2021
Post-traumatic olfactory loss and brain response beyond olfactory cortex
Pellegrino R, Farruggia MC, Small DM, Veldhuizen MG. Post-traumatic olfactory loss and brain response beyond olfactory cortex. Scientific Reports 2021, 11: 4043. PMID: 33597627, PMCID: PMC7889874, DOI: 10.1038/s41598-021-83621-2.Peer-Reviewed Original ResearchConceptsPosterior cingulate cortexOlfactory impairmentOlfactory cortexFunctional anosmiaPost-traumatic olfactory lossPrimary olfactory areasWhole-brain responsesBrain responsesGray matter densityHigher-order areasOlfactory lossPiriform cortexHead traumaHealthy controlsOlfactory areasOdorless stimuliOlfactory functionMediodorsal thalamusCortical areasVentromedial prefrontal cortexCingulate cortexFrontal operculumCortexAnterior insulaPrefrontal cortex
2016
Reorganization of brain connectivity in obesity
Geha P, Cecchi G, Constable R, Abdallah C, Small DM. Reorganization of brain connectivity in obesity. Human Brain Mapping 2016, 38: 1403-1420. PMID: 27859973, PMCID: PMC6866793, DOI: 10.1002/hbm.23462.Peer-Reviewed Original ResearchConceptsGlobal brain connectivityDorsal attention networkPeripheral metabolic dysfunctionHum Brain MappSuperior parietal lobuleSomatomotor cortexMetabolic dysfunctionVentrolateral prefrontal cortexPremotor areasCaudate nucleusNeurocognitive impairmentObesityAnterior hippocampusVisual cortexBrain regionsParietal lobuleBrain functionPrefrontal cortexBrain connectivityMilkshake consumptionCortexFeeding decisionsBrain organizationInsulaHomeostatic stateMicturition Drive is Associated with Decreased Brain Response to Palatable Milkshake in the Human Anterior Insular Cortex
Gao X, Sun X, Veldhuizen M, Nakamura Y, Kroemer N, Small D. Micturition Drive is Associated with Decreased Brain Response to Palatable Milkshake in the Human Anterior Insular Cortex. Chemosensory Perception 2016, 9: 174-181. DOI: 10.1007/s12078-016-9215-1.Peer-Reviewed Original ResearchAnterior insular cortexInsular cortexInsular responsesMagnetic resonance imaging studyBrain responsesResonance imaging studyFunctional magnetic resonance imaging studyPalatable milkshakeConclusionThis findingSmall bolusImaging studiesCortexVisceral representationMilkshakePrevious reportsInteroceptive informationTime participantsResponseBolus
2014
The neural signature of satiation is associated with ghrelin response and triglyceride metabolism
Sun X, Veldhuizen MG, Wray AE, de Araujo IE, Sherwin RS, Sinha R, Small DM. The neural signature of satiation is associated with ghrelin response and triglyceride metabolism. Physiology & Behavior 2014, 136: 63-73. PMID: 24732416, PMCID: PMC4195817, DOI: 10.1016/j.physbeh.2014.04.017.Peer-Reviewed Original ResearchConceptsPalatable foodMeal terminationBrain responsesAd libitum mealPost-prandial reductionMedial orbitofrontal cortexDorsolateral prefrontal cortexGhrelin responseAcute changesFree fatty acidsPeripheral signalsTriglyceride metabolismBrain regionsBrain circuitsOrbitofrontal cortexPrefrontal cortexAmount of foodGhrelinMidbrainMilkshakeTriglyceridesCortexFatty acidsEnergy storesGreater attenuation
2013
Sensory Neuroscience: Taste Responses in Primary Olfactory Cortex
Small DM, Veldhuizen MG, Green B. Sensory Neuroscience: Taste Responses in Primary Olfactory Cortex. Current Biology 2013, 23: r157-r159. PMID: 23428327, DOI: 10.1016/j.cub.2012.12.036.Peer-Reviewed Original Research
2012
The effect of verbal context on olfactory neural responses
Bensafi M, Croy I, Phillips N, Rouby C, Sezille C, Gerber J, Small DM, Hummel T. The effect of verbal context on olfactory neural responses. Human Brain Mapping 2012, 35: 810-818. PMID: 23225581, PMCID: PMC6869804, DOI: 10.1002/hbm.22215.Peer-Reviewed Original ResearchAn fMRI Study of the Interactions Between the Attention and the Gustatory Networks
