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  Stopping at the sight of food: How gender and obesity impact on response inhibition

Mühlberg, C., Mathar, D., Villringer, A., Horstmann, A., & Neumann, J. (2016). Stopping at the sight of food: How gender and obesity impact on response inhibition. Appetite, 107, 663-676. doi:10.1016/j.appet.2016.08.121.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-4C0D-E Version Permalink: http://hdl.handle.net/21.11116/0000-0003-1D7F-0
Genre: Journal Article

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 Creators:
Mühlberg, Christoph1, 2, Author              
Mathar, David1, 2, Author              
Villringer, Arno1, 2, 3, 4, Author              
Horstmann, Annette1, 2, Author              
Neumann, Jane1, 2, 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, ou_634549              
3Clinic for Cognitive Neurology, University of Leipzig, Germany, ou_persistent22              
4Berlin School of Mind and Brain, Humboldt University Berlin, Germany, ou_persistent22              

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Free keywords: Response inhibition; Stop signal task; Obesity; Gender; Impulsivity
 Abstract: Recent research indicates that reduced inhibitory control is associated with higher body mass index (BMI), higher food craving and increased food intake. However, experimental evidence for the relationship between response inhibition and weight status is inconsistent and to date has been investigated predominantly in women. In the current study, 56 participants (26 obese, 30 lean; 27 female, 29 male) performed a Food Picture Rating Task followed by a Stop Signal Task where pictures of palatable high or low caloric food or non-food items were presented prior to the Go signal. We further assessed participants’ self-reported eating behavior and trait impulsivity as potential factors influencing response inhibition, in particular within the food context. Independent of BMI, women showed significantly higher liking for low caloric food items than men. This was accompanied by shorter Stop Signal Reaction Times (SSRT) after high compared to low caloric food pictures for women, and shorter SSRT in women compared to men for high caloric food. No influence of gender on SSRT was observable outside of the food context. While SSRTs did not differ between obese and lean participants across the three picture categories, we found a moderating effect of trait impulsivity on the relationship between BMI and SSRT, specifically in the high caloric food context. Higher BMI was predictive of longer SSRT only for participants with low to normal trait impulsivity, pointing at a complex interplay between response inhibition, general impulsivity and weight status. Our results support the notion that individuals with obesity do not suffer from diminished response inhibition capacity per se. Rather, the ability to withhold a response depends on context and social norms, and strongly interacts with factors like gender and trait impulsivity.

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Language(s): eng - English
 Dates: 2016-08-162016-05-152016-08-302016-08-312016-12-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.appet.2016.08.121
PMID: 27592420
Other: Epub 2016
 Degree: -

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Title: Appetite
Source Genre: Journal
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Publ. Info: London : Academic Press
Pages: - Volume / Issue: 107 Sequence Number: - Start / End Page: 663 - 676 Identifier: ISSN: 0195-6663
CoNE: https://pure.mpg.de/cone/journals/resource/954922648093