2017
Frontostriatal and Dopamine Markers of Individual Differences in Reinforcement Learning: A Multi-modal Investigation
Kaiser R, Treadway M, Wooten D, Kumar P, Goer F, Murray L, Beltzer M, Pechtel P, Whitton A, Cohen A, Alpert N, Fakhri G, Normandin M, Pizzagalli D. Frontostriatal and Dopamine Markers of Individual Differences in Reinforcement Learning: A Multi-modal Investigation. Cerebral Cortex 2017, 28: 4281-4290. PMID: 29121332, PMCID: PMC6454484, DOI: 10.1093/cercor/bhx281.Peer-Reviewed Original ResearchConceptsDA transporterRL behaviourVentral striatumDA clearanceFunctional connectivityBinding potentialLevel of neurocognitive functioningIncreased intrinsic functional connectivityMulti-modal neuroimaging studiesResting-state functional connectivityPhasic DA activityStriatal DA transporterIntrinsic functional connectivityReinforcement learning behaviorMulti-modal investigationsFrontostriatal circuitsFrontostriatal connectivityFrontostriatal regionsOrbitofrontal cortexDA activityNeuroimaging studiesOrbitofrontal regionsDopamine markersNeurocognitive functionDopamine
2012
Positron Emission Tomography Shows Elevated Cannabinoid CB 1 Receptor Binding in Men with Alcohol Dependence
Neumeister A, Normandin MD, Murrough JW, Henry S, Bailey CR, Luckenbaugh DA, Tuit K, Zheng M, Galatzer‐Levy I, Sinha R, Carson RE, Potenza MN, Huang Y. Positron Emission Tomography Shows Elevated Cannabinoid CB 1 Receptor Binding in Men with Alcohol Dependence. Alcohol Clinical And Experimental Research 2012, 36: 2104-2109. PMID: 22551199, PMCID: PMC3418442, DOI: 10.1111/j.1530-0277.2012.01815.x.Peer-Reviewed Original ResearchConceptsPositron emission tomographyAlcohol dependenceBrain CBTime-activity curvesEmission tomographyBody mass indexHealthy control menRecent therapeutic developmentsMedication-free participantsPosterior cingulate cortexCurrent study designPreclinical evidenceSmoking statusMass indexControl menReceptor densityLast drinkECB functionCingulate cortexBrain regionsSelective radiotracerEndogenous CBOrbitofrontal cortexPeripheral measuresStudy design