Title page for ETD etd-04092008-135815

Type of Document Master's Thesis
Author Baillie, Lauren
URN etd-04092008-135815
Title The Effects of Food Deprivation on Caffeine and Food Reinforcement in Females
Degree Master of Arts (M.A.)
Department Psychology
Advisory Committee
Advisor Name Title
Amy Copeland Committee Chair
Alex Cohen Committee Member
Paula Geiselman Committee Member
  • nicotine
  • eating disorders
  • dietary resraint
Date of Defense 2007-12-06
Availability unrestricted
This study examined the reinforcing value of caffeine and food in a sample of 14 normal-weight females who indicated some degree of dietary restraint, and consumed caffeine daily. Eligible individuals participated in two sessions, one of which required a 24-hour fast. During both sessions, participants completed measures assessing caffeine withdrawal symptoms, urge to drink caffeine, hunger, and a multiple-choice questionnaire (MCQ) requiring them to earn points towards either snack foods or caffeinated beverages. There were no significant differences between the fasting and non-fasting conditions on MCQ scores, though the means were in the predicted direction (i.e., participants appeared to work harder for caffeine in the fasting session than in the non-fasting one). Between group differences were analyzed to determine if smokers worked harder for caffeine than non-smokers on the MCQ. Again, no significant differences were found, but means were in the predicted direction (i.e., smokers worked harder than non-smokers in both conditions). Predicted correlations were not found (a) between withdrawal symptoms and urge to consume caffeine; (b) between dietary restraint and MCQ scores; or (c) between dietary restraint and amount of daily caffeine consumption. Results were likely affected by limited power from the small sample size.
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