2022
Imaging the fetal nonhuman primate brain with SV2A positron emission tomography (PET)
Rossano S, Toyonaga T, Berg E, Lorence I, Fowles K, Nabulsi N, Ropchan J, Li S, Ye Y, Felchner Z, Kukis D, Huang Y, Benveniste H, Tarantal AF, Groman S, Carson RE. Imaging the fetal nonhuman primate brain with SV2A positron emission tomography (PET). European Journal Of Nuclear Medicine And Molecular Imaging 2022, 49: 3679-3691. PMID: 35633376, PMCID: PMC9826644, DOI: 10.1007/s00259-022-05825-6.Peer-Reviewed Original ResearchConceptsPositron emission tomographySynaptic densityFetal brainThird trimesterEmission tomographyBrain developmentGravid rhesus monkeysPost-mortem brain tissueEarly neonatal periodNonhuman primate brainLate gestational periodSubset of subjectsPostnatal brain developmentPost-mortem samplesGestational ageNeonatal periodPregnant monkeysSynapse numberGestational periodPrimary motorPrimate brainBrain growthSubcortical regionsBrain tissueCortical regionsMicroPET evidence for a hypersensitive neuroinflammatory profile of gp120 mouse model of HIV
Young JW, Barback CV, Stolz LA, Groman SM, Vera DR, Hoh C, Kotta KK, Minassian A, Powell SB, Brody AL. MicroPET evidence for a hypersensitive neuroinflammatory profile of gp120 mouse model of HIV. Psychiatry Research Neuroimaging 2022, 321: 111445. PMID: 35101828, DOI: 10.1016/j.pscychresns.2022.111445.Peer-Reviewed Original ResearchConceptsGp120 transgenic miceWildtype miceTransgenic miceCognitive deficits persistElevated inflammatory profilesPositron emission tomography studyEmission tomography studiesElevated neuroinflammationNeuroinflammatory profileInflammatory profileInflammatory insultVentral striataHIV envelopeLipopolysaccharide treatmentHIV entryMouse modelHIVBehavioral abnormalitiesDeficits persistMiceTomography studyVivo evidenceEnvelope glycoproteinPLWHNeuroinflammation
2017
Model-Based Control in Dimensional Psychiatry
Voon V, Reiter A, Sebold M, Groman S. Model-Based Control in Dimensional Psychiatry. Biological Psychiatry 2017, 82: 391-400. PMID: 28599832, DOI: 10.1016/j.biopsych.2017.04.006.Peer-Reviewed Original Research
2016
Dopamine D3 Receptor Availability Is Associated with Inflexible Decision Making
Groman SM, Smith NJ, Petrullli JR, Massi B, Chen L, Ropchan J, Huang Y, Lee D, Morris ED, Taylor JR. Dopamine D3 Receptor Availability Is Associated with Inflexible Decision Making. Journal Of Neuroscience 2016, 36: 6732-6741. PMID: 27335404, PMCID: PMC4916249, DOI: 10.1523/jneurosci.3253-15.2016.Peer-Reviewed Original ResearchConceptsD3 receptor availabilityCorticostriatal brain regionsReversal-learning taskGoal-directed behaviorFlexible decision makingAbility of ratsReceptor availabilityFlexible adaptive behaviorDecision-making behaviorLearning rateIndividual differencesProbabilistic reinforcementReversal taskInitial learningProbabilistic discriminationReversal performanceDecision-making processCombined neuroimagingFlexible behaviorAdaptive behaviorComputational modelingReversal phaseSpatial acquisitionBrain regionsD3-preferring agonistsHypofrontality and Posterior Hyperactivity in Early Schizophrenia: Imaging and Behavior in a Preclinical Model
Kaneko G, Sanganahalli BG, Groman SM, Wang H, Coman D, Rao J, Herman P, Jiang L, Rich K, de Graaf RA, Taylor JR, Hyder F. Hypofrontality and Posterior Hyperactivity in Early Schizophrenia: Imaging and Behavior in a Preclinical Model. Biological Psychiatry 2016, 81: 503-513. PMID: 27450031, PMCID: PMC5130616, DOI: 10.1016/j.biopsych.2016.05.019.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBehavior, AnimalBiomarkersBrainDecision MakingDiffusion Tensor ImagingDisease Models, AnimalFemaleMagnetic Resonance ImagingMagnetic Resonance SpectroscopyMaleMethylazoxymethanol AcetateMultimodal ImagingPrefrontal CortexRatsRats, Sprague-DawleyReversal LearningRewardSchizophreniaSchizophrenic PsychologyConceptsMAM ratsEarly schizophreniaReversal-learning taskEarly behavioral markersResting-state functional magnetic resonanceFunctional magnetic resonanceMethylazoxymethanol acetate (MAM) rat modelFunctional brain biomarkersPerceptual problemsBehavioral markersOrbitofrontal cortexLate adolescenceFunctional connectivityRat modelEarly diagnosisThree-choiceBehavioral studiesBehavioral symptomsPosterior corpus callosumSubstance abuseProdromal patientsSubthreshold symptomsVisual cortexBrain biomarkersSaline-treated controls
