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  Appetitive pavlovian-to-instrumental transfer in participants with normal-weight and obesity

Meemken, M.-T., & Horstmann, A. (2019). Appetitive pavlovian-to-instrumental transfer in participants with normal-weight and obesity. Nutrients, 11(5): 1037. doi:10.3390/nu11051037.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-960A-9 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-B4AD-F
Genre: Journal Article

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 Creators:
Meemken, Marie-Theres1, 2, Author              
Horstmann, Annette1, 2, 3, Author              
Affiliations:
1Integrated Research and Treatment Center Adiposity Diseases, University of Leipzig, Germany, ou_persistent22              
2Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, Leipzig, DE, ou_634549              
3Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Finland, ou_persistent22              

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Free keywords: Pavlovian-to-Instrumental Transfer; PIT; Obesity; Food reward; Human
 Abstract: Altered eating behavior due to modern, food-enriched environments has a share in the recent obesity upsurge, though the exact mechanisms remain unclear. This study aims to assess whether higher weight or weight gain are related to stronger effects of external cues on motivation-driven behavior. 51 people with and without obesity completed an appetitive Pavlovian-to-Instrumental Transfer (PIT) paradigm. During training, button presses as well as presentation of fractal images resulted in three palatable and one neutral taste outcome. In the subsequent test phase, outcome-specific and general behavioral bias of the positively associated fractal images on deliberate button press were tested under extinction. While all participants showed signs of specific transfer, general transfer was not elicited. Contrary to our expectations, there was no main effect of weight group on PIT magnitude. Participants with obesity exhibited higher scores in the Three-Factor Eating Questionnaire Disinhibition scale, replicating a very robust effect from previous literature. Individual Restraint scores were able to predict body-mass index (BMI) change after a three-year period. Our data indicate that PIT is an important player in how our environment influences the initiation of food intake, but its effects alone cannot explain differences in—or future development of—individual weight

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Language(s): eng - English
 Dates: 2019-05-022019-05-082019-05-09
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.3390/nu11051037
PMID: 31075858
PII: E1037
 Degree: -

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Project name : -
Grant ID : 01EO1501
Funding program : -
Funding organization : German Federal Ministry for Education and Research (BMBF)
Project name : Obesity Mechanisms / SFB 1052
Grant ID : -
Funding program : -
Funding organization : Deutsche Forschungsgemeinschaft (DFG)
Project name : -
Grant ID : -
Funding program : -
Funding organization : Universität Leipzig

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Title: Nutrients
Source Genre: Journal
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Publ. Info: Basel : MDPI
Pages: - Volume / Issue: 11 (5) Sequence Number: 1037 Start / End Page: - Identifier: ISSN: 2072-6643
CoNE: https://pure.mpg.de/cone/journals/resource/2072-6643