Cited by 401Neurotransmitter Receptor Influence on BehaviorEating Disorders and BehaviorsRegulation of Appetite and Obesity

Weight Gain Is Associated with Reduced Striatal Response to Palatable Food

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Stice, Eric, Yokum, Sonja, Blum, Kenneth, Bohon, Cara·2010·The Journal of Neuroscience

Abstract

Consistent with the theory that individuals with hypofunctioning reward circuitry overeat to compensate for a reward deficit, obese versus lean humans have fewer striatal D2 receptors and show less striatal response to palatable food intake. Low striatal response to food intake predicts future weight gain in those at genetic risk for reduced signaling of dopamine-based reward circuitry. Yet animal studies indicate that intake of palatable food results in downregulation of D2 receptors, reduced D2 sensitivity, and decreased reward sensitivity, implying that overeating may contribute to reduced striatal responsivity. Thus, we tested whether overeating leads to reduced striatal responsivity to palatable food intake in humans using repeated-measures functional magnetic resonance imaging. Results indicated that women who gained weight over a 6 month period showed a reduction in striatal response to palatable food consumption relative to weight-stable women. Collectively, results suggest that low sensitivity of reward circuitry increases risk for overeating and that this overeating may further attenuate responsivity of reward circuitry in a feedforward process.

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Authors
Stice, E., Yokum, S., Blum, K., & Bohon, C.
Affiliations
  • The University of Texas at Austin (US)
  • University of Florida (US)
  • University of California, Los Angeles (US)
Venue
The Journal of Neuroscience
Published
2010-09-29
Volume
30
Issue
39
Pages
13105-13109
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1967830372
Cited by
401
References
35
Citations by year
2026: 7 · 2025: 20 · 2024: 9 · 2023: 13 · 2022: 17 · 2021: 25 · 2020: 22 · 2019: 22 · 2018: 30 · 2017: 33 · 2016: 27 · 2015: 37 · 2014: 35 · 2013: 31 · 2012: 39
FWCI
13.42
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute of Mental Health (R1MH64560A, R01MH064560)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK080760, R01DK080760)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Social Sciences › Psychology › Clinical Psychology › Eating Disorders and Behaviors
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
Keywords
weight gain, striatum, dopamine D2 receptor, reward systems, palatable food, overeating, obesity, dopamine sensitivity, food reward, women
MeSH terms
Appetite Regulation, Appetitive Behavior, Brain Mapping, Corpus Striatum, Female, Humans, Hyperphagia, Magnetic Resonance Imaging, Neural Inhibition, Neuropsychological Tests, Obesity, Prospective Studies, Reward, Weight Gain, Young Adult

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