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Sonja Yokum
Researcher at Oregon Research Institute
Publications - 58
Citations - 4934
Sonja Yokum is an academic researcher from Oregon Research Institute. The author has contributed to research in topics: Orbitofrontal cortex & Overeating. The author has an hindex of 28, co-authored 54 publications receiving 4306 citations. Previous affiliations of Sonja Yokum include University of Texas at Austin.
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Journal ArticleDOI
Reward Region Responsivity Predicts Future Weight Gain and Moderating Effects of the TaqIA Allele.
TL;DR: Elevated reward activation in response to food cues predicted future body fat gain and the former interaction implies that too much or too little dopamine signaling and reward region responsivity increases risk for overeating, suggesting qualitatively distinct reward surfeit and reward deficit pathways to obesity.
Journal ArticleDOI
Caloric deprivation increases responsivity of attention and reward brain regions to intake, anticipated intake, and images of palatable foods.
TL;DR: Results confirm that self-imposed caloric deprivation increases responsivity of attention, reward, and motivation regions to food, which may explain why caloric deprivation weight loss diets typically do not produce lasting weight loss.
Journal ArticleDOI
Pilot test of a novel food response and attention training treatment for obesity: Brain imaging data suggest actions shape valuation.
TL;DR: An intervention that reduces reward and attention region response and increases inhibitory control region response to high-calorie food images might reduce overeating, and this implicit training treatment is both easy and inexpensive to deliver.
Book ChapterDOI
Dopamine-based reward circuitry responsivity, genetics, and overeating.
TL;DR: Findings from studies that have investigated the relation between dopamine functioning and food intake are reviewed and how certain genotypes and appetite-related hormones and peptides affect this relation are reviewed.
Journal ArticleDOI
Elevated Reward Region Responsivity Predicts Future Substance Use Onset But Not Overweight/Obesity Onset
TL;DR: Results show that hyper-responsivity of reward circuitry increases risk for future substance use onset, providing novel support for the reward surfeit model and imply that even a limited substance use history was associated with reduced reward region responsivity.