Calorie information and dieting status modulate reward and control activation during the evaluation of food images

Autor: Emma K. PeConga, Kristina M. Rapuano, Dylan D. Wagner, Andrea L. Courtney
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Male
Calorie
Restaurants
Physiology
Social Sciences
Control Systems
Systems Science
Brain mapping
Developmental psychology
0302 clinical medicine
Medicine and Health Sciences
Psychology
030212 general & internal medicine
Craving
Brain Mapping
Multidisciplinary
medicine.diagnostic_test
Behavior change
digestive
oral
and skin physiology
Brain
Magnetic Resonance Imaging
Physiological Parameters
Physical Sciences
Engineering and Technology
Medicine
Female
medicine.symptom
Research Article
Dieting
Adult
Computer and Information Sciences
Adolescent
Imaging Techniques
Science
Prefrontal Cortex
Neuroimaging
Context (language use)
Research and Analysis Methods
03 medical and health sciences
Reward system
Food Preferences
Young Adult
medicine
Humans
Obesity
Nutrition
Behavior
Motivation
Body Weight
Food Consumption
Cognitive Psychology
Biology and Life Sciences
Correction
Control Engineering
Diet
Food
North America
Cognitive Science
Orbitofrontal cortex
Physiological Processes
Functional magnetic resonance imaging
Energy Intake
Mathematics
030217 neurology & neurosurgery
Neuroscience
Zdroj: PLoS ONE, Vol 13, Iss 11, p e0204744 (2018)
PLoS ONE
ISSN: 1932-6203
Popis: Several public health departments throughout North America have responded to the obesity epidemic by mandating that restaurants publish calories at the point of purchase—with the intention of encouraging healthier food decisions. To help determine whether accompanying calorie information successfully changes a food’s appetitive value, this study investigated the influence of calorie information on brain responses to food images. During functional magnetic resonance imaging (fMRI) scanning, dieting (N = 22) and non-dieting (N = 20) participants viewed pictures of food with and without calorie information and rated their desire to eat the food. When food images were paired with calorie information, not only did self-reported desire to eat the food decrease, but reward system activation (Neurosynth-defined from the term “food”) decreased and control system activation (the fronto-parietal [FP] control system) increased. Additionally, a parametric modulation of reward activation by food preferences was attenuated in the context of calorie information. Finally, whole brain multivariate pattern analysis (MVPA) revealed patterns of activation in a region of the reward system—the orbitofrontal cortex (OFC)—that were more similar for food images presented with and without calorie information in dieting than non-dieting participants, suggesting that dieters may spontaneously consider calorie information when viewing food. Taken together, these results suggest that calorie information may alter brain responses to food cues by simultaneously reducing reward system activation and increasing control system activation. Moreover, individuals with greater experience or stronger motivations to consider calorie information (i.e., dieters) may more naturally do so, as evidenced by a greater degree of representational similarity between food images with and without calorie information. Combining an awareness of calories with the motivation to control them may more effectively elicit diet-related behavior change.
Databáze: OpenAIRE
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