2017
Integration of Sweet Taste and Metabolism Determines Carbohydrate Reward
Veldhuizen MG, Babbs RK, Patel B, Fobbs W, Kroemer NB, Garcia E, Yeomans MR, Small DM. Integration of Sweet Taste and Metabolism Determines Carbohydrate Reward. Current Biology 2017, 27: 2476-2485.e6. PMID: 28803868, PMCID: PMC5745144, DOI: 10.1016/j.cub.2017.07.018.Peer-Reviewed Original ResearchConceptsCaloric loadGreater metabolic responseNon-linear associationMetabolic responseSugar-sweetened beveragesBrain responsesLow-calorie beveragesHigh-calorie beveragesNon-nutritive sweetenersGreater brain responsePost-ingestive signalsHuman studiesSweet tasteNutrient metabolismCarbohydrate metabolismNovel mechanismBeveragesPotencyAssociationMetabolismCarbohydrate rewards
2012
Midbrain response to milkshake correlates with ad libitum milkshake intake in the absence of hunger
Nolan-Poupart S, Veldhuizen MG, Geha P, Small DM. Midbrain response to milkshake correlates with ad libitum milkshake intake in the absence of hunger. Appetite 2012, 60: 168-174. PMID: 23064394, PMCID: PMC3526000, DOI: 10.1016/j.appet.2012.09.032.Peer-Reviewed Original ResearchConceptsAbsence of hungerFunctional magnetic resonance imagingSubsequent intakeRatings of hungerPeriaqueductal gray regionMidbrain responsesMagnetic resonance imagingKey reward regionsPalatable milkshakeSignificant positive associationPalatable foodResonance imagingInsular responsesOrbitofrontal cortexNeural circuitsGreater intakeMilkshake consumptionIntakeReward regionsBrain responsesEnhanced responseMilkshakePositive associationMidbrainGray regionAcute stress potentiates brain response to milkshake as a function of body weight and chronic stress
Rudenga KJ, Sinha R, Small DM. Acute stress potentiates brain response to milkshake as a function of body weight and chronic stress. International Journal Of Obesity 2012, 37: 309-316. PMID: 22430303, PMCID: PMC3381866, DOI: 10.1038/ijo.2012.39.Peer-Reviewed Original ResearchConceptsBody mass indexFunctional magnetic resonance imagingChronic stressOrbitofrontal cortexRight amygdalaBody weightPalatable foodAcute stressBasal cortisol levelsBrain responsesAmygdala responseMagnetic resonance imagingStress-related eatingMilkshake receiptPalatable milkshakeObese womenOverweight womenMass indexRight amygdala responseOFC responsesPotentiates responsesCortisol levelsLeft amygdalaResonance imagingVentral striatum