2013
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 factors
2012
Exposure therapy, D-cycloserine, and functional magnetic resonance imaging in patients with snake phobia: a randomized pilot study.
Nave AM, Tolin DF, Stevens MC. Exposure therapy, D-cycloserine, and functional magnetic resonance imaging in patients with snake phobia: a randomized pilot study. The Journal Of Clinical Psychiatry 2012, 73: 1179-86. PMID: 23059145, DOI: 10.4088/jcp.11m07564.Peer-Reviewed Original ResearchConceptsExposure therapyD-cycloserinePhobic stimuliSnake phobiaFunctional magnetic resonance imaging (fMRI) taskRight dorsolateral prefrontal cortexPrefrontal brain activationPrefrontal cortex responsesD-cycloserine augmentationAnterior cingulate activationFunctional magnetic resonanceDorsolateral prefrontal cortexHuman brain functionDifferent neural pathwaysFear extinctionSnake stimuliExposure hierarchyNeural substratesBrain activationCingulate activationNeural responsesEmotional learningPrefrontal cortexCortex responsesPerigenual cingulate