Cited by 441Regulation of Appetite and ObesityEating Disorders and BehaviorsNutrition, Health and Food Behavior

Neuroimaging and obesity: current knowledge and future directions

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Carnell, S., Gibson, C., Benson, L., Ochner, C. N., Geliebter, A.·2012·Obesity Reviews

Abstract

Summary: Neuroimaging is becoming increasingly common in obesity research as investigators try to understand the neurological underpinnings of appetite and body weight in humans. Positron emission tomography (PET), functional magnetic resonance imaging (fMRI) and magnetic resonance imaging (MRI) studies examining responses to food intake and food cues, dopamine function and brain volume in lean vs. obese individuals are now beginning to coalesce in identifying irregularities in a range of regions implicated in reward (e.g. striatum, orbitofrontal cortex, insula), emotion and memory (e.g. amygdala, hippocampus), homeostatic regulation of intake (e.g. hypothalamus), sensory and motor processing (e.g. insula, precentral gyrus), and cognitive control and attention (e.g. prefrontal cortex, cingulate). Studies of weight change in children and adolescents, and those at high genetic risk for obesity, promise to illuminate causal processes. Studies examining specific eating behaviours (e.g. external eating, emotional eating, dietary restraint) are teaching us about the distinct neural networks that drive components of appetite, and contribute to the phenotype of body weight. Finally, innovative investigations of appetite‐related hormones, including studies of abnormalities (e.g. leptin deficiency) and interventions (e.g. leptin replacement, bariatric surgery), are shedding light on the interactive relationship between gut and brain. The dynamic distributed vulnerability model of eating behaviour in obesity that we propose has scientific and practical implications.

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Crossref · 10.1111/j.1467-789x.2011.00927.x

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  • Obesity, similar to drug addiction, appears to result from imbalanced processing in a range of regions implicated in reward/saliency, motivation/drive, emotion/stress reactivity, memory/conditioning, executive function/self-control, and interoception, in addition to possible imbalances in homeostatic regulation of food intake.

    “The picture that is emerging is that obesity, similar to drug addiction (226), appears to result from imbalanced processing in a range of regions implicated in reward/saliency, motivation/drive, emotion/stress reactivity, memory/conditioning, executive function/self-control and interoception, in addition to possible imbalances in the homeostatic regulation of food intake.”

    From Obesity and addiction: Neurobiological overlaps (2013) · cites this paper as [226]

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Research works printed but not linked: 2

  1. [55]Herman CP Polivy J Restrained Eating W.B. Saunders Philadelphia 1980
  2. [70]Stice E Spoor S Bohon C Veldhuizen M Small D Relation of reward from food intake and anticipated food intake to obesity J Abnorm Psychol 2008 117 924 935 19025237 PMC2681092

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Authors
Carnell, S., Gibson, C., Benson, L., Ochner, C. N., & Geliebter, A.
Affiliations
St. Luke's-Roosevelt Hospital Center (US)
Corresponding author
Carnell, S.
Venue
Obesity Reviews
Publisher
Wiley
Published
2011-09-08
Volume
13
Issue
1
Pages
43-56
ISSN
  • 1467-7881 (ISSN-L)
  • 1467-789X
OpenAlex
W1930353164
Cited by
441
References
73
Citations by year
2026: 8 · 2025: 9 · 2024: 30 · 2023: 22 · 2022: 24 · 2021: 24 · 2020: 33 · 2019: 22 · 2018: 35 · 2017: 40 · 2016: 38 · 2015: 42 · 2014: 43 · 2013: 44 · 2012: 24
FWCI
3.80
Type
journal article
Language
en
Open access
Locations
  • Obesity Reviews (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01DK074046S2, R03DK068603, R01DK074046, K99DK088360, R01DK080153, P30DK026687)
  • National Center for Research Resources (KL2RR024157)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Social Sciences › Psychology › Clinical Psychology › Eating Disorders and Behaviors
  • Health Sciences › Nursing › Nutrition and Dietetics › Nutrition, Health and Food Behavior
Keywords
obesity, food reward, dopamine, brain volume, food cues, hypothalamus, eating behaviour, emotional eating, dietary restraint, leptin deficiency, leptin replacement, bariatric surgery, gut-brain axis, children and adolescents, body weight regulation
MeSH terms
Appetite, Brain, Brain Mapping, Fasting, Humans, Hunger, Magnetic Resonance Imaging, Obesity, Positron-Emission Tomography

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