Featured Publications
Orthonasal versus retronasal glomerular activity in rat olfactory bulb by fMRI
Sanganahalli BG, Baker KL, Thompson GJ, Herman P, Shepherd GM, Verhagen JV, Hyder F. Orthonasal versus retronasal glomerular activity in rat olfactory bulb by fMRI. NeuroImage 2020, 212: 116664. PMID: 32087375, PMCID: PMC9362851, DOI: 10.1016/j.neuroimage.2020.116664.Peer-Reviewed Original ResearchConceptsRat olfactory bulbOlfactory bulbWhole olfactory bulbOlfactory receptor neuronsFunctional MRINasal cavityRetronasal stimuliGlomerular sheetDorsal-medial regionsDelivery routeRetronasal stimulationSimilar response amplitudesGlomerular activityFMRI activation mapsSame odorReceptor neuronsDorsal regionNeural responsesOdor representationsLateral regionsSame odorantOrthonasalUnderlie differencesResponse amplitudeResponse patternsFus1 KO Mouse As a Model of Oxidative Stress-Mediated Sporadic Alzheimer's Disease: Circadian Disruption and Long-Term Spatial and Olfactory Memory Impairments
Coronas-Samano G, Baker KL, Tan WJ, Ivanova AV, Verhagen JV. Fus1 KO Mouse As a Model of Oxidative Stress-Mediated Sporadic Alzheimer's Disease: Circadian Disruption and Long-Term Spatial and Olfactory Memory Impairments. Frontiers In Aging Neuroscience 2016, 8: 268. PMID: 27895577, PMCID: PMC5108791, DOI: 10.3389/fnagi.2016.00268.Peer-Reviewed Original ResearchSporadic Alzheimer's diseaseKO miceOxidative stressAlzheimer's diseaseYounger ageWT adult miceOlfactory memory impairmentsEffective therapeutic treatmentMore sleep timeClear deficitNeurobehavioral deficitsRisk factorsAD hallmarksMetabolic dysregulationOlfactory bulbAdult miceAnimal modelsSleep timeEarly interventionMemory impairmentAD etiologyPharmacological targetsTherapeutic treatmentCircadian disruptionMicePerception of Odors Linked to Precise Timing in the Olfactory System
Rebello MR, McTavish TS, Willhite DC, Short SM, Shepherd GM, Verhagen JV. Perception of Odors Linked to Precise Timing in the Olfactory System. PLOS Biology 2014, 12: e1002021. PMID: 25514030, PMCID: PMC4267717, DOI: 10.1371/journal.pbio.1002021.Peer-Reviewed Original Research
2024
Behavioral discrimination and olfactory bulb encoding of odor plume intermittency
Gumaste A, Baker K, Izydorczak M, True A, Vasan G, Crimaldi J, Verhagen J. Behavioral discrimination and olfactory bulb encoding of odor plume intermittency. ELife 2024, 13: e85303. PMID: 38441541, PMCID: PMC11001298, DOI: 10.7554/elife.85303.Peer-Reviewed Original ResearchDiscrimination taskOdor-guided navigationOdor sourceTrained miceNeural representationNeural responsesTask performanceBehavioral outcomesBehavioral discriminationOlfactory bulbBehavioral parametersOdor landscapeOdorTaskOlfactory searchSniffingCuesNavigational cuesMiceBulbEncodingAnimalsDiscriminationAirborne plumeNavigation
2023
Spatiotemporal features of neurovascular (un)coupling with stimulus-induced activity and hypercapnia challenge in cerebral cortex and olfactory bulb
James S, Sanggaard S, Akif A, Mishra S, Sanganahalli B, Blumenfeld H, Verhagen J, Hyder F, Herman P. Spatiotemporal features of neurovascular (un)coupling with stimulus-induced activity and hypercapnia challenge in cerebral cortex and olfactory bulb. Cerebrovascular And Brain Metabolism Reviews 2023, 43: 1891-1904. PMID: 37340791, PMCID: PMC10676132, DOI: 10.1177/0271678x231183887.Peer-Reviewed Original ResearchConceptsVasodilatory responseCerebral cortexNeurovascular couplingOlfactory bulbNeuronal activityBrief sensory stimuliRegional neurovascular couplingStimulus-induced activityHypercapnia challengeVascular toneNeuronal deactivationHemodynamic responseNeuronal excitabilityNeuronal responsesCalcium transientsBrain functionHemodynamic signalsSensory stimuliVasodilationHypercapniaCortexMiceCareful appraisalStimuliMetabolic wasteOdor encoding by signals in the olfactory bulb
Verhagen J, Baker K, Vasan G, Pieribone V, Rolls E. Odor encoding by signals in the olfactory bulb. Journal Of Neurophysiology 2023, 129: 431-444. PMID: 36598147, PMCID: PMC9925169, DOI: 10.1152/jn.00449.2022.Peer-Reviewed Original ResearchConceptsOlfactory bulbGlomerular responseMouse dorsalPresynaptic inputsLateral olfactory bulbSet of odorsGlomeruliOlfactory systemOdor identityOdor informationSniff onsetResponse latencyBroad tuningBulbStimulus identityLittle informationPopulationResponseEarly stagesTemporal encodingIndependent responses
2015
Direct Behavioral and Neurophysiological Evidence for Retronasal Olfaction in Mice
Rebello MR, Kandukuru P, Verhagen JV. Direct Behavioral and Neurophysiological Evidence for Retronasal Olfaction in Mice. PLOS ONE 2015, 10: e0117218. PMID: 25675095, PMCID: PMC4326425, DOI: 10.1371/journal.pone.0117218.Peer-Reviewed Original ResearchConceptsOlfactory bulbMouse's abilityAdditional animal modelsHead-fixed miceConcentration-dependent mannerAnesthetized ratsAwake miceRetronasal odorantsRetronasal odorCalcium responseAnimal modelsTransgenic miceMiceRatsRetronasal olfactionGo behavioral taskRetronasal smellLick spoutFood flavor perceptionNeurophysiological evidenceBehavioral tasksHuman flavor perceptionFood selectionOlfactionBulbectomy