Cited by 191Neural and Behavioral Psychology StudiesEating Disorders and BehaviorsNeurotransmitter Receptor Influence on Behavior

fMRI reactivity on a delay discounting task predicts weight gain in obese women

Kishinevsky, Felix I., Cox, James E., Murdaugh, Donna L., Stoeckel, Luke E., Cook, Edwin W., Weller, Rosalyn E.·2012·Appetite

Abstract

Obesity can be accompanied by abnormalities in executive function and related neural circuitry. A useful task for studying executive function is delay discounting (DD), in which an individual chooses between sooner and delayed, but greater, amounts of money or other commodities. We previously found that obese compared to normal-weight women made more immediate choices on a monetary DD task, or had greater delay discounting. In the present study, we performed functional magnetic resonance imaging (fMRI) of obese women during performance of a DD of money task. Confirming the results of previous studies, we found that more difficult compared to easy DD trials resulted in activation in putative executive function areas of the brain, the middle and inferior frontal gyri, and medial prefrontal cortex. Most interestingly, we also found that less activation in executive function areas such as the inferior, middle, and superior frontal gyri on difficult vs. easy DD trials predicted a greater rate of weight gain over the subsequent 1.3-2.9 years. These results suggest that suboptimal functioning of executive function areas such as prefrontal cortex contributes to the progression of obesity.

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Crossref · 10.1016/j.appet.2011.11.029

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  • A recent fMRI study of executive function in obese women found regional differences in brain activation during delayed discounting tasks that predicted future weight gain.

    “A recent functional magnetic resonance imaging (fMRI) study of executive function in obese women, for example, identified regional differences in brain activation during delayed discounting tasks that were predictive of future weight gain (102).”

    From Obesity and addiction: Neurobiological overlaps (2013) · cites this paper as [102]

  • Other studies found significant decreases in prefrontal cortex blood flow associated with higher weight in healthy controls, and an fMRI study reported impaired executive function in obese women.

    “Other studies found significant decreases in blood flow in the prefrontal cortex associated with higher weight in healthy control subjects (84,85), and a functional magnetic resonance imaging study reported impaired executive function in obese women (86).”

    From The Addictive Dimensionality of Obesity (2013) · cites this paper as [86]

  • Less activation in executive function brain regions during a delay discounting task predicts greater weight gain 1-3 years later in obese women.

    “less activation in executive function brain regions during a delay discounting task predicted greater weight gain 1–3 years later in obese women.169”

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Authors
Kishinevsky, F. I., Cox, J. E., Murdaugh, D. L., Stoeckel, L. E., Cook, E. W., & Weller, R. E.
Affiliations
University of Alabama at Birmingham (US)
Corresponding author
Weller, Rosalyn E.
Venue
Appetite
Publisher
Elsevier BV
Published
2012-04
Volume
58
Issue
2
Pages
582-592
ISSN
0195-6663 (ISSN-L)
OpenAlex
W2071034945
Cited by
191
References
110
Citations by year
2026: 2 · 2025: 5 · 2024: 9 · 2023: 13 · 2022: 9 · 2021: 18 · 2020: 11 · 2019: 19 · 2018: 21 · 2017: 13 · 2016: 14 · 2015: 19 · 2014: 14 · 2013: 16 · 2012: 8
FWCI
6.17
Type
journal article
Language
en
Open access
closed
Locations
  • Appetite (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Social Sciences › Psychology › Clinical Psychology › Eating Disorders and Behaviors
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
delay discounting, obesity, weight gain, executive function, prefrontal cortex, medial prefrontal cortex, neural reactivity, monetary choice, women
MeSH terms
Adult, Behavior, Brain, Choice Behavior, Female, Humans, Magnetic Resonance Imaging, Middle Aged, Obesity, Reward, Task Performance and Analysis, Weight Gain, Prefrontal Cortex

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