Robust Changes in Reward Circuitry During Reward Loss in Current and Former Cocaine Users During Performance of a Monetary Incentive Delay Task
Patel KT, Stevens MC, Meda SA, Muska C, Thomas AD, Potenza MN, Pearlson GD. Robust Changes in Reward Circuitry During Reward Loss in Current and Former Cocaine Users During Performance of a Monetary Incentive Delay Task. Biological Psychiatry 2013, 74: 529-537. PMID: 23778289, PMCID: PMC3775945, DOI: 10.1016/j.biopsych.2013.04.029.Peer-Reviewed Original ResearchConceptsMonetary incentive delay taskVentral tegmental areaHealthy subjectsFormer cocaine usersLoss anticipationIncentive delay taskCocaine usersTegmental areaLoss outcomesCurrent cocaine usersDrug useAbnormal brain activation patternsCocaine addictionCurrent usersActivation patternsCocaine-using groupDelay taskLong-term cocaine abstinenceFunctional magnetic resonanceSubstance-induced alterationsBrain activation patternsCircuit abnormalitiesAnterior cingulate activationControl subjectsRisk factorsTask-related concurrent but opposite modulations of overlapping functional networks as revealed by spatial ICA
Xu J, Zhang S, Calhoun VD, Monterosso J, Li CS, Worhunsky PD, Stevens M, Pearlson GD, Potenza MN. Task-related concurrent but opposite modulations of overlapping functional networks as revealed by spatial ICA. NeuroImage 2013, 79: 62-71. PMID: 23611864, PMCID: PMC3677796, DOI: 10.1016/j.neuroimage.2013.04.038.Peer-Reviewed Original ResearchConceptsCommon brain regionsSpatial independent component analysisDifferent functional networksMedial frontoparietal corticesFunctional networksCognitive tasksBrain regionsFrontoparietal cortexMultiple cognitive processesFunctional magnetic resonance imaging (fMRI) dataHigher-order association corticesTask-related modulationSame brain regionsCognitive processesVisual tasksMagnetic resonance imaging dataVentral tegmental areaPosterior cingulateAssociation cortexHealthy participantsHuman brainTimecoursesSubcortical structuresSpatial ICATask