2020
Drinking and responses to antidrinking messages among young adults: An fMRI study
Garrison KA, DeMartini KS, Corlett PR, Worhunsky PD, Krystal JH, O'Malley SS. Drinking and responses to antidrinking messages among young adults: An fMRI study. Addiction Biology 2020, 26: e12882. PMID: 32068323, PMCID: PMC7431375, DOI: 10.1111/adb.12882.Peer-Reviewed Original ResearchConceptsDrinking cuesNeural responsesYoung adultsFunctional magnetic resonanceSelf-reported drinkingPast monthNeutral cuesDrug cuesSmoking cuesHabitual responsesReward processingFMRI studyDrinking quantityCuesDependent individualsSubstance useAlcohol useBinge drinkingNegative consequencesGreater baselinePublic health campaignsExcessive drinkingHeavy drinkingHealth campaignsDrinking
2011
Imaging human reward processing with positron emission tomography and functional magnetic resonance imaging
Urban NB, Slifstein M, Meda S, Xu X, Ayoub R, Medina O, Pearlson GD, Krystal JH, Abi-Dargham A. Imaging human reward processing with positron emission tomography and functional magnetic resonance imaging. Psychopharmacology 2011, 221: 67-77. PMID: 22052081, DOI: 10.1007/s00213-011-2543-6.Peer-Reviewed Original ResearchConceptsPositron emission tomography studyMonetary incentive delay taskDopamine releaseVentral striatumBOLD activationVoxelwise analysisFMRI BOLD activationEndogenous dopamine releaseEmission tomography studiesROI analysisMesolimbic dopamine releaseFunctional magnetic resonance imagingMagnetic resonance imagingPositron emission tomographyReward processingBOLD signal changesFunctional neuroimaging studiesPrecommissural putamenIncentive delay taskSignal changesPosterior caudateStriatal subregionsHealthy subjectsGlutamatergic signalingPercent change
2010
Individuals Family History Positive for Alcoholism Show Functional Magnetic Resonance Imaging Differences in Reward Sensitivity That Are Related to Impulsivity Factors
Andrews MM, Meda SA, Thomas AD, Potenza MN, Krystal JH, Worhunsky P, Stevens MC, O'Malley S, Book GA, Reynolds B, Pearlson GD. Individuals Family History Positive for Alcoholism Show Functional Magnetic Resonance Imaging Differences in Reward Sensitivity That Are Related to Impulsivity Factors. Biological Psychiatry 2010, 69: 675-683. PMID: 21126735, PMCID: PMC3677031, DOI: 10.1016/j.biopsych.2010.09.049.Peer-Reviewed Original ResearchConceptsMonetary incentive delay taskIncentive delay taskNAcc activationReward anticipationDelay taskFamily history-positive individualsAbnormal reward processingRegional brain activationNucleus accumbens activationFunctional magnetic resonanceReward system activitySubstance-abusing individualsReward prospectReward sensitivityNeural correlatesImpulsivity constructsSubstance abuse historyImpulsivity factorsReward processingBehavioral impulsivityAtypical activationBrain activationOutcome phaseBiological predispositionTask phases
2006
The vulnerability to alcohol and substance abuse in individuals diagnosed with schizophrenia
Krystal JH, D’Souza D, Gallinat J, Driesen N, Abi-Dargham A, Petrakis I, Heinz A, Pearlson G. The vulnerability to alcohol and substance abuse in individuals diagnosed with schizophrenia. Neurotoxicity Research 2006, 10: 235-252. PMID: 17197373, DOI: 10.1007/bf03033360.Peer-Reviewed Original ResearchConceptsSubstance abuse riskSubstance abuseSubstance abuse disordersAbuse riskSubstances of abuseNicotinic cholinergicPatient groupDopaminergic inputAbused substancesAbuse disordersSchizophrenic patientsDysphoric effectsAbuse liabilityHigh dosesLow dosesNegative symptomsReceptor functionAltered responseSchizophreniaSchizophrenic individualsRiskReward processingSubjective distressImpulsive behaviorDoses