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
2018
Food Intake Recruits Orosensory and Post-ingestive Dopaminergic Circuits to Affect Eating Desire in Humans
Thanarajah SE, Backes H, DiFeliceantonio AG, Albus K, Cremer AL, Hanssen R, Lippert RN, Cornely OA, Small DM, Brüning JC, Tittgemeyer M. Food Intake Recruits Orosensory and Post-ingestive Dopaminergic Circuits to Affect Eating Desire in Humans. Cell Metabolism 2018, 29: 695-706.e4. PMID: 30595479, DOI: 10.1016/j.cmet.2018.12.006.Peer-Reviewed Original ResearchConceptsDopaminergic circuitsHigher cognitive centersSegregated brain regionsPeripheral physiological signalsPalatable food intakeReward valueDopamine releaseCognitive centersSubjective desireBrain regionsBrain areasUnderlying reinforcementFood intakeDorsal striatumRole of brainPhysiological signalsFood selection behaviorIntegrative pathwaysFMRIDesirePET methodBrainHumansIntakeSelection behavior
2008
Modulation of the spatial attention network by incentives in healthy aging and mild cognitive impairment
Bagurdes LA, Mesulam MM, Gitelman DR, Weintraub S, Small DM. Modulation of the spatial attention network by incentives in healthy aging and mild cognitive impairment. Neuropsychologia 2008, 46: 2943-2948. PMID: 18602410, DOI: 10.1016/j.neuropsychologia.2008.06.005.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAgingAnalysis of VarianceAttentionCase-Control StudiesCerebral CortexCognition DisordersDementiaDiscrimination, PsychologicalHumansLimbic SystemMagnetic Resonance ImagingMatched-Pair AnalysisMiddle AgedMotivationReaction TimeReference ValuesRewardSeverity of Illness IndexSpace PerceptionConceptsSpatial attentionSpatial attention networkAttentional shiftsMild cognitive impairmentAttention networkHealthy agingOrbitofrontal cortexCovert attention taskSelective spatial attentionCognitive impairmentUnderlying neural circuitryAD-related declineAttention taskSelective attentionEmotional contentOFC activationPCC activationSpatial cuesSecondary reinforcerInfluence of incentivesPosterior cingulateNeural circuitryNovel eventsCurrent experimentsBehavioral effects
2005
Taste and Olfactory Intensity Perception Changes Following Left Insular Stroke
Mak YE, Simmons KB, Gitelman DR, Small DM. Taste and Olfactory Intensity Perception Changes Following Left Insular Stroke. Behavioral Neuroscience 2005, 119: 1693-1700. PMID: 16420174, DOI: 10.1037/0735-7044.119.6.1693.Peer-Reviewed Original Research