2014
Dissecting impulsivity and its relationships to drug addictions
Jentsch JD, Ashenhurst JR, Cervantes MC, Groman SM, James AS, Pennington ZT. Dissecting impulsivity and its relationships to drug addictions. Annals Of The New York Academy Of Sciences 2014, 1327: 1-26. PMID: 24654857, PMCID: PMC4360991, DOI: 10.1111/nyas.12388.Peer-Reviewed Original Research
2013
Diminished neurokinin‐1 receptor availability in patients with two forms of chronic visceral pain
Jarcho JM, Feier NA, Bert A, Labus JA, Lee M, Stains J, Ebrat B, Groman SM, Tillisch K, Brody AL, London ED, Mandelkern MA, Mayer EA. Diminished neurokinin‐1 receptor availability in patients with two forms of chronic visceral pain. Pain 2013, 154: 987-996. PMID: 23582152, PMCID: PMC4294187, DOI: 10.1016/j.pain.2013.02.026.Peer-Reviewed Original ResearchConceptsInflammatory bowel diseaseIrritable bowel syndromePositron emission tomographyClinical parametersPatient populationHealthy controlsIBS patientsChronic painInjury-related chronic painChronic visceral painNK-1R signalingPeripheral substance PChronic abdominal painPotential pharmacological interventionsIBD patientsVisceral painAbdominal painCentral sensitizationBowel syndromeBowel diseaseSubstance PPharmacological interventionsBrain expressionPatientsReceptor availability
2012
Dysregulation of D2-Mediated Dopamine Transmission in Monkeys after Chronic Escalating Methamphetamine Exposure
Groman SM, Lee B, Seu E, James AS, Feiler K, Mandelkern MA, London ED, Jentsch JD. Dysregulation of D2-Mediated Dopamine Transmission in Monkeys after Chronic Escalating Methamphetamine Exposure. Journal Of Neuroscience 2012, 32: 5843-5852. PMID: 22539846, PMCID: PMC3353813, DOI: 10.1523/jneurosci.0029-12.2012.Peer-Reviewed Original ResearchMeSH Keywords3,4-Dihydroxyphenylacetic AcidAnalysis of VarianceAnimalsBehavior, AnimalBrainCentral Nervous System StimulantsChlorocebus aethiopsChoice BehaviorDiscrimination LearningDopamineDopamine Plasma Membrane Transport ProteinsDose-Response Relationship, DrugDrug Administration ScheduleFeedback, SensoryHomovanillic AcidMagnetic Resonance ImagingMaleMethamphetaminePositron-Emission TomographyReceptors, Dopamine D2Retention, PsychologyReversal LearningSynaptic TransmissionTime FactorsConceptsInhibitory control deficitsIndividual differencesInhibitory controlStimulus-outcome associationsLike receptor availabilityReversal-learning performancePositive feedback sensitivityStimulant-dependent individualsSubstance abuse behaviorsDopamine transmissionDrug-induced neuroadaptationsControl deficitsSelective impairmentDrugs of abuseDopaminergic neurochemistryEscalating-dose regimenLike receptorsMethamphetamine exposureSubstance dependenceDopamine systemBrain dopamine levelsDopamine transporter availabilityDopaminergic neurotransmissionReceptor availabilityDeficits
2007
Dopamine D2/D3 Receptors Play a Specific Role in the Reversal of a Learned Visual Discrimination in Monkeys
Lee B, Groman S, London ED, Jentsch JD. Dopamine D2/D3 Receptors Play a Specific Role in the Reversal of a Learned Visual Discrimination in Monkeys. Neuropsychopharmacology 2007, 32: 2125-2134. PMID: 17299511, DOI: 10.1038/sj.npp.1301337.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBehavior, AnimalBenzazepinesBrainChlorocebus aethiopsDiscrimination LearningDopamineDopamine AntagonistsDopamine D2 Receptor AntagonistsDose-Response Relationship, DrugMaleNeuropsychological TestsPattern Recognition, VisualPhotic StimulationRacloprideReceptors, Dopamine D1Receptors, Dopamine D2Receptors, Dopamine D3ConceptsD2/D3 receptorsReversal learningReversal sessionsVisual discriminationRetention sessionNovel discriminationD3 receptorsD1/D5 receptor antagonist SCH 23390Receptor antagonist SCH 23390Dopamine D2/D3 receptorsWisconsin General Test ApparatusD2/D3 receptor antagonist racloprideStimulus-reward contingenciesStimulus-reward associationsAntagonist SCH 23390Receptor antagonist racloprideVisual discrimination taskD2-like receptorsDopamine receptor antagonistUnique visual cuesMesocorticolimbic dopaminergic systemPhasic DA releaseNon-human primatesDopaminergic mechanismsAntagonist raclopride