2022
Functional Connectivity of the Nucleus Accumbens and Changes in Appetite in Patients With Depression
Kroemer NB, Opel N, Teckentrup V, Li M, Grotegerd D, Meinert S, Lemke H, Kircher T, Nenadić I, Krug A, Jansen A, Sommer J, Steinsträter O, Small DM, Dannlowski U, Walter M. Functional Connectivity of the Nucleus Accumbens and Changes in Appetite in Patients With Depression. JAMA Psychiatry 2022, 79: 993-1003. PMID: 36001327, PMCID: PMC9403857, DOI: 10.1001/jamapsychiatry.2022.2464.Peer-Reviewed Original ResearchConceptsMajor depressive disorderNAcc functional connectivityFunctional connectivityBody weightNucleus accumbensTreatment of MDDResting-state functional connectivityCase-control studySymptom-specific associationsHealthy control participantsIdentification of biomarkersClassification of diagnosesCohort studyMost patientsMean ageDepressive episodeDepressive disorderReduced appetiteMagnetic resonance imaging dataMAIN OUTCOMESubstantial burdenDepressive symptomsPatientsVentromedial prefrontal cortexReward circuitChronic pain precedes disrupted eating behavior in low-back pain patients
Lin Y, De Araujo I, Stanley G, Small D, Geha P. Chronic pain precedes disrupted eating behavior in low-back pain patients. PLOS ONE 2022, 17: e0263527. PMID: 35143525, PMCID: PMC8830732, DOI: 10.1371/journal.pone.0263527.Peer-Reviewed Original ResearchConceptsLow back pain patientsChronic low back pain patientsFat-rich foodsPain patientsChronic painCLBP patientsSBP patientsNucleus accumbensBack pain patientsChronic pain patientsHealthy control subjectsNucleus accumbens volumePain chronificationFat ingestionHedonic feedingPatient populationAccumbens volumeControl subjectsLimbic brainPainEarly coursePatientsBehavioral alterationsHedonic perceptionNeurological standpoint
2015
Greater perceived ability to form vivid mental images in individuals with high compared to low BMI
Patel BP, Aschenbrenner K, Shamah D, Small DM. Greater perceived ability to form vivid mental images in individuals with high compared to low BMI. Appetite 2015, 91: 185-189. PMID: 25865661, DOI: 10.1016/j.appet.2015.04.005.Peer-Reviewed Original ResearchConceptsImagery abilityMental imagery abilityFrequent food cravingsFood cue reactivityVivid mental imagesHierarchical regression analysisMental imageryOlfactory imageryCue reactivityVisual objectsMental imagesFood cravingsPositive associationSecond experimentSignificant positive associationBest predictorParticipantsIndividualsAbilityImageryCravingObese individualsMeasuresRegression analysisCorrelation analysis
2010
Taste representation in the human insula
Small DM. Taste representation in the human insula. Brain Structure And Function 2010, 214: 551-561. PMID: 20512366, DOI: 10.1007/s00429-010-0266-9.Peer-Reviewed Original ResearchConceptsInsular cortexTaste cortexTaste representationsUnimodal sensory corticesPrimary taste cortexHuman insular cortexAnterior insular cortexHuman insulaInterspecies differencesSensory cortexSense of tasteCortexFeeding behaviorSensory regionsSignificant interspecies differencesCritical relayPrimary aimMonkeysHumans
2008
Relation of Reward From Food Intake and Anticipated Food Intake to Obesity: A Functional Magnetic Resonance Imaging Study
Stice E, Spoor S, Bohon C, Veldhuizen MG, Small DM. Relation of Reward From Food Intake and Anticipated Food Intake to Obesity: A Functional Magnetic Resonance Imaging Study. Journal Of Psychopathology And Clinical Science 2008, 117: 924-935. PMID: 19025237, PMCID: PMC2681092, DOI: 10.1037/a0013600.Peer-Reviewed Original ResearchConceptsFunctional magnetic resonance imagingAdolescent girlsGreater activationFunctional magnetic resonance imaging studySomatosensory regionsRelation of rewardGustatory cortexDopamine receptor availabilityMagnetic resonance imaging studyResonance imaging studyChocolate milkshakeTasteless solutionConsequent weight gainFood intakeBrain regionsGreater rewardsHedonic aspectsDecreased activationWeak activationRewardReceptor availabilityMilkshakeGirlsImaging studiesMagnetic resonance imaging
2005
Differential Neural Responses Evoked by Orthonasal versus Retronasal Odorant Perception in Humans
Small DM, Gerber JC, Mak YE, Hummel T. Differential Neural Responses Evoked by Orthonasal versus Retronasal Odorant Perception in Humans. Neuron 2005, 47: 593-605. PMID: 16102541, DOI: 10.1016/j.neuron.2005.07.022.Peer-Reviewed Original ResearchConceptsOrbitofrontal cortexCaudolateral orbitofrontal cortexRoute of deliveryInsula/operculumMedial orbitofrontal cortexPerigenual cingulateOral cavityCentral sulcusDifferential neural responsesRetronasal olfactionRetronasal routeBrain responsesNeural responsesNeural recruitmentDifferential activationPreferential activityCortexOdorant perceptionOrthonasalRetronasalDifferential neural recruitmentDeliveryResponseThalamusHippocampus