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
2009
Deficient Activity in the Neural Systems That Mediate Self-regulatory Control in Bulimia Nervosa
Marsh R, Steinglass J, Gerber A, O’Leary K, Wang Z, Murphy D, Walsh B, Peterson B. Deficient Activity in the Neural Systems That Mediate Self-regulatory Control in Bulimia Nervosa. JAMA Psychiatry 2009, 66: 51-63. PMID: 19124688, PMCID: PMC2759684, DOI: 10.1001/archgenpsychiatry.2008.504.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultBrainBulimia NervosaCaudate NucleusCorpus StriatumDiscrimination, PsychologicalDominance, CerebralFemaleFrontal LobeGyrus CinguliHumansImage Processing, Computer-AssistedImpulsive BehaviorInternal-External ControlMagnetic Resonance ImagingNerve NetOrientationOxygenPattern Recognition, VisualPrefrontal CortexPsychomotor PerformanceReference ValuesConceptsAnterior cingulate cortexBulimia nervosaHealthy controlsCingulate cortexFrontostriatal circuitsMain outcome measuresBlood oxygenation level-dependent (BOLD) responseDorsal anterior cingulate cortexAnterior cingulate cortex activityHealthy control participantsSimon Spatial Incompatibility taskTask-related activationCingulate cortex activityLevel-dependent responsesBilateral inferior frontal gyrusFunctional magnetic resonanceSelf-regulatory controlNeural systemsGeneral linear modelingInferior frontal gyrusFunctional abnormalitiesOutcome measuresCaudate nucleusSevere symptomsPatients
2006
Functional neural circuits for mental timekeeping
Stevens MC, Kiehl KA, Pearlson G, Calhoun VD. Functional neural circuits for mental timekeeping. Human Brain Mapping 2006, 28: 394-408. PMID: 16944489, PMCID: PMC6871423, DOI: 10.1002/hbm.20285.Peer-Reviewed Original ResearchConceptsTiming taskFrontostriatal networkDifferent information processing stagesFunctional magnetic resonance imaging (fMRI) dataInformation processing stagesInformation processing modelPutamen/globus pallidusBilateral anterior insulaInterval timing taskSuperior temporal gyrusHemodynamic signal changesDistinct neural circuitsNeural circuitsPerformance of tasksIndependent component analysisAnterior cingulate gyrusSupplementary motor areaAnterior insulaFrontostriatal circuitsSupramarginal gyrusNeurobiological substratesTemporal gyrusMagnetic resonance imaging dataProcessing modelFunctional connectivity
2003
Frontostriatal Abnormalities in Adolescents With Bipolar Disorder: Preliminary Observations From Functional MRI
Blumberg HP, Martin A, Kaufman J, Leung HC, Skudlarski P, Lacadie C, Fulbright RK, Gore JC, Charney DS, Krystal JH, Peterson BS. Frontostriatal Abnormalities in Adolescents With Bipolar Disorder: Preliminary Observations From Functional MRI. American Journal Of Psychiatry 2003, 160: 1345-1347. PMID: 12832254, DOI: 10.1176/appi.ajp.160.7.1345.Peer-Reviewed Original ResearchConceptsBipolar disorder groupBipolar disorderHealthy groupComparison subjectsDisorder groupNormal comparison subjectsAdult bipolar disorderHealthy comparison subjectsPresence of dysfunctionFunctional magnetic resonance imagingMagnetic resonance imagingBipolar disorder subjectsAge-related increaseEvent-related functional magnetic resonance imagingFrontostriatal abnormalitiesLeft putamenFunctional abnormalitiesPrefrontal abnormalitiesDepressive symptomsResonance imagingVentral striatumFrontostriatal circuitsDisorder subjectsFunctional MRIDevelopmental disturbances
This site is protected by hCaptcha and its Privacy Policy and Terms of Service apply