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Dietary restraint and US devaluation predict evaluative learning
journal contribution
posted on 2016-01-22, 11:42 authored by Jeffrey M. Brunstrom, Suzanne Higgs, Gemma WitcombGemma WitcombPrevious research has indicated that flavor–flavor learning is impaired in restrained eaters. In Experiment 1 we sought to extend this finding using a larger sample and a more comprehensive assessment of dietary behavior. Participants (N =90, including 30 current dieters) sampled three novel flavors (CSs), each on 10 separate occasions, in a randomized order. Each flavor was paired with chocolate (US) either 10%, 50%, or 90% of the time. We then assessed liking for the three CSs and asked participants to complete the DEBQ-restraint and TFEQdisinhibition
sub-scales. After these CS-US parings, restrained eaters tended to prefer the 10% paired flavor whereas unrestrained eaters
tended to prefer the 90% paired flavor. Differential CS liking was not evident in dieters and it was not predicted by disinhibition. Using a similar methodology, in Experiment 2 (N =76) we assessed evaluative change following picture-sweet pairings. Relative to the other CSs, the
restrained eaters reported a greater increase in their liking for the 10% paired CS and the unrestrained eaters reported a greater increase in their liking for the 90% paired CS. We also discovered that evaluative change is related to the level of US devaluation that takes place during
conditioning. Evidence that a sweet US can bring about a decrease in liking has not been reported previously. One interpretation is that negative beliefs and attitudes can contaminate the representation of the US during training.
Funding
This research was funded by the Biotechnology and Biological Sciences Research Council (BBSRC); grant reference: D15238.
History
School
- Sport, Exercise and Health Sciences
Published in
PHYSIOLOGY & BEHAVIORVolume
85Issue
5Pages
524 - 535 (12)Citation
BRUNSTROM, J.M., HIGGS, S. and MITCHELL, G.L., 2005. Dietary restraint and US devaluation predict evaluative learning. Physiology and Behavior, 85(5), pp. 524-535.Publisher
© ElsevierVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2005Notes
This paper is in closed access.ISSN
0031-9384Publisher version
Language
- en