators seek to conduct repeated testing to measure the test-retest reliability of these methods. The investigators believe that with repeated exposure to NEFA, a person's sensitivity increases. The investigators are also testing the efficiency of testing by two methods (forced-choice ascending trial versus staircase). Additionally, the association between taste responses, diet and BMI will be explored.
Study Type
OBSERVATIONAL
Enrollment
48
Purdue University
West Lafayette, Indiana, United States
Non-esterified fatty acid detection thresholds in humans
Time frame: 6 months
BMI
Time frame: Baseline
Habitual fat intake
Block Rapid Dietary Fat Screener will be used as well as the ASA-24.
Time frame: Baseline
testing method
Comparison of time to maximum sensitivity by participants based on forced-choice versus staircase stimulus presentation techniques.
Time frame: 6 months
hunger
Visual analog scale
Time frame: each visit
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