Veldhuizen MG, Gitelman DR, Small DM. An fMRI Study of the Interactions Between the Attention and the Gustatory Networks. Chemosensory Perception 2012, 5: 117-127. PMID: 25419265, PMCID: PMC4239214, DOI: 10.1007/s12078-012-9122-z.Peer-Reviewed Original ResearchAnterior cingulate cortexFrontal eye fieldCingulate cortexPosterior parietal cortexGustatory cortexEye fieldParietal operculumParietal cortexFrontal operculumAnterior insulaRight anterior insulaPsychophysiological interaction analysisCortexDynamic causal modelingCortex actsIndirect modulationFMRI studyBrain responsesInsulaGoal-directed behaviorIncoming sensory signalsConnectivity analysisSensory signalsCurrent studyAttention taskOrosensory and Homeostatic Functions of the Insular Taste Cortex
de Araujo IE, Geha P, Small DM. Orosensory and Homeostatic Functions of the Insular Taste Cortex. Chemosensory Perception 2012, 5: 64-79. PMID: 25485032, PMCID: PMC4254792, DOI: 10.1007/s12078-012-9117-9.Peer-Reviewed Original ResearchInsular cortexCortex functionTaste-responsive regionsWeight gain susceptibilityCentral taste pathwaysInsular taste cortexTaste cortexTaste pathwaysCurrent evidenceNeuronal responsesHomeostatic roleChemosensory inputIntegrative circuitsBrain circuitsHomeostatic functionsCurrent experimental evidenceCortexVisual stimulationIngestive behaviorNutritional statePotential roleInsular areasFunctional mapsSensory modalitiesSomatosensory
2011
Modality-Specific Neural Effects of Selective Attention to Taste and Odor
Veldhuizen MG, Small DM. Modality-Specific Neural Effects of Selective Attention to Taste and Odor. Chemical Senses 2011, 36: 747-760. PMID: 21685407, PMCID: PMC3175104, DOI: 10.1093/chemse/bjr043.Peer-Reviewed Original ResearchConceptsPrimary olfactory cortexPrimary taste cortexAnterior insular cortexInsular cortexOlfactory cortexTaste cortexPrimary gustatory cortexFunctional magnetic resonancePrimary olfactoryGustatory cortexModality-specific activationInsular responsesNeural effectsCortexBrain responsesMultimodal regionsTaste perceptionMagnetic resonanceGeneral effectSelective attentionActivationResponse
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 aimMonkeysHumansThe Insular Taste Cortex Contributes to Odor Quality Coding
Veldhuizen MG, Nachtigal D, Teulings L, Gitelman DR, Small DM. The Insular Taste Cortex Contributes to Odor Quality Coding. Frontiers In Human Neuroscience 2010, 4: 58. PMID: 20700500, PMCID: PMC2917218, DOI: 10.3389/fnhum.2010.00058.Peer-Reviewed Original ResearchCommon central mechanismInsular taste cortexTaste cortexCentral mechanismsFood odorsNon-food odorsOdor quality codingOlfactory cortexInsular cortexOlfactory stimulationCortexCentral pathwaysCortex contributesSweet tasteGustatory systemOlfactory stimuliInsulaStimulationDiscrete mechanismsSensationTaste qualityQuality codingOdor sweetnessPiriformSweetness ratings
2009
Neural correlates of evaluative compared with passive tasting
Bender G, Veldhuizen MG, Meltzer JA, Gitelman DR, Small DM. Neural correlates of evaluative compared with passive tasting. European Journal Of Neuroscience 2009, 30: 327-338. PMID: 19614981, PMCID: PMC2776645, DOI: 10.1111/j.1460-9568.2009.06819.x.Peer-Reviewed Original ResearchConceptsLateral orbitofrontal cortexOrbitofrontal cortexPrimary taste cortexLeft lateral orbitofrontal cortexFunctional magnetic resonanceTasteless solutionMaximal responseTaste cortexFunction of taskCortical representationGustatory informationAnterior insulaVentral regionNeural responsesPreferential connectivityAmygdalaNeural correlatesCortexInsulaNeural encodingSubjectsStimulus presenceMagnetic resonanceResponseEarly relayThe Role of the Parabrachial Nucleus in Taste Processing and Feeding
