2014
In the Blink of an Eye: Relating Positive-Feedback Sensitivity to Striatal Dopamine D2-Like Receptors through Blink Rate
Groman SM, James AS, Seu E, Tran S, Clark TA, Harpster SN, Crawford M, Burtner JL, Feiler K, Roth RH, Elsworth JD, London ED, Jentsch JD. In the Blink of an Eye: Relating Positive-Feedback Sensitivity to Striatal Dopamine D2-Like Receptors through Blink Rate. Journal Of Neuroscience 2014, 34: 14443-14454. PMID: 25339755, PMCID: PMC4205561, DOI: 10.1523/jneurosci.3037-14.2014.Peer-Reviewed Original ResearchConceptsDopamine D2-like receptorsD2-like receptorsPositron emission tomographyStriatal dopamine D2-like receptorsPositive feedback sensitivityAdult male vervet monkeysDopamine D2 receptorsD2-like receptor availabilityDopaminergic transmissionPharmacological assessmentD2 receptorsMale vervet monkeysReceptor numberReceptor availabilityEmission tomographyBlink rateReceptorsSimple behavioral measurePET measurementsHuman brainReversal-learning performanceVervet monkeysBehavioral measuresHuman impulsivityBehavioral addictions
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