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Dissertation
Delayed discounting, appetitive responsivity and dieting in the prediction of hedonically-driven food intake
Doctor of Philosophy (Ph.D.), Drexel University
Apr 2013
DOI:
https://doi.org/10.17918/etd-4176
Abstract
Research suggests that characteristics identified in obese individuals, such as impulsive decision-making and appetitive responsivity, may exist in weight gain prone populations. This study examined the independent and interactive effects of three variables on food intake: dieting status (historical dieting or lack thereof), impulsive decision-making (measured via a delay discounting task) and hedonic hunger (assessed with the Power of Food Scale, PFS). Eighty participants ate a standard meal, completed self-report measures and the delay discounting task, and participated in a sham taste test of palatable foods. PFS scores, historical dieting and high delay discounting were all hypothesized to predict greater snack food intake independently, as was the interaction of these variables. None of these variables demonstrated significant main effects or interaction effects predictive of ad lib highly palatable food consumption. However, post hoc analyses demonstrate some differences between historical dieters and those who have never dieted before, despite a lack of differences in overall snack food intake. Potential explanations are discussed as well as possibilities for future research.
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Details
- Title
- Delayed discounting, appetitive responsivity and dieting in the prediction of hedonically-driven food intake
- Creators
- Alice Valiant Ely - DU
- Contributors
- Michael R. Lowe (Advisor) - Drexel University (1970-)
- Awarding Institution
- Drexel University
- Degree Awarded
- Doctor of Philosophy (Ph.D.)
- Publisher
- Drexel University; Philadelphia, Pennsylvania
- Resource Type
- Dissertation
- Language
- English
- Academic Unit
- Psychological and Brain Sciences (Psychology); College of Arts and Sciences; Drexel University
- Other Identifier
- 4176; 991014632405204721