Scott TR, Small DM. The Role of the Parabrachial Nucleus in Taste Processing and Feeding. Annals Of The New York Academy Of Sciences 2009, 1170: 372-377. PMID: 19686161, DOI: 10.1111/j.1749-6632.2009.03906.x.Peer-Reviewed Original ResearchConceptsParabrachial nucleusVentral forebrainIntegration of tasteSolitary tractForebrain projectionsVisceral sensationOrbitofrontal cortexFeeding behaviorTaste processingHedonic assessmentRodentsCortexForebrainSensory informationActivity parallelPrimatesFood selectionTaste activityNTSEarly recordingsFeedingThalamusReflexSubnucleiHedonic information
2008
Flavor and the Formation of Category-Specific Processing in Olfaction
Small D. Flavor and the Formation of Category-Specific Processing in Olfaction. Chemosensory Perception 2008, 1: 136-146. DOI: 10.1007/s12078-008-9015-3.Peer-Reviewed Original ResearchCategory-specific processingOral referralAnterior cingulate cortexRolandic operculumCingulate cortexPattern of responseOrbitofrontal cortexUnimodal tasteFlavor perceptReferralBimodal cellsCortexNeural processingFlavor objectsSensory modalitiesMultiple sensory modalitiesOlfactionCellsPerception of flavorInsulaNeuronsOperculumNeural bindingResponse
2007
The Role of the Human Orbitofrontal Cortex in Taste and Flavor Processing
SMALL DM, BENDER G, VELDHUIZEN MG, RUDENGA K, NACHTIGAL D, FELSTED J. The Role of the Human Orbitofrontal Cortex in Taste and Flavor Processing. Annals Of The New York Academy Of Sciences 2007, 1121: 136-151. PMID: 17846155, DOI: 10.1196/annals.1401.002.Peer-Reviewed Original ResearchConceptsHuman orbitofrontal cortexOrbitofrontal cortexSensory inputDistinct sensory inputsMultiple sensory inputsHigher-order gustatory corticesNeural representationFlavor perceptReward valueFlavor processingAffective valueOral somatosensationFood rewardInternal statesPerceptGustatory cortexCortexOrbital cortexRetronasal olfactionProcessingPleasantnessRewardEncodingSomatosensationRepresentationTrying to Detect Taste in a Tasteless Solution: Modulation of Early Gustatory Cortex by Attention to Taste
Veldhuizen MG, Bender G, Constable RT, Small DM. Trying to Detect Taste in a Tasteless Solution: Modulation of Early Gustatory Cortex by Attention to Taste. Chemical Senses 2007, 32: 569-581. PMID: 17495173, DOI: 10.1093/chemse/bjm025.Peer-Reviewed Original Research
2006
The chemical senses
Gottfried J, Small D, Zald D. The chemical senses. 2006, 125-172. DOI: 10.1093/acprof:oso/9780198565741.003.0006.Peer-Reviewed Original Research
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
2004
Crossmodal integration – insights from the chemical senses
Small D. Crossmodal integration – insights from the chemical senses. Trends In Neurosciences 2004, 27: 120-123. PMID: 15046082, DOI: 10.1016/j.tins.2004.01.002.Peer-Reviewed Original ResearchConceptsSuperior temporal sulcusStudy of auditionMultisensory integrationNeural correlatesTemporal sulcusVisual cuesOrbitofrontal cortexAssociation cortexHuman brainCrossmodalChemical sensesCortexAuditionCuesCongruencySomatosensationSulcusSensesCorrelatesOdor detectionFacilitationUnderstandingNew studiesBrain
2003
The posterior cingulate and medial prefrontal cortex mediate the anticipatory allocation of spatial attention
Small DM, Gitelman DR, Gregory MD, Nobre AC, Parrish TB, Mesulam M. The posterior cingulate and medial prefrontal cortex mediate the anticipatory allocation of spatial attention. NeuroImage 2003, 18: 633-641. PMID: 12667840, DOI: 10.1016/s1053-8119(02)00012-5.Peer-Reviewed Original ResearchConceptsMedial prefrontal cortexCue benefitPrefrontal cortexPosterior cingulateAttention-related areasNeutral cuesCentral cuesSpatial attentionSpatial expectancyFMRI scanningIrrelevant locationsMotivational valenceGreater activationParietal cortexBrain regionsCuesPeripheral targetsReaction timeCingulateCortexDistractibilityExpectancySignificant eventsAttentionValence